(CMA)
(CNAS)
(ISO)
(高新技术企业)
盐锶测定的标准相关标准参考信息
ASTM E463-21 用硅钼酸盐可见分光光度法测定萤石中二氧化硅的标准试验方法
简介：
信息：ICS：73.060.40 CCS： 发布：2021-10-01 实施：
ASTM E463-14a 通过硅钼酸盐可见分光光度法测定荧光体中二氧化硅的标准测试方法
简介：
信息：ICS：73.060.40 CCS： 发布：2014-10-01 实施：
ASTM D6017-97(2009) 用于测定皮革中硫酸镁（Epsom盐）的标准测试方法
简介：
信息：ICS：59.140.10 CCS： 发布：2009-04-01 实施：
ASTM E278-21 用磷钼酸盐共沉淀和硝酸滴定法测定铁矿石中磷的标准试验方法
简介：
信息：ICS：73.060.10 CCS： 发布：2021-10-01 实施：
ASTM E463-14 用硅钼酸盐可见光谱法测定萤石中二氧化硅的标准试验方法
简介：
信息：ICS：73.060.40 CCS： 发布：2014-08-15 实施：
ASTM D7558-2009(2014) 对天然胶乳和腈类手套中的可萃取二烷二硫胺甲酸盐, 秋兰姆和巯基苯并噻唑加速剂进行定量的比色测定/分光光度测定程序的标准试验方法
简介：5.1x00a0; Dialkyldithiocarbamates (DTCs), benzothiazoles, and thiurams are often used as vulcanization accelerators in NRL products. Zinc DTC accelerators are added either directly or are formed in situ during the vulcanization process via reaction between a thiuram(s) and zinc oxide. DTCs, benzothiazoles, and thiurams have been detected in leachates from medical devices made of rubber such as gloves. Studies have shown these chemicals can cause allergic contact dermatitis. A simple selective method to monitor rubber accelerator levels in rubber extracts would be useful for quality control, product screening and research. 5.2x00a0;This colorimetric assay measures dialkyldithiocarbamates, including zinc dialkyldithiocarbamates (ZDTC), mercaptobenzothiazole (MBT) and thiurams as a total thiol vulcanization accelerator level in rubber products. A UV spectrophotometer with detection at 320 nm is used to measure the ZDTC, mercaptobenzothiazole and thiurams. Sample extracts diluted at 1:20 prior to measurement on the spectrophotometer is usually sufficient to quantify the residual accelerator level from most commercially available rubber gloves; however, sample dilution can be adjusted (from neat extract to > 1:20 dilution) based on analytical needs. Thiurams and ZDTCs complex with cobalt turning the extract to a concentration-dependent shade of green. ZDTCs reacts quickly while thiurams react very slowly (requiring a heat catalyst). Mercaptobenzothiazole does not complex to Co(III), however, it absorbs strongly at 320 nm. It can be distinguished from both ZDTCs and thiurams by its strong absorbance at 320 nm without the cobalt dependent visible green color. Cobalt complexed thiurams and ZDTCs, but not MBT, also have and absorbance at 370 nm (2). 1.1x00a0;This test method is designed to quantify the amount of total extractable accelerators in natural rubber latex (NRL) and nitrile gloves. Three common classes of rubber accelerators, the mercaptobenzothiazole (MBT), thiuram, and thiocarbamate type compounds can be detected and quantified by this method. If the specific rubber accelerator(s) present in the glove material is not known, quantification is based on zinc dibutyldithiocarbamate (ZDBC) equivalents. This method will not detect all potential rubber accelerators, including mercaptobenzothiazole disulfide, dimorpholine, thioureas and diphenyl diamine. 1.2x00a0;For the purpose of this test method, the range of chemical accelerator measurement is based on the limit of detection (LOD) established in the performing laboratory. 1.3x00a0;This test method should be performed by experienced analysts or under the supervision of those experienced in the use of spectroscopy and working with organic solvents. 1.4x00a0;This test method has not been validated for measurement of long chain dithiocarbamates or accelerators from other rubber products, such as lubricated condoms (1).2 Although this assay has been reported in the literature for the evaluation of accelerator levels in condoms, further validation for accelerator measurement from other rubber products is required by the testing laborator......
信息：ICS：83.040.20 CCS： 发布：2009 实施：
ASTM D8133-21 溶剂萃取-气相色谱/质谱法测定聚氯乙烯塑料中低含量邻苯二甲酸盐的标准试验方法
简介：
信息：ICS：83.080.20 CCS： 发布：2021-01-15 实施：
ASTM E463-2014 使用硅钼酸盐可见光谱法测定氟石中二氧化硅的标准试验方法
简介：5.1x00a0;This test method is intended as a referee method for compliance with compositional specifications for impurity content. It is assumed that all who use this procedure will be trained analysts capable of performing common laboratory practices skillfully and safely. It is expected that work will be performed in a properly equipped laboratory and that proper waste disposal procedures will be followed. Follow appropriate quality control practices such as those described in Guide E882. 1.1x00a0;This test method covers the determination of silica in fluorspar in concentrations from 0.58201;% to 108201;%. 1.2x00a0;The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.3x00a0;This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
信息：ICS：73.060.40 (Aluminium ores); 73.080 (Non-metallifer CCS： 发布：2014 实施：
ASTM D7558-2009 对天然胶乳和腈类手套中的可萃取二烷二硫胺甲酸盐,秋兰姆和巯基苯并噻唑加速剂进行定量的比色测定/分光光度测定程序的标准试验方法
简介：nbsp;nbsp;nbsp;Dialkyldithiocarbamates (DTCs), benzothiazoles, and thiurams are often used as vulcanization accelerators in NRL products. Zinc DTC accelerators are added either directly or are formed in situ during the vulcanization process via reaction between a thiuram(s) and zinc oxide. DTCs, benzothiazoles, and thiurams have been detected in leachates from medical devices made of rubber such as gloves. Studies have shown these chemicals can cause allergic contact dermatitis. A simple selective method to monitor rubber accelerator levels in rubber extracts would be useful for quality control, product screening and research. This colorimetric assay measures dialkyldithiocarbamates, including zinc dialkyldithiocarbamates (ZDTC), mercaptobenzothiazole (MBT) and thiurams as a total thiol vulcanization accelerator level in rubber products. A UV spectrophotometer with detection at 320 nm is used to measure the ZDTC, mercaptobenzothiazole and thiurams. Sample extracts diluted at 1:20 prior to measurement on the spectrophotometer is usually sufficient to quantify the residual accelerator level from most commercially available rubber gloves; however, sample dilution can be adjusted (from neat extract to > 1:20 dilution) based on analytical needs. Thiurams and ZDTCs complex with cobalt turning the extract to a concentration-dependent shade of green. ZDTCs reacts quickly while thiurams react very slowly (requiring a heat catalyst). Mercaptobenzothiazole does not complex to Co(III), however, it absorbs strongly at 320 nm. It can be distinguished from both ZDTCs and thiurams by its strong absorbance at 320 nm without the cobalt dependent visible green color. Cobalt complexed thiurams and ZDTCs, but not MBT, also have and absorbance at 370 nm (2).1.1 This test method is designed to quantify the amount of total extractable accelerators in natural rubber latex (NRL) and nitrile gloves. Three common classes of rubber accelerators, the mercaptobenzothiazole (MBT), thiuram, and thiocarbamate type compounds can be detected and quantified by this method. If the specific rubber accelerator(s) present in the glove material is not known, quantification is based on zinc dibutyldithiocarbamate (ZDBC) equivalents. This method will not detect all potential rubber accelerators, including mercaptobenzothiazole disulfide, dimorpholine, thioureas and diphenyl diamine. 1.2 For the purpose of this test method, the range of chemical accelerator measurement is based on the limit of detection (LOD) established in the performing laboratory. 1.3 This test method should be performed by experienced analysts or under the supervision of those experienced in the use of spectroscopy and working with organic solvents. 1.4 This test method has not been validated for measurement of long chain dithiocarbamates or accelerators from other rubber products, such as lubricated condoms (1). Although this assay has been reported in the literature for the evaluation of accelerator levels in condoms, further validation for accelerator measurement from other rubber products is required by the testing laboratory prior to use. 1.5 This test method is not designed to evaluate the potential of rubber materials to induce or elicit Type IV skin sensitization reactions (for Type IV skin sensitization reactions see Test Method D 6355). Total extractable accelerator content does not reflect bioavailablity of individual accelerators that are detected and measured by this method. This test method should be used to test and measure the total residual chemical accelerator level in NRL and nitrile gloves under controlled laboratory conditions, and should not be used to describe, appraise, or assess the hazard or risk of these materials or products under actual in-use conditions.
信息：ICS：83.040.20 (Rubber compounding ingredients) CCS：G40 发布：2009 实施：
ASTM D6017-97(2020)e1 用于测定皮革中硫酸镁（Epsom盐）的标准测试方法
简介：
信息：ICS：59.140.10 CCS： 发布：2020-04-01 实施：
ASTM D7823-2014 使用热脱附-气相色谱/质谱法测定聚氯乙烯塑料中低水平调节的邻苯二甲酸盐的标准试验方法
简介：5.1x00a0;Identification and quantitation of phthalates: DBP, BBP, DEHP, DNOP, DINP, and DIDP are required for regulated articles. Regulations include: EUx2014;Directive 2005/84/EC, USx2014;Consumer Product Safety Improvement Act of 2008x2014;section 108, Japanx2014;Health, Labor and Welfare Ministry guideline No.336 (2010). This test method provides a procedure to identify and quantify regulated phthalates in PVC. 5.2x00a0;Other techniques successfully used to separate and identify phthalates in PVC include GC/MS, HPLC/UV, HPLC/MS, FTIR, and GC/FID (flame ionization detector). 1.1x00a0;This test method provides a procedure to identify and quantify six phthalates by thermal desorption (TD) gas chromatography (GC) mass spectrometry (MS). The phthalates are BBP, DBP, DEHP, DNOP, DINP and DIDP. Note 1:x00a0;The method can be extended to include other phthalates. 1.2x00a0;Within the context of this method, x201c;low levelx201d; is defined as 1000 ppm. 1.3x00a0;The values in SI units are to be regarded as standard. 1.4x00a0;This test method includes references, notes and footnotes that provide explanatory material. These notes and footnotes (excluding those in the tables and figures) shall not be considered as requirements of this method. 1.5x00a0;This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Note 2:x00a0;There is no known ISO equivalent to this test method.
信息：ICS：83.040.30 (Auxiliary materials and additives for p CCS： 发布：2014 实施：
ASTM E463-2009 用硅钼酸盐可见光分光法测定萤石中二氧化硅含量的标准试验方法
简介：This test method is intended as a referee method for compliance with compositional specifications for impurity content. It is assumed that all who use this procedure will be trained analysts capable of performing common laboratory practices skillfully and safely. It is expected that work will be performed in a properly equipped laboratory and that proper waste disposal procedures will be followed. Follow appropriate quality control practices such as those described in Guide E 882.1.1 This test method covers the determination of silica in fluorspar in concentrations from 0.5 % to 10 %. 1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
信息：ICS：73.080 CCS：D50 发布：2009 实施：
ASTM D5932-20 工作场所空气中2,4-甲苯二
简介：
信息：ICS：13.040.30 CCS： 发布：2020-03-01 实施：
ASTM E463-2014a 使用硅钼酸盐可见分光光度法测定氟石中二氧化硅的标准试验方法
简介：5.1x00a0;This test method is intended as a referee method for compliance with compositional specifications for impurity content. It is assumed that all who use this procedure will be trained analysts capable of performing common laboratory practices skillfully and safely. It is expected that work will be performed in a properly equipped laboratory and that proper waste disposal procedures will be followed. Follow appropriate quality control practices such as those described in Guide E882. 1.1x00a0;This test method covers the determination of silica in fluorspar in concentrations from 0.58201;% to 108201;%. 1.2x00a0;The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.3x00a0;This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
信息：ICS：73.060.40;73.080 CCS： 发布：2014 实施：
ASTM E463-08 用硅钼酸盐可见光谱法测定萤石中二氧化硅的标准试验方法
简介：
信息：ICS：73.060.40 CCS： 发布：2008-12-15 实施：
ASTM F3414-20 含聚氯乙烯地板中邻苯二甲酸盐浓度测定的标准试验方法
简介：
信息：ICS：83.080.20 CCS： 发布：2020-02-01 实施：
KS M 6901-2013(2018) 用于测定皮革铅盐存在的标准测试方法
简介：
信息：ICS：59.140.30 CCS： 发布：2013-12-31 实施：
ASTM E1917-08 用磷钒钼酸盐分子吸收光谱法测定镍、镍铁和镍合金中磷的标准试验方法
简介：
信息：ICS：77.120.40 CCS： 发布：2008-12-15 实施：
ASTM D2448-85(2019) 通过测量颜料渗滤液的比电阻测定颜料中水溶性盐的标准试验方法
简介：
信息：ICS：87.060.10 CCS： 发布：2019-10-01 实施：
ASTM E1917-13 通过磷钼酸盐分光光度法测定镍 铁镍合金和镍合金中的磷的标准测试方法
简介：
信息：ICS：77.120.40 CCS： 发布：2013-10-01 实施：
ASTM F2260-03(2008) 用质子核磁共振（1H NMR）光谱法测定壳聚糖盐中脱乙酰度的标准试验方法
简介：
信息：ICS：11.120.20 CCS： 发布：2008-05-01 实施：
ASTM E1917-13(2018) 通过磷钼酸盐分光光度法测定镍 铁镍合金和镍合金中的磷的标准测试方法
简介：
信息：ICS：77.120.40 CCS： 发布：2018-10-01 实施：
ASTM F2602-13 用多角度光散射检测（SEC-MALS）通过尺寸排阻色谱法测定壳聚糖和壳聚糖盐的摩尔质量的标准测试方法
简介：
信息：ICS：11.120.10 CCS： 发布：2013-08-01 实施：
ASTM F2602-08e1 用多角度光散射检测（SEC-MALS）通过尺寸排阻色谱法测定壳聚糖和壳聚糖盐的摩尔质量的标准测试方法
简介：
信息：ICS：11.120.10 CCS： 发布：2008-02-01 实施：
ASTM F2602-18 用多角度光散射检测（SEC-MALS）通过尺寸排阻色谱法测定壳聚糖和壳聚糖盐的摩尔质量的标准测试方法
简介：
信息：ICS：11.120.10 CCS： 发布：2018-06-01 实施：
ASTM E1917-2013 采用磷钒钼酸盐分光光度法测定镍, 镍铁和镍合金中磷的标准试验方法
简介：5.1x00a0;This test method is used for the determination of phosphorus in nickel, ferronickel, and nickel alloy samples by molecular absorption spectrometry to check compliance with compositional specifications. It is assumed that all who use the procedure will be trained analysts capable of performing common laboratory procedures skillfully and safely. It is expected that the work will be performed in a properly equipped laboratory and that proper waste disposal procedures will be followed. Appropriate quality control practices must be followed, such as those described in Guide E882. 1.1x00a0;This test method covers the determination of phosphorus in nickel, ferronickel, and nickel alloys in the range 0.00078201;% to 0.058201;%. 1.2x00a0;Arsenic, chromium, hafnium, niobium, silicon, tantalum, titanium, and tungsten interfere, but the interference can be avoided by complexation or volatilization (for chromium). The lowest phosphorus content (0.00078201;%) can be reached only in samples with low contents of interfering elements. 1.3x00a0;The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.4x00a0;This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. For specific hazards associated with the use of this test method see Practices E50. Refer to specific warning notes given throughout this test method.
信息：ICS：77.120.40 (Nickel, chromium and their alloys) CCS： 发布：2013 实施：
ASTM F2602-08 用多角度光散射检测（SEC-MALS）通过尺寸排阻色谱法测定壳聚糖和壳聚糖盐的摩尔质量的标准测试方法
简介：
信息：ICS：11.120.10 CCS： 发布：2008-02-01 实施：
ASTM F2260-18 用质子核磁共振（1H NMR）光谱法测定壳聚糖盐中脱乙酰度的标准试验方法
简介：
信息：ICS： CCS： 发布：2018-06-01 实施：
ASTM F2602-2013 采用带多角度光散射检测器的尺寸筛析色谱法(SEC-MALS)测定壳聚糖和壳聚糖盐摩尔质量的标准试验方法
简介：4.1x00a0;The degree of deacetylation of chitosan, as well at the molar mass and molar mass distribution, determines the functionality of chitosan in an application. For instance, functional and biological effects are highly dependent upon the composition and molar mass of the polymer. 4.2x00a0;This test method describes procedures for measurement of molar mass of chitosan chlorides and glutamates, and chitosan base, although it in principle applies to any chitosan salt. The measured molar mass is that for chitosan acetate, since the mobile phase contains acetate as counter ion. This value can further be converted into the corresponding molar mass for the chitosan as a base, or the parent salt form (chloride or glutamate). 4.3x00a0;Light scattering is one of very few methods available for the determination of absolute molar mass and structure, and it is applicable over the broadest range of molar masses of any method. Combining light scattering detection with size exclusion chromatography (SEC), which sorts molecules according to size, gives the ability to analyze polydisperse samples, as well as obtaining information on branching and molecular conformation. This means that both the number-average and mass-average values for molar mass and size may be obtained for most samples. Furthermore, one has the ability to calculate the distributions of the molar masses and sizes. 4.4x00a0;Multi-angle laser light scattering (MALS) is a technique where measurements of scattered light are made simultaneously over a range of different angles. MALS detection can be used to obtain information on molecular size, since this parameter is determined by the angular variation of the scattered light. Molar mass may in principle be determined by detecting scattered light at a single low angle (LALLS). However, advantages with MALS as compared to LALLS are: (1) less noise at larger angles, (2) the precision of measurements are greatly improved by detecting at several angles, and (3) the ability to detect angular variation allows determination of size, branching, aggregation, and molecular conformation. 4.5x00a0;Size exclusion chromatography uses columns, which are typically packed with polymer particles containing a network of uniform pores into which solute and solvent molecules can diffuse. While in the pores, molecules are effectively trapped and removed from the flow of the mobile phase. The average residence time in the pores depends upon the size of the solute molecules. Molecules that are larger than the average pore size of the packing are excluded and experience virtually no retention; these are eluted first, in the void volume of the column. Molecules, which may penetrate the pores will have a larger volume available for diffusion, they will suffer retention depending on their molecular size, with the smaller molecules eluting last. 4.6x00a0;For polyelectrolytes, dialysis against the elution buffer has been suggested, in order to eliminate Donnan-type artifacts in the molar mass determination by light scattering (1, 2).5 However, in the present method, the size exclusion chromatography step preceding the light scatter detection is an efficient substitute for a dialysis step. The sample is separated on SEC columns with large excess of elution buffer for 30 to 40 min, and it is therefore in full equilibrium with the elution buf............
信息：ICS：11.120.10 (Medicaments) CCS： 发布：2013 实施：
ASTM F2602-2008e1 用多角度光散射器尺寸筛析色谱法(SEC-MALS)测定壳聚糖和壳聚糖盐摩尔质量的标准试验方法
简介：The degree of deacetylation of chitosan, as well at the molar mass and molar mass distribution, determines the functionality of chitosan in an application. For instance, functional and biological effects are highly dependent upon the composition and molar mass of the polymer. This test method describes procedures for measurement of molar mass of chitosan chlorides and glutamates, and chitosan base, although it in principle applies to any chitosan salt. The measured molar mass is that for chitosan acetate, since the mobile phase contains acetate as counter ion. This value can further be converted into the corresponding molar mass for the chitosan as a base, or the parent salt form (chloride or glutamate). Light scattering is one of very few methods available for the determination of absolute molar mass and structure, and it is applicable over the broadest range of molar masses of any method. Combining light scattering detection with size exclusion chromatography (SEC), which sorts molecules according to size, gives the ability to analyze polydisperse samples, as well as obtaining information on branching and molecular conformation. This means that both the number-average and mass-average values for molar mass and size may be obtained for most samples. Furthermore, one has the ability to calculate the distributions of the molar masses and sizes. Multi-angle laser light scattering (MALS) is a technique where measurements of scattered light are made simultaneously over a range of different angles. MALS detection can be used to obtain information on molecular size, since this parameter is determined by the angular variation of the scattered light. Molar mass may in principle be determined by detecting scattered light at a single low angle (LALLS). However, advantages with MALS as compared to LALLS are: (1) less noise at larger angles, (2) the precision of measurements are greatly improved by detecting at several angles, and (3) the ability to detect angular variation allows determination of size, branching, aggregation, and molecular conformation. Size exclusion chromatography uses columns, which are typically packed with polymer particles containing a network of uniform pores into which solute and solvent molecules can diffuse. While in the pores, molecules are effectively trapped and removed from the flow of the mobile phase. The average residence time in the pores depends upon the size of the solute molecules. Molecules that are larger than the average pore size of the packing are excluded and experience virtually no retention; these are eluted first, in the void volume of the column. Molecules, which may penetrate the pores will have a larger volume available for diffusion, they will suffer retention depending on their molecular size, with the smaller molecules eluting last. For polyelectrolytes, dialysis against the elution buffer has been suggested, in order to eliminate Donnan-type artifacts in the molar mass determination by light scattering (1, 2). However, in the present method, the size exclusion chromatography step preceding the light scatter detection is an efficient substitute for a dialysis step. The sample is separated on SEC columns with large excess of elution buffer for 30 to 40 min, and it is therefore in full equilibrium with the elution buffer when it reaches the MALS detector.1.1 This test method covers the determination of the molar mass of chitosan and chitosan salts intended for use in biomedical and pharmaceutical applications as well as in tissue engineered medical products (TEMPs) by size exclusion chromatography with multi-angle laser light scattering detection (SEC-MALS). A guide for the characterization of chitosan salts has been published as Guide F 2103. 1.2 Chitosan and chitosan sal......
信息：ICS：11.120.10 CCS：C10 发布：2008 实施：
ASTM D7730-17 通过液相色谱/串联质谱法测定海水中二辛基磺基琥珀酸盐的标准测试方法（LC/MS/MS）
简介：
信息：ICS：71.060.50 CCS： 发布：2017-12-15 实施：
ASTM D2448-85(2012) 通过测量颜料渗滤液的比电阻测定颜料中水溶性盐的标准试验方法
简介：
信息：ICS：87.060.10 CCS： 发布：2012-11-01 实施：
ASTM D4542-07 用折射计测定土壤可溶盐含量和孔隙水提取的标准试验方法
简介：
信息：ICS：13.080.10 CCS： 发布：2007-07-01 实施：
ASTM D4954-89(2017) 洗涤剂中硝基三乙酸盐测定的标准试验方法
简介：
信息：ICS：71.100.40 CCS： 发布：2017-01-01 实施：
ASTM F2260-03(2012)e1 用质子核磁共振（1H NMR）光谱法测定壳聚糖盐中脱乙酰度的标准试验方法
简介：
信息：ICS： CCS： 发布：2012-10-01 实施：
ASTM D2448-85(2007) 通过测量颜料渗滤液的比电阻测定颜料中水溶性盐的标准试验方法
简介：
信息：ICS：87.060.10 CCS： 发布：2007-06-01 实施：
ASTM E314-16 通过焦磷酸盐电位法和高碘酸盐分光光度法测定铁矿石中的锰的标准测试方法
简介：
信息：ICS：73.060.10 CCS： 发布：2016-11-01 实施：
ASTM D7730-11 通过液相色谱/串联质谱法测定海水中二辛基磺基琥珀酸盐的标准测试方法（LC/MS/MS）
简介：
信息：ICS：71.060.50 CCS： 发布：2011-05-01 实施：
ASTM D4542-2007 用折射计测定土壤中可溶盐含量和孔隙水萃取的标准试验方法
简介：The soluble salt content may be used to correct the index properties of soils (water content, void ratio, specific gravity, degree of saturation, and dry density). It is necessary to minimize the time period between sampling and testing due to chemical changes which may occur within the soil sample. Note 18212;The quality of the result produced by this standard is dependent on the competence of the personnel performing it, and the suitability of the equipment and facilities used. Agencies that meet the criteria of Practice D 3740 are generally considered capable of competent and objective testing/sampling/inspection/etc. Users of this standard are cautioned that compliance with Practice D 3740 does not in itself assure reliable results. Reliable results depend on many factors; Practice D 3740 provides a means of evaluating some of those factors. Note 28212;Hulbert and Brindle (2) and Torrance (3) have shown that prolonged storage should be avoided as unpredictable and nonreproducible chemical changes may occur.1.1 This test method covers a rapid procedure for squeezing pore water from fine-grained soils for the purpose of determining the amount of soluble salts present in the extracted pore water.1.2 This test method was developed for soils having a water content equal to or greater than approximately 14 %, for example, marine soils. An extensive summary of procedures for extracting pore water from soils has been presented by Kriukov and Manheim (1).1.3 This test method is not generally applicable for determining the soluble salt content of the pore water extracted from coarse-grained soils, such as clean sands and gravels.1.4 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.1.5 All observed and calculated values shall conform to the guidelines for significant digits and rounding established in Practice D 6026.
信息：ICS：13.080.10 (Chemical characteristics of soil) CCS：B11 发布：2007 实施：
ASTM D7823-16 adjunct 使用热脱附-气相色谱/质谱法测定聚氯乙烯塑料中低水平调节的邻苯二甲酸盐的标准试验方法
简介：
信息：ICS： CCS： 发布：2016-01-01 实施：2016-01-01
ASTM E314-10 用焦磷酸盐（电位）和高碘酸盐（光度）技术测定铁矿石中锰的标准试验方法
简介：
信息：ICS：73.060.10 CCS： 发布：2010-06-15 实施：
ASTM D6018-96(2006) 用于测定皮革铅盐存在的标准测试方法
简介：
信息：ICS：59.140.30 CCS： 发布：2006-10-01 实施：
ASTM D7823-2016 使用热脱附-气相色谱/质谱法测定聚氯乙烯塑料中低水平调节的邻苯二甲酸盐的标准试验方法
简介：5.1x00a0;Identification and quantitation of phthalates: DBP, BBP, DEHP, DNOP, DINP, and DIDP are required for regulated articles. Regulations include: EUx2014;Directive 2005/84/EC, USx2014;Consumer Product Safety Improvement Act of 2008x2014;section 108, Japanx2014;Health, Labor and Welfare Ministry guideline No.336 (2010). This test method provides a procedure to identify and quantify regulated phthalates in PVC. 5.2x00a0;Other techniques successfully used to separate and identify phthalates in PVC include GC/MS, HPLC/UV, HPLC/MS, FTIR, and GC/FID (flame ionization detector). 1.1x00a0;This test method provides a procedure to identify and quantify six phthalates by thermal desorption (TD) gas chromatography (GC) mass spectrometry (MS). The phthalates are BBP, DBP, DEHP, DNOP, DINP and DIDP. Note 1:x00a0;The method can be extended to include other phthalates. 1.2x00a0;Within the context of this method, x201c;low levelx201d; is defined as 1000 ppm. 1.3x00a0;The values in SI units are to be regarded as standard. 1.4x00a0;This test method includes references, notes and footnotes that provide explanatory material. These notes and footnotes (excluding those in the tables and figures) shall not be considered as requirements of this method. 1.5x00a0;This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Note 2:x00a0;There is no known ISO equivalent to this standard.
信息：ICS：83.040.30 CCS： 发布：2016 实施：
ASTM F2259-2010 质子核磁共振波谱法测定褐藻酸盐中的化学成分和序列的标准试验方法
简介：The composition and sequential structure of alginate determines the functionality of alginate in an application. For instance, the gelling properties of an alginate are highly dependent upon the monomer composition and sequential structure of the polymer. Gel strength will depend upon the guluronic acid content (FG) and also the average number of consecutive guluronate moieties in G-block structures (NG>1). Chemical composition and sequential structure of alginate can be determined by 1H- and 13C-nuclear magnetic resonance spectroscopy (NMR). A general description of NMR can be found in x003C;761> of the USP24-NF19. The NMR methodology and assignments are based on data published by Grasdalen et al. (1979, 1981, 1983). , , The NMR technique has made it possible to determine the monad frequencies FM (fraction of mannuronate units) and FG (fraction of guluronate units), the four nearest neighboring (diad) frequencies FGG, FMG, FGM, FMM, and the eight next nearest neighboring (triad) frequencies FGGG, FGGM, FMGG, FMGM, FMMM, FMMG, FGMM, FGMG. Knowledge of these frequencies enables number averages of block lengths to be calculated. NG is the number average length of G-blocks, and NG>1 is the number average length of G-blocks from which singlets (-MGM-) have been excluded. Similarly, NM is the number average length of M-blocks, and NM>1 is the number average length of M-blocks from which singlets (-GMG-) have been excluded. 13C NMR must be used to determine the M-centered triads and NM>1. This test method describes only the 1H NMR analysis of alginate. Alginate can be well characterized by determining FG and NG>1. In order to obtain well-resolved NMR spectra, it is necessary to reduce the viscosity and increase the mobility of the molecules by depolymerization of alginate to a degree of polymerization of about 20 to 50. Acid hydrolysis is used to depolymerize the alginate samples. Freeze-drying, followed by dissolution in 99 % D2O, and another freeze-drying before dissolution in 99.9 % D2O yields samples with low 1H2O content. TTHA is used as a chelator to prevent traces of divalent cations to interact with alginate. While TTHA is a more effective chelator, other agents such as EDTA and citrate may be used. Such interactions may lead to line broadening and selective loss of signal intensity. Samples are analyzed at a temperature of 80 x00B1; 1x00B0;C. Elevated sample temperature contributes to reducing sample viscosity and repositions the proton signal of residual water to an area outside that of interest.1.1 This test method covers the determination of the composition and monomer sequence of alginate intended for use in biomedical and pharmaceutical applications as well as in Tissue Engineered Medical Products (TEMPs) by high-resolution proton NMR (1H NMR). A guide for the characterization of alginate has been published as Guide F2064. 1.2 Alginate, a linear polymer composed of x03B2;-D-mannuronate (M) and its C-5 epimer x03B1;-L-guluronate (G) linked by x03B2;-(1>4) glycosidic bonds, is characterized by calculating parameters such as mannuronate/guluronate (M/G) ratio, guluronic acid content (G-content), and average length of blocks of consecutive G monomers (that is, NG>1
信息：ICS：11.120.20;71.040.50 CCS：C10 发布：2010 实施：
ASTM E278-01(2010)e1 通过磷钼酸盐共沉淀和硝酸滴定法测定铁矿石中磷的标准试验方法
简介：
信息：ICS：73.060.10 CCS： 发布：2005-05-01 实施：
ASTM E314-10(2015)e1 用焦磷酸盐（电位）和高碘酸盐（分光光度）技术测定铁矿石中锰的标准试验方法
简介：
信息：ICS：73.060.10 CCS： 发布：2015-11-15 实施：
ASTM E314-2010 用焦磷酸盐(电势测定的)和高碘酸盐(测光的)技术测定铁矿石中锰的标准试验方法
简介：This test method is intended to be used for compliance with compositional specifications for manganese content in iron ores, concentrates, and agglomerates. It is assumed that all who use these procedures will be trained analysts capable of performing common laboratory procedures skillfully and safely. It is expected that work will be performed in a properly equipped laboratory and that proper waste disposal procedures will be followed. Appropriate quality control practices must be followed such as those described in Guide E882.1.1 These test methods cover the determination of manganese in iron ores, concentrates, and agglomerates. The following two test methods are included:
信息：ICS：73.060.10 (Iron ores) CCS：D31 发布：2010 实施：
ASTM E278-01(2005) 用磷钼酸盐共沉淀和硝酸滴定法测定铁矿石中磷的标准试验方法
简介：
信息：ICS：73.060.10 CCS： 发布：2005-05-01 实施：
ASTM E278-01(2015)e1 通过磷钼酸盐共沉淀和硝酸滴定法测定铁矿石中磷的标准试验方法
简介：
信息：ICS：73.060.10 CCS： 发布：2015-11-15 实施：
ASTM E314-2010(2015)e1 采用焦磷酸盐 (电位法) 和高碘酸盐 (分光光度法) 技术测定铁矿石中锰含量的标准试验方法
简介：4.1x00a0;This test method is intended to be used for compliance with compositional specifications for manganese content in iron ores, concentrates, and agglomerates. It is assumed that all who use these procedures will be trained analysts capable of performing common laboratory procedures skillfully and safely. It is expected that work will be performed in a properly equipped laboratory and that proper waste disposal procedures will be followed. Appropriate quality control practices must be followed such as those described in Guide E882. 1.1x00a0;These test methods cover the determination of manganese in iron ores, concentrates, and agglomerates. The following two test methods are included: x00a0; Sections 8199;Test Method A (Pyrophosphate (Potentiometric)) x2007;8 x2013; 15 8199;Test Method B (Periodate (Photometric)) 16 x2013; 22 1.2x00a0;Test Method A covers the determination of manganese in the range from 2.58201;% to 15.08201;%. Test Method 8201;B covers the determination of manganese in the range of 0.018201;% to 5.008201;%. Note 1:x00a0;The lower limit for this test method is set at 508201;% relative error for the lowest grade material tested in the interlaboratory study in accordance with Practice E1601. 1.3x00a0;The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.4x00a0;This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
信息：ICS：73.060.10 CCS： 发布：2010 实施：
ASTM E463-03 用硅钼酸盐可见光谱法测定萤石中二氧化硅的标准试验方法
简介：
信息：ICS：73.060.40 CCS： 发布：2003-06-10 实施：
ASTM D4542-15 孔隙水提取的标准试验方法和折射仪测定土壤中可溶性盐含量
简介：
信息：ICS：13.080.10 CCS： 发布：2015-11-01 实施：
ASTM F2259-2010(2012)e1 用质子核磁共振 (1H NMR) 光谱法测定藻朊酸盐中化学构成和序列的标准试验方法
简介：Significance and UseTop Bottom 4.1 The composition and sequential structure of alginate determines the functionality of alginate in an application. For instance, the gelling properties of an alginate are highly dependent upon the monomer composition and sequential structure of the polymer. Gel strength will depend upon the guluronic acid content (FG) and also the average number of consecutive guluronate moieties in G-block structures (NGgt;1). 4.2 Chemical composition and sequential structure of alginate can be determined by 1H- and 13C-nuclear magnetic resonance spectroscopy (NMR). A general description of NMR can be found in lt;761gt; of the USP 35-NF30 . The NMR methodology and assignments are based on data published by Grasdalen et al. (1979, 1981, 1983).4, 5, 6 The NMR technique has made it possible to determine the monad frequencies FM (fraction of mannuronate units) and FG (fraction of guluronate units), the four nearest neighboring (diad) frequencies FGG, FMG, FGM, FMM, and the eight next nearest neighboring (triad) frequencies FGGG, FGGM, FMGG, FMGM, FMMM, FMMG, FGMM, FGMG. Knowledge of these frequencies enables number averages of block lengths to be calculated. NG is the number average length of G-blocks, and NGgt;1 is the number average length of G-blocks from which singlets (-MGM-) have been excluded. Similarly, NM is the number average length of M-blocks, and NMgt;1 is the number average length of M-blocks from which singlets (-GMG-) have been excluded. 13C NMR must be used to determine the M-centered triads and NMgt;1. This test method describes only the 1H NMR analysis of alginate. Alginate can be well characterized by determining FG and NGgt;1. 4.3 In order to obtain well-resolved NMR spectra, it is necessary to reduce the viscosity and increase the mobility of the molecules by depolymerization of alginate to a degree of poly......
信息：ICS：11.120.20 (Wound dressings. Compresses); 71.040.50 CCS： 发布：2010 实施：
ASTM D6017-97(2003) 用于测定皮革中硫酸镁（Epsom盐）的标准测试方法
简介：
信息：ICS：59.140.10 CCS： 发布：2003-05-10 实施：
ASTM D6017-97(2015) 用于测定皮革中硫酸镁（Epsom盐）的标准测试方法
简介：
信息：ICS：59.140.10 CCS： 发布：2015-09-01 实施：
ASTM D4954-89(2009) 洗涤剂中硝基三乙酸盐测定的标准试验方法
简介：
信息：ICS：71.100.40 CCS： 发布：2009-10-01 实施：
ASTM F2260-03 用质子核磁共振（1H NMR）光谱法测定壳聚糖盐中脱乙酰度的标准试验方法
简介：
信息：ICS：11.120.20 CCS： 发布：2003-04-10 实施：
ASTM D4542-2015 使用折射计进行孔隙水萃取和测定土壤可溶性盐含量的标准试验方法
简介：4.1x00a0;The soluble salt content may be used to correct the index properties of soils such as water content, void ratio, specific gravity, degree of saturation, and dry density). 4.2x00a0;Minimize the time period between sampling and testing to reduce chemical changes, which may occur within the soil sample. Note 1:x00a0;The quality of the result produced by this standard is dependent on the competence of the personnel performing it, and the suitability of the equipment and facilities used. Agencies that meet the criteria of Practice D3740 are generally considered capable of competent and objective testing/sampling/inspection/etc. Users of this standard are cautioned that compliance with Practice D3740 does not in itself ensure reliable results. Reliable results depend on many factors; Practice D3740 provides a means of evaluating some of those factors. Note 2:x00a0;Hulbert and Brindle (2) and Torrance (3) have shown that prolonged storage should be avoided as unpredictable and non-reproducible chemical changes may occur. 1.1x00a0;These test methods cover a rapid procedure for squeezing pore water from finegrained soils for the purpose of determining the amount of soluble salts present in the extracted pore water. 1.2x00a0;These test methods were developed for soils having a water content equal to or greater than approximately 14 %, for example, marine soils. An extensive summary of procedures for extracting pore water from soils has been presented by Kriukov and Manheim (1).2 1.3x00a0;These test methods are not generally applicable for determining the soluble salt content of the pore water extracted from coarse-grained soils, such as clean sands and gravels. 1.4x00a0;Test Method A provides a procedure using a refractometer with a refraction index scale; Test Method B provides a procedure using a refractometer with a parts per thousand (ppt) scale. 1.5x00a0;Unitsx2014;The values stated in SI units are to be regarded as the standard. 1.6x00a0;All observed and calculated values shall conform to the guidelines for significant digits and rounding established in Practice D6026 unless superseded by these test methods. 1.6.1x00a0;The procedures used to specify how data are collected/recorded and calculated i......
信息：ICS：13.080.10 CCS： 发布：2015 实施：
ASTM E463-09 用硅钼酸盐可见光谱法测定萤石中二氧化硅的标准试验方法
简介：
信息：ICS：73.060.40 CCS： 发布：2009-05-01 实施：
ASTM F2260-2003(2012)e1 用质子核磁共振 (1H NMR) 光谱法测定壳聚糖盐脱乙酰度的标准试验方法
简介：4.1x00a0;The degree of deacetylation of chitosan salts is an important characterization parameter since the charge density of the chitosan molecule is responsible for potential biological and functional effects. 4.2x00a0;The degree of deacetylation (% DA) of water-soluble chitosan salts can be determined by 1H nuclear magnetic resonance spectroscopy (1H NMR). Several workers have reported on the NMR determination of chemical composition and sequential arrangement of monomer units in chitin and chitosan. The test method described is primarily based on the work of Vx00e5;rum et al. (1991),5 which represents the first publication on routine determination of chemical composition in chitosans by solution state 1H NMR spectroscopy. This test method is applicable for determining the % DA of chitosan chloride and chitosan glutamate salts. It is a simple, rapid, and suitable method for routine use. Quantitative 1H NMR spectroscopy reports directly on the relative concentration of chemically distinct protons in the sample, consequently, no assumptions, calibration curves or calculations other than determination of relative signal intensity ratios are necessary. 4.3x00a0;In order to obtain well-resolved NMR spectra, depolymerization of chitosans to a number average degree of polymerization (DPn) of ~15 to 30 is required. This reduces the viscosity and increases the mobility of the molecules. Although there are several options for depolymerization of chitosans, the most convenient procedure is that of nitrous acid degradation in deuterated water. The reaction is selective, stoichiometric with respect to GlcN, rapid, and easily controlled (Allan amp; Peyron, 1995).6 The reaction selectively cleaves after a GlcN-residue, transforming it into 2,5-anhydro-D-mannose (chitose), consequently, depletion of GlcN after depolymerization is expected. On the other hand, the chitose unit displays characteristic 1H NMR signals the intensity of which may be estimated and utilized in the calculation of % DA, eliminating the need for correction factors. Using the intensity of the chitose signals, the number average degree of polymerization can easily be calculated as a control of the depolymerization. 4.4x00a0;Samples are equilibrated and analyzed at a temperature of 90 x00b1; 1x00b0;C. Elevated sample temperature contributes to reducing sample viscosity and repositions the proton signal of residual water to an area outside that of interest. While samples are not stored at 90x00b0;C but only analyzed at this elevated temperature, the NMR tubes should be sealed with a stopper to avoid any evaporation. At a sample pH* of 3.8-4.3 (see 6.1.5 below), artifactual deacetylation of the sample does not occur during the short equilibration and analysis time. 4.5x00a0;A general description of NMR can be found in lt;761gt; of the USP 35-NF30. 1.1x00a0;This test method covers the determination of the degree of deacetylation in chitosan and chitosan salts intended for use in biomedical and pharmaceutical applications as well as in Tissue Engineered Medical Products (TEMPs) by high-resolution prot......
信息：ICS：11.120.20 (Wound dressings. Compresses); 71.040.50 CCS： 发布：2003 实施：
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