



水中汞的测定标准相关标准参考信息
ASTM D6414-23 用酸萃取或湿式氧化/冷蒸气原子吸收法测定煤和煤燃烧残留物中总汞的标准试验方法
简介:
信息:ICS:73.040 CCS: 发布:2023-01-01 实施:
BS EN 15853-2010 环境空气质量.汞沉积物测定标准方法
简介:This European Standard specifies a method for the determination of the total deposition of mercury. Thisstandard can be used within the framework of the European Council Directive on Ambient Air QualityAssessment and Management and Directive 2004/107/EC. Performance requirements with which the methodshould comply are specified in this European Standard. The performance characteristics of the method weredetermined in comparative field validation tests carried out at two European locations.This European Standard is applicable to background sites that are in accordance with the requirements ofDirective 2004/107/EC and to urban and industrial sites.This standard allows the sampling of deposition using cylindrical deposition gauges, and analysis using ColdVapour Atomic Absorption Spectrometry (CVAAS) or Cold Vapour Atomic Fluorescence Spectrometry(CVAFS) following existing harmonised and standardised procedures. The standard is applicable for themeasurement of mercury in deposition between 1 ng/(m2·d) and 100 ng/(m2·d).The standard is validated for the deposition range listed in Table 1.
信息:ICS:13.040.20 CCS:Z15;Z50 发布:2010-06-30 实施:2010-06-30
ASTM D4284-2003 使用压汞法测定催化剂的孔隙空间分布的标准试验方法
简介:1.1 This test method covers the determination of the pore volume distributions of catalysts and catalyst supports by the method of mercury intrusion porosimetry. The range of apparent diameters of pores for which it is applicable is fixed by the operant pressure range of the testing instrument. This range is typically between apparent pore entrance diameters of about 100 and 0.003 m (3 nm).1.2 The values stated in SI units are to be regarded as standard. The values given in parentheses are provided for information only.1.3 This standard does not purport to address all of the safety problems, 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. Specific hazard statements are given in Section 8.
信息:ICS:71.040.30 (Chemical reagents) CCS: 发布:2003 实施:
ASTM D3624-85a(2022) 用原子吸收光谱法测定涂料中低浓度汞的标准试验方法
简介:
信息:ICS:87.040 CCS: 发布:2022-06-01 实施:
EN 15852-2010 环境空气质量.气态汞总量测定的标准方法
简介:This European Standard specifies a standard method for determining total gaseous mercury (TGM) in ambient air using cold vapour atomic absorption spectrometry (CVAAS), or cold vapour atomic fluorescence spectrometry (CVAFS).This European Standard is applicable to background sites that are in accordance with the requirements of Directive 2004/107/EC and to urban and industrial sites. The performance characteristics of the method have been determined in comparative field validation tests carried out at four European locations: two background and two industrial sites. The method was tested for two months at each site over a period of twelve months using automated equipment currently used in Europe for determination of TGM in ambient air. The working range of the method covers the range of ambient air concentrations from those found at background sites, typically less than 2 ng/m3, up to those found at industrial sites where higher concentrations are expected. A maximum daily average up to 300 ng/m3 was measured during the field trials. Results are reported as the average mass of TGM per volume of air at 293,15 K and 101,325 kPa, measured over a specified time period, in nanograms per cubic metre.
信息:ICS:13.040.20 CCS: 发布:2010-06-01 实施:
ASTM D6414-01 用酸萃取或湿氧化/冷蒸气原子吸收法测定煤和煤燃烧残渣中总汞的标准试验方法
简介:
信息:ICS:73.040 CCS: 发布:2001-10-10 实施:
ASTM D7623-20 使用燃烧金合金和冷汽原子吸收法测定原油中总汞的标准试验方法
简介:
信息:ICS:75.040 CCS: 发布:2020-06-01 实施:
ASTM D3624-85a(2010) 通过原子吸收光谱法测定油漆中汞浓度的标准试验方法
简介:
信息:ICS:87.040 CCS: 发布:2010-06-01 实施:
ASTM D3684-01 用氧弹燃烧/原子吸收法测定煤中总汞的标准试验方法
简介:
信息:ICS:75.160.10 CCS: 发布:2001-10-10 实施:
ASTM D7622-20 使用燃烧和直接冷蒸气原子吸收法测定原油中总汞的标准测试方法与塞曼背景校正
简介:
信息:ICS:75.040 CCS: 发布:2020-06-01 实施:
ASTM D7622-10 使用燃烧和直接冷蒸气原子吸收法测定原油中总汞的标准测试方法与塞曼背景校正
简介:
信息:ICS:75.040 CCS: 发布:2010-05-01 实施:
ASTM D6414-99 用酸萃取或湿氧化/冷蒸气原子吸收法测定煤和煤燃烧残渣中总汞的标准试验方法
简介:
信息:ICS:73.040 CCS: 发布:2001-10-10 实施:
ASTM E2293-19 测定汞用含金属矿石、精矿和相关冶金材料干燥的标准实施规程
简介:
信息:ICS:73.060.99 CCS: 发布:2019-10-01 实施:
ASTM D4404-10 用汞侵入孔隙率测定法测定土壤和岩石的孔隙体积和孔隙体积分布的标准试验方法
简介:
信息:ICS:93.020 CCS: 发布:2010-05-01 实施:
ASTM D3684-94(2000) 用氧弹燃烧/原子吸收法测定煤中总汞的标准试验方法
简介:
信息:ICS:75.160.10 CCS: 发布:2001-10-10 实施:
ASTM D4404-18 用汞侵入孔隙率测定法测定土壤和岩石的孔隙体积和孔隙体积分布的标准试验方法
简介:
信息:ICS:93.020 CCS: 发布:2018-02-01 实施:
ASTM D7622-10e1 使用燃烧和直接冷蒸气原子吸收法测定原油中总汞的标准测试方法与塞曼背景校正
简介:
信息:ICS:75.040 CCS: 发布:2010-05-01 实施:
ASTM D3684-2001 用氧弹燃烧/原子吸收法测定煤中总汞量的标准试验方法
简介:1.1 This test method describes a procedure for the analysis of total mercury in coal. 1.2 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. Specific precautionary statements are given in 8.3.1. 1.3 The values stated in SI units (IEEE/ASTM SI 10) shall be regarded as the standard.
信息:ICS:75.160.10 (Solid fuels) CCS:D21 发布:2001 实施:
ASTM D4284-12(2017)e1 通过汞侵入法测定催化剂和催化剂载体的孔体积分布的标准测试方法
简介:
信息:ICS:71.040.30 CCS: 发布:2017-02-01 实施:
ASTM D7623-10 使用燃烧金合金和冷汽原子吸收法测定原油中总汞的标准试验方法
简介:
信息:ICS:75.040 CCS: 发布:2010-05-01 实施:
ASTM D3684-2001(2006) 用氧弹燃烧/原子吸收法测定煤中总汞量的标准试验方法
简介:The possible emission of mercury that may be found in coal from coal combustion is an environmental concern. When test portions are burned according to this procedure, the total mercury is quantitatively retained and is representative of concentrations in the whole coal.1.1 This test method describes a procedure for the analysis of total mercury in coal.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. Specific precautionary statements are given in 8.3.1.1.2 The values stated in SI units (IEEE/ASTM SI 10) shall be regarded as the standard.
信息:ICS:75.160.10 CCS:D21 发布:2001 实施:
ASTM F2617-15 使用能量色散X射线光谱法测定聚合材料中铬 溴 镉 汞和铅的标准测试方法
简介:
信息:ICS:71.040.50 CCS: 发布:2015-08-01 实施:
ASTM D4404-2010 用汞侵入孔隙率测定法测定土壤和岩石的孔隙空间和孔隙空间分布的标准试验方法
简介:This test method is intended for use in determining the volume and the volume distribution of pores in soil and rock with respect to the apparent diameter of the entrances of the pores. In general, both the size and volume of the pores affects the performance of soil and rock. Thus, the pore volume distribution is useful in understanding soil and rock performance and in identifying a material that can be expected to perform in a particular manner (1, 2). The intrusion process to determine the volume of a pore proceeds from the outside of a specimen toward its center. Comparatively large interior pores can exist that have smaller outside openings as the only means of access. Mercury intrusion porosimetry will incorrectly register the entire volume of these x201C;ink-bottlex201D; pores as having the apparent diameter of the smaller access pores. In a test specimen, exterior specimen pores can exist in addition to intra-specimen pores (see Section 3 for definitions). The inter-fragment pores will vary in size and volume depending on the size and shape of the soil or rock fragments and on the manner in which the fragments are packed together. It is possible that some exterior specimen pores can have the same apparent diameter as some intra-specimen pores. When this occurs, this test method cannot distinguish between them. Thus, the test method yields an intruded pore volume distribution that is in part dependent upon the packing of multifragment specimens. However, most soils and rocks have intra-fragment pores much smaller than the inter-fragment pores. This situation leads to a bi-modal pore size distribution and the distinction between the two classes of pores can then be made (see Figs. 1 and 2). Note 18212;Notwithstanding the statement on precision and bias contained in this test method: The precision of this test method is dependent on the competence of the personnel performing it, and the suitability of the equipment and facilities used. Agencies which meet the criteria of Practice D3740 are generally considered capable of competent and objective testing. Users of this test method are cautioned that compliance with Practice D3740 does not in itself assure reliable testing. Reliable testing depends on several factors; Practice D3740 provides a means of evaluating some of those factors.1.1 This test method covers the determination of the pore volume and the pore volume distributions of soil and rock by the mercury intrusion porosimetry method. The range of apparent diameters of pores for which this test method is applicable is fixed by the operating pressure range of the testing instrument. This range is typically between apparent pore entrance diameters of about 100 x03BC;m and 2.5 nm (0.0025 x03BC;m). Larger pores must be measured by another method. 1.2 Mercury intrusion porosimetry is useful only for measuring pores open to the outside of a soil or rock fragment; mercury intrusion porosimetry will not give the volume of any pores completely enclosed by surrounding solids. This test method will give only the volume of intrudable pores that have an apparent diameter corresponding to a pressure within the pressurizing range of the testing instrument. 1.3 Mercury intrusion may involve the application of high pressures to the specimen. This may result in a temporary or permanent alteration or both in the pore geometry. Generally, soils and rocks are ......
信息:ICS:93.020 CCS:P13 发布:2010 实施:
ASTM F1392-2000 用带汞探针的容量-电压测量法测定硅晶片中净载流子密度分布的标准试验方法
简介:1.1 This test method covers the measurement of net carrier density and net carrier density profiles in epitaxial and polished bulk silicon wafers in the range from about 4 X 10 13 to about 8 X 10 16 carriers/cm (resistivity range from about 0.1 to about 100 [omega][dot]cm in -type wafers and from about 0.24 to about 330 [omega][dot]cm in -type wafers). 1.2 This test method requires the formation of a Schottky barrier diode with a mercury probe contact to an epitaxial or polished wafer surface. Chemical treatment of the silicon surface may be required to produce a reliable Schottky barrier diode (1). The surface treatment chemistries are different for - and -type wafers. This test method is sometimes considered destructive due to the possibility of contamination from the Schottky contact formed on the wafer surface; however, repetitive measurements may be made on the same test specimen. 1.3 This test method may be applied to epitaxial layers on the same or opposite conductivity type substrate. This test method includes descriptions of fixtures for measuring substrates with or without an insulating backseal layer. 1.4 The depth of the region that can be profiled depends on the doping level in the test specimen. Based on data reported by Severin (1) and Grove (2), Fig. 1 shows the relationships between depletion depth, dopant density, and applied voltage together with the breakdown voltage of a mercury silicon contact. The test specimen can be profiled from approximately the depletion depth corresponding to an applied voltage of 1 V to the depletion depth corresponding to the maximum applied voltage (200 V or about 80% of the breakdown voltage, whichever is lower). To be measured by this test method, a layer must be thicker than the depletion depth corresponding to an applied voltage of 2 V. 1.5 This test method is intended for rapid carrier density determination when extended sample preparation time or high temperature processing of the wafer is not practical. Note 1-Test Method F419 is an alternative method for determining net carrier density profiles in silicon wafers from capacitance-voltage measurements. This test method requires the use of one of the following structures: ( ) a gated or ungated p-n junction diode fabricated using either planar or mesa technology or ( ) an evaporated metal Schottky diode. 1.6 This test method provides for determining the effective area of the mercury probe contact using polished bulk reference wafers that have been measured for resistivity at 23176C in accordance with Test Method F84 (Note 2). This test method also includes procedures for calibration of the apparatus for measuring both capacitance and voltage. Note 2-An alternative method of determining the effective area of the mercury probe contact that involves the use of reference wafers whose net carrier density has been measured using fabricated mesa or planar p-n junction diodes or evaporated Schottky diodes is not included in this test method but may be used if agreed upon by the parties to the test. 1.7 This standard does not purport to address all of the safety problems, 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. Specific hazard statements are given in 7.1 (Note 4), 7.2, 7.10.3 (Note 8), 8.2, 11.5.1 (Note 18), 11.6.3, and 11.6.5.
信息:ICS:29.045 (Semiconducting materials) CCS:H82 发布:2000 实施:
ASTM D3624-85a(2015) 通过原子吸收光谱法测定油漆中汞浓度的标准试验方法
简介:
信息:ICS:87.040 CCS: 发布:2015-06-01 实施:
ASTM E2293-03(2008)e1 测定汞用含金属矿石、精矿和相关冶金材料干燥的标准实施规程
简介:
信息:ICS:73.060.99 CCS: 发布:2008-11-01 实施:
ASTM D3624-85a(1999) 通过原子吸收光谱法测定油漆中汞浓度的标准试验方法
简介:
信息:ICS:87.040 CCS: 发布:1999-05-10 实施:
ASTM D7623-10(2015) 使用燃烧金合金和冷汽原子吸收法测定原油中总汞的标准试验方法
简介:
信息:ICS:75.040 CCS: 发布:2015-04-01 实施:
ASTM F2617-08e1 使用能量色散X射线光谱法测定聚合材料中铬 溴 镉 汞和铅的标准测试方法
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信息:ICS:71.040.50 CCS: 发布:2008-08-15 实施:
ASTM D4404-84(1998)e1 用汞侵入孔隙率测定法测定土壤和岩石的孔隙体积和孔隙体积分布的标准试验方法
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信息:ICS:93.020 CCS: 发布:1998-12-10 实施:
ASTM D7622-10(2015) 使用燃烧和直接冷蒸气原子吸收法测定原油中总汞的标准测试方法与塞曼背景校正
简介:
信息:ICS:75.040 CCS: 发布:2015-04-01 实施:
ASTM F2617-08 使用能量色散X射线光谱法测定聚合材料中铬 溴 镉 汞和铅的标准测试方法
简介:
信息:ICS:71.040.50 CCS: 发布:2008-08-15 实施:
NF V03-617-2-1997 淀粉及其制品.重金属含量.第1部分:原子吸收光谱法测定汞含量(欧洲标准EN ISO 11212-2)
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信息:ICS:67.180.20 CCS:X11 发布:1997-05-01 实施:1997-05-20
ASTM D6414-14 通过酸提取或湿氧化/冷蒸气原子吸收法测定煤和煤燃烧残渣中总汞的标准试验方法
简介:
信息:ICS:73.040 CCS: 发布:2014-03-01 实施:
ASTM D4284-07 用压汞孔率测定法测定催化剂孔容分布的标准试验方法
简介:
信息:ICS:71.040.30 CCS: 发布:2007-04-01 实施:
ASTM D3684-1994(2000) 用氧弹燃烧/原子吸收法测定煤中总汞量的标准试验方法
简介:1.1 This test method describes a procedure for the analysis of total mercury in coal. 1.2 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. Specific precautionary statements are given in 8.3.1. 1.3 The values stated in SI units (IEEE/ASTM SI 10) shall be regarded as the standard.
信息:ICS:75.160.10 (Solid fuels) CCS:D21 发布:1994 实施:
ASTM E2293-03(2013) 测定汞用含金属矿石、精矿和相关冶金材料干燥的标准实施规程
简介:
信息:ICS:73.060.99 CCS: 发布:2013-11-01 实施:
ASTM D6414-01(2006) 通过酸提取或湿氧化/冷蒸气原子吸收法测定煤和煤燃烧残渣中总汞的标准试验方法
简介:
信息:ICS:73.040 CCS: 发布:2006-04-01 实施:
PN C87070-01-1992 氮磷肥中砷化物;镉;铅和汞的肥料试验测定的概要和标准范围
简介:Przedmiotem normy s? postanowienia ogólne oraz zakres stosowania metod ozna-czania zawarto?ci arsenu, kadmu, o?owiu I rt?ci w nawozach sztucznych azotowych I fosforowych.
信息:ICS: CCS: 发布:1992 实施:
ASTM D4284-12 通过汞侵入法测定催化剂和催化剂载体的孔体积分布的标准测试方法
简介:
信息:ICS:71.040.30 CCS: 发布:2012-05-01 实施:
ASTM D3624-85a(2005) 通过原子吸收光谱法测定油漆中汞浓度的标准试验方法
简介:
信息:ICS:87.040 CCS: 发布:2005-01-01 实施:
CJ 26.18-1991 城市污水水质检验方法标准 汞的测定 冷原子吸收光度法
简介:
信息:ICS:无 CCS:建设部 发布:1991-07-27 实施:1992-02-01
ASTM D6722-2011 直接燃烧法测定煤和煤燃烧残渣中总汞量的标准试验方法
简介:The emission of mercury during coal combustion can be an environmental concern. When representative test portions are analyzed according to this procedure, the total mercury is representative of concentrations in the sample.1.1 These test methods cover procedures to determine the total mercury content in a sample of coal or coal combustion residue. 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 Warning8212;Mercury has been designated by EPA and many state agencies as a hazardous material that can cause central nervous system, kidney, and liver damage. Mercury, or its vapor, may be hazardous to health and corrosive to materials. Caution should be taken when handling mercury and mercury-containing products. See the applicable product Material Safety Data Sheet (MSDS) for details and EPAx2019;s website (http://www.epa.gov/mercury/faq.htm) for additional information. Users should be aware that selling mercury or mercury-containing products, or both, in your state may be prohibited by state law. 1.4 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:71.060.10 (Chemical elements) CCS:D21 发布:2011 实施:
ASTM D4404-84(2004) 用汞侵入孔隙率测定法测定土壤和岩石的孔隙体积和孔隙体积分布的标准试验方法
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信息:ICS:93.020 CCS: 发布:2004-07-01 实施:
ASTM D3624-1985a(2005) 用原子吸收分光光度法测定涂料中低浓度汞的标准试验方法
简介:The permissible level of heavy metals in certain coatings is specified by governmental regulatory agencies. This test method provides a fully documented procedure for determining low concentrations of mercury present in both water and solvent-reducible coatings to determine compliance.1.1 This test method covers the determination of the content of mercury in the range between 10 and 1000 ppm (mg/kg) present in liquid coatings, coatings vehicles, or in dried films obtained from previously coated substrates. There is no reason to believe that higher levels could not be determined by this test method, provided that appropriate dilutions and adjustments in specimen size and reagent quantities are made.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. Specific hazard statements are given in Section and .
信息:ICS:87.040 (Paints and varnishes) CCS:G50 发布:1985 实施:
DIN EN 15853-2010 环境空气质量.汞沉积物测定用标准方法.德文版本EN 15853-2010
简介:This European Standard specifies a method for the determination of the total deposition of mercury. This standard can be used within the framework of the European Council Directive on Ambient Air Quality Assessment and Management and Directive 2004/107/EC. Performance requirements with which the method has to comply are specified in this European Standard. The performance characteristics of the method were determined in comparative field validation tests carried out at two European locations. This European Standard is applicable to background sites that are in accordance with the requirements of Directive 2004/107/EC and to urban and industrial sites. This standard allows the sampling of deposition using cylindrical deposition gauges, and analysis using Cold Vapour Atomic Absorption Spectrometry (CVAAS) or Cold Vapour Atomic Fluorescence Spectrometry (CVAFS) following existing harmonised and standardised procedures. The standard is applicable for the measurement of mercury in deposition between 1 ng/(m ? d) and 100 ng/(m ? d).
信息:ICS:13.040.20 CCS:Z15 发布:2010-11 实施:
ASTM E2293-03 测定汞用含金属矿石、精矿和相关冶金材料干燥的标准实施规程
简介:
信息:ICS:73.060.99 CCS: 发布:2003-06-10 实施:
ASTM D3624-1985a(2010) 用原子吸收分光光度法测定涂料中低浓度汞的标准试验方法
简介:The permissible level of heavy metals in certain coatings is specified by governmental regulatory agencies. This test method provides a fully documented procedure for determining low concentrations of mercury present in both water and solvent-reducible coatings to determine compliance.1.1 This test method covers the determination of the content of mercury in the range between 10 and 1000 ppm (mg/kg) present in liquid coatings, coatings vehicles, or in dried films obtained from previously coated substrates. There is no reason to believe that higher levels could not be determined by this test method, provided that appropriate dilutions and adjustments in specimen size and reagent quantities are made. 1.2 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. Specific hazard statements are given in Section 7 and 9.1.1.
信息:ICS:87.040 CCS:G51 发布:1985 实施:
DIN EN 15852-2010 环境空气质量.气态汞总量的测定用标准方法.德文版本EN 15852-2010
简介:
信息:ICS:13.040.20 CCS:Z15 发布:2010-11 实施:
ASTM D4284-03 用压汞孔率测定法测定催化剂孔容分布的标准试验方法
简介:
信息:ICS:71.040.30 CCS: 发布:2003-03-10 实施:
简介: 信息:
NF X43-351-2010 环境空气质量.气态汞总量测定的标准方法
简介:
信息:ICS:13.040.20 CCS:Z15 发布:2010-07-01 实施:2010-07-30
ASTM E2293-2003(2008)e1 汞测定用含金属矿、精矿和相关冶金材料干燥的标准实施规程
简介:This practice is primarily to be used to dry samples for the determination of mercury test portions, and it should not be used for the determination of sample moisture content. Most sample preparation methods prescribe drying the samples at 105 x00B0;C, until a constant mass is obtained. The moisture content is determined as the percentage mass loss on drying. However, since mercury can volatize from samples at the normally utilized temperature, samples that are to be used for mercury determination shall be dried at 60 x00B0;C (see Practice E 877, ISO 9599, ISO 12743, and ISO 10251). It is assumed that all who use this practice will be trained analysts capable of performing skillfully and safely. It is expected that work will be performed in a properly equipped laboratory under appropriate quality control practices such as those described in Guide E 882.1.1 This practice covers the sample drying step for the determination of mercury in ores, concentrates, and related metallurgical materials. 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:73.060.99 CCS:D04 发布:2003 实施:
简介: 信息:
NF X43-352-2010 环境空气质量.测定汞沉积物的标准方法
简介:
信息:ICS:13.040.20 CCS:Z15 发布:2010-07-01 实施:2010-07-30
ASTM E2293-2003(2013) 汞测定用含金属矿, 精矿和相关冶金材料干燥的标准实施规程
简介:5.1x00a0;This practice is primarily to be used to dry samples for the determination of mercury test portions, and it should not be used for the determination of sample moisture content. Most sample preparation methods prescribe drying the samples at 1058201;x00b0;C, until a constant mass is obtained. The moisture content is determined as the percentage mass loss on drying. However, since mercury can volatize from samples at the normally utilized temperature, samples that are to be used for mercury determination shall be dried at 608201;x00b0;C (see Practice E877, ISO8201;9599, ISO8201;12743, and ISO8201;10251). 5.2x00a0;It is assumed that all who use this practice will be trained analysts capable of performing skillfully and safely. It is expected that work will be performed in a properly equipped laboratory under appropriate quality control practices such as those described in Guide E882. 1.1x00a0;This practice covers the sample drying step for the determination of mercury in ores, concentrates, and related metallurgical materials. 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:73.060.99 (Other metalliferrous minerals) CCS: 发布:2003 实施:
简介: 信息:
BS EN 15853-2010 环境空气质量.汞沉积物测定标准方法
简介:This European Standard specifies a method for the determination of the total deposition of mercury. Thisstandard can be used within the framework of the European Council Directive on Ambient Air QualityAssessment and Management and Directive 2004/107/EC. Performance requirements with which the methodshould comply are specified in this European Standard. The performance characteristics of the method weredetermined in comparative field validation tests carried out at two European locations.This European Standard is applicable to background sites that are in accordance with the requirements ofDirective 2004/107/EC and to urban and industrial sites.This standard allows the sampling of deposition using cylindrical deposition gauges, and analysis using ColdVapour Atomic Absorption Spectrometry (CVAAS) or Cold Vapour Atomic Fluorescence Spectrometry(CVAFS) following existing harmonised and standardised procedures. The standard is applicable for themeasurement of mercury in deposition between 1 ng/(m2·d) and 100 ng/(m2·d).The standard is validated for the deposition range listed in Table 1.
信息:ICS:13.040.20 CCS:Z15;Z50 发布:2010-06-30 实施:2010-06-30
ASTM E2293-2003 汞测定用含金属矿、精矿和相关冶金材料干燥的标准规程
简介:This practice is primarily to be used to dry samples for the determination of mercury test portions, and it should not be used for the determination of sample moisture content. Most sample preparation methods prescribe drying the samples at 105x00B0;C, until a constant mass is obtained. The moisture content is determined as the percentage mass loss on drying. However. since mercury can volatize from samples at the normally utilized temperature, samples that are to be used for mercury determination shall be dried at 60x00B0;C (See Practice E 877, Method ISO 9599, Method ISO 1273, and Method ISO 10251). It is assumed that all who use this practice will be trained analysts capable of performing skillfully and safely. It is expected that work will be performed in a properly equipped laboratory under appropriate quality control practices such as those described in Guide E 882.1.1 This practice covers the sample drying step for the determination of mercury in ores, concentrates and related metallurgical materials.1.2 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:73.060.99 (Other metalliferrous minerals) CCS:D04 发布:2003 实施:
简介: 信息:
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