紫外透射率测定标准检测标准紫外透射率测定标准-中析研究所检测

(CMA)

(CNAS)

(ISO)

(高新技术企业)

紫外透射率测定标准相关标准参考信息

ASTM E1348-22 用半球几何分光光度法测定透射率和颜色的标准试验方法
简介：
信息：ICS：17.180.20 CCS：发布：2022-10-01 实施：

ASTM D4631-95(2000) 用压力脉冲技术现场测量测定低渗透性岩石的透射率和贮存率的标准试验方法
简介：
信息：ICS：93.020 CCS：发布：2000-01-01 实施：

ASTM E1175-1987(2015) 采用大直径积分球测定材料的太阳能或光适应反射率, 透射率和吸收率的标准试验方法
简介：5.1x00a0;To overcome the inadequacies of conventional spectrophotometric measurement techniques when nonhomogeneous materials are measured, a large integrating sphere may be used.4,5 Since the beam employed in such spheres is large in comparison to the disparaties of the materials being tested, the nonisotropic nature of the specimen being measured is essentially averaged, or integrated out of the measurement, in a single experimental determination. 5.2x00a0;Solar and photopic optical properties may be measured either with monofunctional spheres individually tailored for the measurement of either transmittance5 or reflectance, or may be measured with a single multifunctional sphere that is employed to measure both transmittance and reflectance.4 5.3x00a0;A multifunctional sphere is used for making total solar transmittance measurements in both a directional-hemispherical and a directional-directional mode. The solar absorptance can be evaluated in a single measurement as one minus the sum of the directional hemispherical reflectance and transmittance. When a sample at the center of the sphere is supported by its rim, the sum of the reflectance and transmittance can be measured as a function of the angle of incidence. The solar absorptance is then one minus the measured absorptance plus transmittance. 1.1x00a0;This test method covers the measurement of the absolute total solar or photopic reflectance, transmittance, or absorptance of materials and surfaces. Although there are several applicable test methods employed for determining the optical properties of materials, they are generally useful only for flat, homogeneous, isotropic specimens. Materials that are patterned, textured, corrugated, or are of unusual size cannot be measured accurately using conventional spectrophotometric techniques, or require numerous measurements to obtain a relevant optical value. The purpose of this test method is to provide a means for making accurate optical property measurements of spatially nonuniform materials. 1.2x00a0;This test method is applicable to large specimens of materials having both specular and diffuse optical properties. It is particularly suited to the measurement of the reflectance of opaque materials and the reflectance and transmittance of semitransparent materials including corrugated fiber-reinforced plastic, composite transparent and translucent samples, heavily textured surfaces, and nonhomogeneous materials such as woven wood, window blinds, draperies, etc. 1.3x00a0;The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 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：17.180.20 CCS：F12 发布：1987 实施：

ASTM E1175-87(2022) 使用大直径积分球测定材料的太阳或光反射、透射率和吸收率的标准试验方法
简介：
信息：ICS：17.180.20 CCS：发布：2022-10-01 实施：

ASTM D5269-96 通过该方法测定非渗透含水层透射率的标准试验方法
简介：
信息：ICS： CCS：发布：1996-10-10 实施：

ASTM E1175-1987(R2015) 使用大直径积分球测定材料的太阳或光反射、透射率和吸收率的标准试验方法
简介：
信息：ICS：17.180.20 CCS：发布：0000-00-00 实施：0000-00-00

ASTM D4716/D4716M-22 用恒定水头测定土工合成材料单位宽度（平面内）流率和液压透射率的标准试验方法
简介：
信息：ICS：59.080.70 CCS：发布：2022-05-01 实施：

ASTM D4104-96 标准试验方法（分析程序）用过渡阻尼测井法测定非泄漏承压含水层的透射率（对头部瞬时变化的响应）
简介：
信息：ICS：13.060.10 CCS：发布：1996-10-10 实施：

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ASTM D4106-20 用Theis非平衡法测定无渗漏承压含水层的透射率和储存系数的标准实施规程（分析程序）
简介：
信息：ICS：93.160 CCS：发布：2020-06-01 实施：

ASTM D4630-96 用恒定压头注入试验现场测量法测定低渗透岩石的透射率和储存系数的标准试验方法
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信息：ICS： CCS：发布：1996-10-10 实施：

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ASTM D5785/D5785M-20 用欠阻尼井对水头瞬时变化的响应测定承压无渗漏含水层透射率的标准实施规程（分析程序）（段塞试验）
简介：
信息：ICS：93.160 CCS：发布：2020-05-15 实施：

ASTM D5269-96(2002) 通过该方法测定非渗透含水层透射率的标准试验方法
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信息：ICS：93.160 CCS：发布：1996-10-10 实施：

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ASTM D4105/D4105M-20 用改进的Theis非平衡法测定无渗漏承压含水层的透射率和储存系数的标准实施规程（分析程序）
简介：
信息：ICS：93.160 CCS：发布：2020-05-15 实施：

ASTM D4105-96(2002) 用改进的Theis非平衡法测定无渗漏承压含水层的透射率和储存系数的标准试验方法（分析程序）
简介：
信息：ICS：93.160 CCS：发布：1996-10-10 实施：

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ASTM D4630-19 用恒定压头注入试验现场测量法测定低渗透岩石的透射率和储存系数的标准试验方法
简介：
信息：ICS：07.060 CCS：发布：2019-02-01 实施：

ASTM D4106-96(2002) 用Theis非平衡法测定无渗漏承压含水层的透射率和储存系数的标准试验方法（分析程序）
简介：
信息：ICS：93.160 CCS：发布：1996-10-10 实施：

简介： 信息：

ASTM D4631-18 用压力脉冲技术现场测量测定低渗透性岩石的透射率和贮存率的标准试验方法
简介：
信息：ICS：07.040 CCS：发布：2018-07-15 实施：

ASTM D4630-96(2002) 用恒定压头注入试验现场测量法测定低渗透岩石的透射率和储存系数的标准试验方法
简介：
信息：ICS：07.060 CCS：发布：1996-10-10 实施：

简介： 信息：

ASTM D4104-17 标准试验方法（分析程序）用过渡阻尼测井法测定非泄漏承压含水层的透射率（对头部瞬时变化的响应）
简介：
信息：ICS：13.060.10 CCS：发布：2017-11-01 实施：

ASTM D4105-96 用改进的Theis非平衡法测定无渗漏承压含水层的透射率和储存系数的标准试验方法（分析程序）
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信息：ICS： CCS：发布：1996-10-10 实施：

简介： 信息：

ASTM D5269-15 通过该方法测定非渗透含水层透射率的标准试验方法
简介：
信息：ICS：93.160 CCS：发布：2015-04-15 实施：

ASTM D4106-96 用Theis非平衡法测定无渗漏承压含水层的透射率和储存系数的标准试验方法（分析程序）
简介：
信息：ICS： CCS：发布：1996-10-10 实施：

简介： 信息：

ASTM D5785/D5785M-2015 通过低阻尼井回应顶部瞬间改变 (微水试验) 测定非越流性承压含水层透射率的标准试验方法 (分析程序)
简介：Note 2: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 assure reliable results. Reliable results depend on many factors; Practice D3740 provides a means of evaluating some of those factors. 6.1x00a0;The assumptions of the physical system are given as follows: 6.1.1x00a0;The aquifer is of uniform thickness and confined by impermeable beds above and below. 6.1.2x00a0;The aquifer is of constant homogeneous porosity and matrix compressibility and of homogeneous and isotropic hydraulic conductivity. 6.1.3x00a0;The origin of the cylindrical coordinate system is taken to be on the well-bore axis at the top of the aquifer. 6.1.4x00a0;The aquifer is fully screened. 6.2x00a0;The assumptions made in defining the momentum balance are as follows: 6.2.1x00a0;The average water velocity in the well is approximately constant over the well-bore section. 6.2.2x00a0;Flow is laminar and frictional head losses from flow across the well screen are negligible. 6.2.3x00a0;Flow through the well screen is uniformly distributed over the entire aquifer thickness. 6.2.4x00a0;Change in momentum from the water velocity changing from radial flow through the screen to vertical flow in the well are negligible. 6.2.5x00a0;The system response is an exponentially decaying sinusoidal function. 1.1x00a0;This test method covers determination of transmissivity from the measurement of the damped oscillation about the equilibrium water level of a well-aquifer system to a sudden change of water level in a well. Underdamped response of water level in a well to a sudden change in water level is characterized by oscillatory fluctuation about the static water level with a decrease in the magnitude of fluctuation and recovery to initial water level. Underdamped response may occur in wells tapping highly transmissive confined aquifers and in deep wells having long water columns. 1.2x00a0;This analytical procedure is used in conjunction with the field procedure Test Method D4044 for collection of test data.
信息：ICS：93.160 CCS：发布：2015 实施：

ASTM D5270-1996(2002) 测定有限的,非越流性,封闭含水层透射率和蓄水系数的标准试验方法
简介：Assumptions: 5.1.1 The well discharges at a constant rate. 5.1.2 Well is of infinitesimal diameter and is open through the full thickness of the aquifer. 5.1.3 The nonleaky confined aquifer is homogeneous, isotropic, and areally extensive except where limited by linear boundaries. 5.1.4 Discharge from the well is derived initially from storage in the aquifer; later, movement of water may be induced from a constant-head boundary into the aquifer. 5.1.5 The geometry of the assumed aquifer and well are shown in Fig. 1 or Fig. 2. 5.1.6 Boundaries are vertical planes, infinite in length that fully penetrate the aquifer. No water is yielded to the aquifer by impermeable boundaries, whereas recharging boundaries are in perfect hydraulic connection with the aquifer. 5.1.7 Observation wells represent the head in the aquifer; that is, the effects of wellbore storage in the observation wells are negligible. Implications of Assumptions: 5.2.1 Implicit in the assumptions are the conditions of a fully-penetrating control well and observation wells of infinitesimal diameter in a confined aquifer. Under certain conditions, aquifer tests can be successfully analyzed when the control well is open to only part of the aquifer or contains a significant volume of water or when the test is conducted in an unconfined aquifer. These conditions are discussed in more detail in Test Method D 4105. 5.2.2 In cases in which this test method is used to locate an unknown boundary, a minimum of three observation wells is needed. If only two observation wells are available, two possible locations of the boundary are defined, and if only one observation well is used, a circle describing all possible locations of the image well is defined. 5.2.3 The effects of a constant-head boundary are often indistinguishable from the effects of a leaky, confined aquifer. Therefore, care must be taken to ensure that a correct conceptual model of the system has been created prior to analyzing the test. See Guide D 4043.1.1 This test method covers an analytical procedure for determining the transmissivity, storage coefficient, and possible location of boundaries for a confined aquifer with a linear boundary. This test method is used to analyze water-level or head data from one or more observation wells or piezometers during the pumping of water from a control well at a constant rate. This test method also applies to flowing artesian wells discharging at a constant rate. With appropriate changes in sign, this test method also can be used to analyze the effects of injecting water into a control well at a constant rate.1.2 The analytical procedure in this test method is used in conjunction with the field procedure in Test Method D 4050.1.3 Limitations8212;The valid use of this test method is limited to determination of transmissivities and storage coefficients for aquifers in hydrogeologic settings with reasonable correspondence to the assumptions of the Theis nonequilibrium method (see Test Method D 4106) (see 5.1), except that the aquifer is limited in areal extent by a linear boundary that fully penetrates the aquifer. The boundary is assumed to be either a constant-head boundary (equivalent to a stream or lake that hydraulically fully penetrates the aquifer) or a no-flow (impermeable) boundary (equivalent to a contact with a significantly less permeable rock unit). The Theis nonequilibrium method is described in Test Methods D 4105 and D 4106.1.4 The values stated in SI units are to be regarded as standard.1.5 This ......
信息：ICS：13.060.10 (Water of natural resources) CCS：P13 发布：1996 实施：

简介： 信息：

ASTM D5855/D5855M-2015 使用自喷井中恒定下降法测定非越流性或者越流性承压含水层透射率和存储系数的标准试验方法 (分析程序)
简介：Note 7: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 assure reliable results. Reliable results depend on many factors; Practice D3740 provides a means of evaluating some of those factors. 5.1x00a0;Assumptionsx2014;Leaky Aquifer:x00a0; 5.1.1x00a0;Drawdown (sW) in the control well is constant, 5.1.2x00a0;Well is infinitesimal diameter and fully penetrates aquifer, 5.1.3x00a0;The aquifer is homogeneous, isotropic, and areally extensive, and 5.1.4x00a0;The control well is 1008201;% efficient. 5.2x00a0;Assumptionsx2014;Nonleaky Aquifer:x00a0; 5.2.1x00a0;Drawdown (sW) in the control well is constant, 5.2.2x00a0;Well is infinitesimal diameter and fully penetrates aquifer, 5.2.3x00a0;The aquifer is homogeneous, isotropic, and areally extensive, 5.2.4x00a0;Discharge from the well is derived exclusively from storage in the nonleaky aquifer, and 5.2.5x00a0;The control well is 1008201;% efficient. 5.3x00a0;Implications of Assumptions:x00a0; 5.3.1x00a0;The assumptions are applicable to confined aquifers and fully penetrating control wells. However, this test method may be applied to partially penetrating wells where the method may provide an estimate of hydraulic conductivity for the aquifer adjacent to the open interval of the well if the horizontal hydraulic conductivity is significantly greater than the vertical hydraulic conductivity. 5.3.2x00a0;Values obtained for storage coefficient are less reliable than the values calculated for transmissivity. Storage coefficient values calculated from control well data are not reliable. 1.1x00a0;This test method covers an analytical solution......
信息：ICS：13.060.10 CCS：发布：2015 实施：

ASTM D5269-1996(2008) 用泰斯复原法测定非漏泄承压含水层透射率的标准试验方法
简介：Assumptions: The well discharges at a constant rate, Q, or at steps of constant rate Q1, Q2 ... Qn. Well is of infinitesimal diameter and is open through the full thickness of the aquifer. The nonleaky aquifer is homogeneous, isotropic, and areally extensive. Discharge from the well is derived exclusively from storage in the aquifer. The geometry of the assumed aquifer and well are shown in Fig. 1. Implications of Assumptions: Implicit in the assumptions are the conditions of radial flow. Vertical flow components are induced by a control well that partially penetrates the aquifer, that is, not open to the aquifer through the full thickness of the aquifer. If vertical flow components are significant, the nearest partially penetrating observation well should be located at a distance, r, beyond which vertical flow components are negligible. See 5.2.1 of Test Method D 4106 for assistance in determining the minimum distance to partially penetrating observation wells and piezometers. The Theis method assumes the control well is of infinitesimal diameter. The storage in the control well may adversely affect drawdown measurements obtained in the early part of the test. See 5.2.2 of Test Method D 4106 for assistance in determining the duration of the effects of well-bore storage on drawdown. Application of Theis Recovery Method for Unconfined Aquifers: Although the assumptions are applicable to artesian or confined conditions, the Theis solution may be applied to unconfined aquifers if (A) drawdown is small compared with the saturated thickness of the aquifer or if the drawdown is corrected for reduction in thickness of the aquifer and (B) the effects of delayed gravity yield are small. See 5.2.3 of Test Method D 4106 for guidance in treating reduction in saturated thickness and delayed gravity drainage in unconfined aquifers. FIG. 1 Cross Section Through a Discharging Well in a Nonleaky Aquifer1.1 This test method covers an analytical procedure for determining the transmissivity of a confined aquifer. This test method is used to analyze data from the recovery of water levels following pumping or injection of water to or from a control well at a constant rate. 1.2 The analytical procedure given in this test method is used in conjunction with the field procedure in Test Method D 4050. 1.3 Limitations8212;The valid use of the Theis recovery method is limited to determination of transmissivities for aquifers in hydrogeologic settings with reasonable correspondence to the assumptions of the Theis theory (see 5.1). 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：93.160 (Hydraulic construction) CCS：P13 发布：1996 实施：

简介： 信息：

ASTM D4104-96(2010)e1 标准试验方法（分析程序）用过渡阻尼测井法测定非泄漏承压含水层的透射率（对头部瞬时变化的响应）
简介：
信息：ICS：13.060.10 CCS：发布：2010-08-01 实施：

ASTM D5269-1996 用泰斯复原法测定非越流性封闭含水层透射率的标准试验方法
简介：1.1 This test method covers an analytical procedure for determining the transmissivity of a confined aquifer. This test method is used to analyze data from the recovery of water levels following pumping or injection of water to or from a control well at a constant rate. 1.2 The analytical procedure given in this test method is used in conjunction with the field procedure in Test Method D4050. 1.3 Limitations -The valid use of the Theis recovery method is limited to determination of transmissivities for aquifers in hydrogeologic settings with reasonable correspondence to the assumptions of the Theis theory (see 5.1). 1.4 The values stated in SI units are to be regarded as standard. 1.5 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： CCS：P13 发布：1996 实施：

简介： 信息：

ASTM D5269-96(2008) 通过该方法测定非渗透含水层透射率的标准试验方法
简介：
信息：ICS：93.160 CCS：发布：2008-09-15 实施：

ASTM D5269-1996(2002) 用泰斯复原法测定非越流性封闭含水层透射率的标准试验方法
简介：1.1 This test method covers an analytical procedure for determining the transmissivity of a confined aquifer. This test method is used to analyze data from the recovery of water levels following pumping or injection of water to or from a control well at a constant rate.1.2 The analytical procedure given in this test method is used in conjunction with the field procedure in Test Method D 4050.1.3 LimitationsThe valid use of the Theis recovery method is limited to determination of transmissivities for aquifers in hydrogeologic settings with reasonable correspondence to the assumptions of the Theis theory (see 5.1).1.4 The values stated in SI units are to be regarded as standard.1.5 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：93.160 (Hydraulic construction) CCS：P13 发布：1996 实施：

简介： 信息：

ASTM D4716-2008(2013) 使用恒定压头测定土工合成织物(在平面中)单位宽度流速和液压透射率的标准试验方法
简介：5.1x00a0;This test method is intended either as an index test or as a performance test used to determine and compare the flow rate per unit width of one or several candidate geosynthetics under specific conditions. 5.2x00a0;This test method may be used as an index test for acceptance testing of commercial shipments of geosynthetics but caution is advised since information on between-laboratory precision of this test method is incomplete. Comparative tests as directed in 5.2.1 may be advisable. 5.2.1x00a0;In case of a dispute arising from differences in reported test results when using this test method for acceptance testing of commercial shipments, the purchaser and the supplier should first confirm that the tests were conducted using comparable test parameters including specimen conditioning, normal stress, seating period, hydraulic gradient, test water temperature, etc., then conduct comparative tests to determine if there is a statistical bias between their laboratories. Competent statistical assistance is recommended for the investigation of bias. As a minimum, the two parties should take a group of test specimens that are as homogenous as possible and that are formed from a lot of the material of the type in question. The test specimens should then be randomly assigned in equal numbers to each laboratory for testing. The average results from the two laboratories should be compared using the Studentx0027;s t-test for unpaired data and an acceptable probability level chosen by the two parties before the testing is begun. If bias is found, either its cause must be found and corrected or the purchaser and supplier must agree to interpret future test results in light of the known bias. 1.1x00a0;This test method covers the procedure for determining the flow rate per unit width within the manufactured plane of geosynthetics under varying normal compressive stresses and a constant head. The test is intended primarily as an index test but can be used also as a performance test when the hydraulic gradients and specimen contact surfaces are selected by the user to model anticipated field conditions. 1.2x00a0;This test method is limited to geosynthetics that allow continuous in-plane flow paths to occur parallel to the intended direction of flow. 1.3x00a0;The values stated in SI units are to be regarded as the standard. The values stated in parentheses are provided for information only. 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：59.080.70 (Geotextiles) CCS：W59 发布：2008 实施：

ASTM D5270-1996 测定有限的,非越流性,封闭含水层透射率和蓄水系数的标准试验方法
简介：1.1 This test method covers an analytical procedure for determining the transmissivity, storage coefficient, and possible location of boundaries for a bounded confined aquifer. This test method is used to analyze water-level or head data from one or more observation wells or piezometers during the pumping of water from a control well at a constant rate. This test method also applies to flowing artesian wells discharging at a constant rate. With appropriate changes in sign, this test method also can be used to analyze the effects of injecting water into a control well at a constant rate. 1.2 The analytical procedure in this test method is used in conjunction with the field procedure in Test Method D4050. 1.3 Limitations -The valid use of this test method is limited to determination of transmissivities and storage coefficients for aquifers in hydrogeologic settings with reasonable correspondence to the assumptions of the Theis nonequilibrium method (see Test Method D4106) (see 5.1), except that the aquifer is limited in areal extent by a linear boundary that fully penetrates the aquifer. The boundary is assumed to be either a constant-head boundary (equivalent to a stream or lake that hydraulically fully penetrates the aquifer) or a no-flow (impermeable) boundary (equivalent to a contact with a significantly less permeable rock unit). The Theis nonequilibrium method is described in Test Methods D 4105 and D 4106. 1.4 The values stated in SI units are to be regarded as standard. 1.5 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： CCS：P13 发布：1996 实施：

简介： 信息：

ASTM E2193-2008 单乙二醇的紫外线透射率的标准试验方法(紫外线光谱测定法)
简介：Knowledge of the ultraviolet transmittance of monoethylene glycol is required to establish whether the product meets the requirements of its quality specifications. Dissolved oxygen in organic solvents, such as MEG, forms complexes that shift the solvent absorption from the vacuum ultraviolet range into the measurable UV range (near 190 to 250 nm). Monoethylene glycol has a UV absorption peak at 180 nm. For MEG-oxygen complexes, this peak is shifted to a longer wavelength, thus increasing the absorbability at 220 nm. However, this effect is not observed in water. There is no significant measurable effect due to dissolved oxygen in water that would require nitrogen sparging prior to using for collection of the reference spectrum. Nitrogen sparging and re-measurement of suspect or borderline glycol samples at 220 nm can be used as a tool to rule out or confirm the presence of UV affecting contaminants other than oxygen.1.1 This test method covers a procedure for the determination of the transmittance of monoethylene glycol (1,2-ethanediol; MEG) at wavelengths in the region 220 to 350 nm. The results provide a measure of the purity of the sample with respect to ultraviolet absorbing compounds. 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. 1.4 Review the current Material Safety Data Sheets (MSDS) for detailed information concerning toxicity, first aid procedures, and safety precautions.
信息：ICS：71.040.50 (Physicochemical methods of analysis) CCS：G17 发布：2008 实施：

ASTM D5855-95(2000) 在流动井中用恒定下降法测定承压非渗漏或渗漏含水层的透射率和蓄水系数的标准试验方法（分析程序）
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信息：ICS：13.060.10 CCS：发布：1995-12-10 实施：

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ASTM D4104-96(2004) 标准试验方法（分析程序）用过渡阻尼测井法测定非泄漏承压含水层的透射率（对头部瞬时变化的响应）
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信息：ICS：13.060.10 CCS：发布：2004-11-01 实施：

ASTM D5855-1995(2013) 使用自喷井中恒定下降法测定非越流性或者越流性承压含水层透射率和存储系数的标准试验方法
简介：5.1x00a0;Assumptionsx2014;Leaky Aquifer: 5.1.1x00a0;Drawdown (sW) in the control well is constant, 5.1.2x00a0;Well is infinitesimal diameter and fully penetrates aquifer, 5.1.3x00a0;The aquifer is homogeneous, isotropic, and areally extensive, and 5.1.4x00a0;The control well is 1008201;% efficient. 5.2x00a0;Assumptionsx2014;Nonleaky Aquifer: 5.2.1x00a0;Drawdown (sW) in the control well is constant, 5.2.2x00a0;Well is infinitesimal diameter and fully penetrates aquifer, 5.2.3x00a0;The aquifer is homogeneous, isotropic, and areally extensive, 5.2.4x00a0;Discharge from the well is derived exclusively from storage in the nonleaky aquifer, and 5.2.5x00a0;The control well is 1008201;% efficient. 5.3x00a0;Implications of Assumptions: 5.3.1x00a0;The assumptions are applicable to confined aquifers and fully penetrating control wells. However, this test method may be applied to partially penetrating wells where the method may provide an estimate of hydraulic conductivity for the aquifer adjacent to the open interval of the well if the horizontal hydraulic conductivity is significantly greater than the vertical hydraulic conductivity. 5.3.2x00a0;Values obtained for storage coefficient are less reliable than the values calculated for transmissivity. Storage coefficient values calculated from control well data are not reliable. 1.1x00a0;This test method covers an analytical solution for determining transmissivity and storage coefficient of a leaky or nonleaky confined aquifer. It is used to analyze data on the flow rate from a control well while a constant head is maintained in the well. 1.2x00a0;This analytical procedure is used in conjunction with the field procedure in Practice D5786. 1.3x00a0;Limitationsx2014;The limitations of this technique for the determination of hydraulic properties of aquifers are primarily related to the correspondence between field situation and the simplifying assumption of the solution. 1.4x00a0;Unitsx2014;The values stated in either SI Units or inch-pound units are to be regarded separately as standard. The values in each system may not be exact equivalents; therefore each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the stand......
信息：ICS：13.060.10 (Water of natural resources) CCS：发布：1995 实施：

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ASTM E2193-2004 单乙二醇的紫外线透射率的标准试验方法(紫外线光谱测定法)
简介：Knowledge of the ultraviolet transmittance of monoethylene glycol is required to establish whether the product meets the requirements of its quality specifications. Dissolved oxygen in organic solvents, such as MEG, forms complexes that shift the solvent absorption from the vacuum ultraviolet range into the measurable UV range (near 190 to 250 nm). Monoethylene glycol has a UV absorption peak at 180 nm. For MEG-oxygen complexes, this peak is shifted to a longer wavelength, thus increasing the absorbability at 220 nm. 4.2.1 However, this effect is not observed in water. There is no significant measurable effect due to dissolved oxygen in water that would require nitrogen sparging prior to using for collection of the reference spectrum. 4.2.2 Nitrogen sparging and re-measurement of suspect or borderline glycol samples at 220 nm can be used as a tool to rule out or confirm the presence of UV affecting contaminants other than oxygen.1.1 This test method covers a procedure for the determination of the transmittance of monoethylene glycol (1,2-ethanediol; MEG) at wavelengths in the region 220 to 350 nm. The results provide a measure of the purity of the sample with respect to ultraviolet absorbing compounds.1.2 The values stated in SI units are to be regarded as the standard.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.1.3 Review the current Material Safety Data Sheets (MSDS) for detailed information concerning toxicity, first aid procedures, and safety precautions.
信息：ICS：71.040.50 (Physicochemical methods of analysis) CCS：G17 发布：2004 实施：

ASTM D5785-1995(2013) 通过低阻尼井回应顶部瞬间改变 (微水试验) 测定非越流性承压含水层透射率的 (分析程序) 标准试验方法
简介：6.1x00a0;The assumptions of the physical system are given as follows: 6.1.1x00a0;The aquifer is of uniform thickness and confined by impermeable beds above and below. 6.1.2x00a0;The aquifer is of constant homogeneous porosity and matrix compressibility and of homogeneous and isotropic hydraulic conductivity. 6.1.3x00a0;The origin of the cylindrical coordinate system is taken to be on the well-bore axis at the top of the aquifer. 6.1.4x00a0;The aquifer is fully screened. 6.2x00a0;The assumptions made in defining the momentum balance are as follows: 6.2.1x00a0;The average water velocity in the well is approximately constant over the well-bore section. 6.2.2x00a0;Flow is laminar and frictional head losses from flow across the well screen are negligible. 6.2.3x00a0;Flow through the well screen is uniformly distributed over the entire aquifer thickness. 6.2.4x00a0;Change in momentum from the water velocity changing from radial flow through the screen to vertical flow in the well are negligible. 6.2.5x00a0;The system response is an exponentially decaying sinusoidal function. 1.1x00a0;This test method covers determination of transmissivity from the measurement of the damped oscillation about the equilibrium water level of a well-aquifer system to a sudden change of water level in a well. Underdamped response of water level in a well to a sudden change in water level is characterized by oscillatory fluctuation about the static water level with a decrease in the magnitude of fluctuation and recovery to initial water level. Underdamped response may occur in wells tapping highly transmissive confined aquifers and in deep wells having long water columns. 1.2x00a0;This analytical procedure is used in conjunction with the field procedure Test Method D4044 for collection of test data. 1.3x00a0;Limitationsx2014;Slug tests are considered to provide an estimate of transmissivity of a confined aquifer. This test method requires that the storage coefficient be known. Assumptions of this test method prescribe a fully penetrating well (a well open through the full thickness of the aquifer), but the slug test method is commonly conducted using a partially penetrating well. Such a practice may be acceptable for application under conditions in which the aquifer is stratified and horizontal hydraulic conductivity is much greater than vertical hydraulic conductivity. In such a case the test would be considered to be representative of the average hydraulic conductivity of the portion of the aquifer adjacent to the open interval of the well. The method assumes laminar flow and is applicable for a slug test in which the initial water-level displacement is less than 0.1 or 0.2 of the length of the static water column.
信息：ICS：93.160 (Hydraulic construction) CCS：发布：1995 实施：

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ASTM E2193-2002 单乙二醇的紫外线透射率的标准试验方法(紫外线光谱测定法)
简介：1.1 This test method covers a procedure for the determination of the transmittance of monoethylene glycol (1,2-ethanediol; MEG) at wavelengths in the region 220 to 350 nm. The results provide a measure of the purity of the sample with respect to ultraviolet absorbing compounds.1.2 The values stated in SI units are to be regarded as the 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.1.3 Review the current Material Safety Data Sheets (MSDS) for detailed information concerning toxicity, first aid procedures, and safety precautions.
信息：ICS：71.040.50 (Physicochemical methods of analysis) CCS：G17 发布：2002 实施：

ASTM D5785-1995(2006) 通过低阻尼井回应顶部瞬间改变(定容积瞬息提水或注水试验)测定非越流性承压含水层透射率的(分析程序)标准试验方法
简介：The assumptions of the physical system are given as follows: 6.1.1 The aquifer is of uniform thickness and confined by impermeable beds above and below. 6.1.2 The aquifer is of constant homogeneous porosity and matrix compressibility and of homogeneous and isotropic hydraulic conductivity. 6.1.3 The origin of the cylindrical coordinate system is taken to be on the well-bore axis at the top of the aquifer. 6.1.4 The aquifer is fully screened. The assumptions made in defining the momentum balance are as follows: 6.2.1 The average water velocity in the well is approximately constant over the well-bore section. 6.2.2 Flow is laminar and frictional head losses from flow across the well screen are negligible. 6.2.3 Flow through the well screen is uniformly distributed over the entire aquifer thickness. 6.2.4 Change in momentum from the water velocity changing from radial flow through the screen to vertical flow in the well are negligible. 6.2.5 The system response is an exponentially decaying sinusoidal function.1.1 This test method covers determination of transmissivity from the measurement of the damped oscillation about the equilibrium water level of a well-aquifer system to a sudden change of water level in a well. Underdamped response of water level in a well to a sudden change in water level is characterized by oscillatory fluctuation about the static water level with a decrease in the magnitude of fluctuation and recovery to initial water level. Underdamped response may occur in wells tapping highly transmissive confined aquifers and in deep wells having long water columns.1.2 This analytical procedure is used in conjunction with the field procedure Test Method D 4044 for collection of test data.1.3 Limitations Slug tests are considered to provide an estimate of transmissivity of a confined aquifer. This test method requires that the storage coefficient be known. Assumptions of this test method prescribe a fully penetrating well (a well open through the full thickness of the aquifer), but the slug test method is commonly conducted using a partially penetrating well. Such a practice may be acceptable for application under conditions in which the aquifer is stratified and horizontal hydraulic conductivity is much greater than vertical hydraulic conductivity. In such a case the test would be considered to be representative of the average hydraulic conductivity of the portion of the aquifer adjacent to the open interval of the well. The method assumes laminar flow and is applicable for a slug test in which the initial water-level displacement is less than 0.1 or 0.2 of the length of the static water column.1.4 This test method of analysis presented here is derived by van der Kamp (1) based on an approximation of the underdamped response to that of an exponentially damped sinusoid. A more rigorous analysis of the response of wells to a sudden change in water level by Kipp (2) indicates that the method presented by van der Kamp (2) matches the solution of Kipp (1) when the damping parameter values are less than about 0.2 and time greater than that of the first peak of the oscillation (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：93.160 (Hydraulic construction) CCS：P13 发布：1995 实施：

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ASTM E2193-2002a 单乙二醇的紫外线透射率的标准试验方法(紫外线光谱测定法)
简介：1.1 This test method covers a procedure for the determination of the transmittance of monoethylene glycol (1,2-ethanediol; MEG) at wavelengths in the region 220 to 350 nm. The results provide a measure of the purity of the sample with respect to ultraviolet absorbing compounds.1.2 The values stated in SI units are to be regarded as the 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.1.3 Review the current Material Safety Data Sheets (MSDS) for detailed information concerning toxicity, first aid procedures, and safety precautions.
信息：ICS：71.040.50 (Physicochemical methods of analysis) CCS：G17 发布：2002 实施：

ASTM E1348-90 用半球几何形状分光光度法测定透射率和颜色的标准试验方法
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信息：ICS： CCS：发布：1990-01-01 实施：

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