71.080.20 (Halogenated hydrocarbons) 标准查询与下载

ASTM D2988-96(2015) 卤化有机溶剂中水溶性卤化物离子的标准试验方法及其外加剂

3.1 These test methods are used to establish manufacturing and purchasing specifications. These test methods will provide a means of determining the condition of the solvent in use. A high water soluble chloride level may indicate the start of solvent decomposition. 1.1 Test Methods 1, 2, and 3—These test methods cover the determination of water-extractable halide ion in halogenated organic solvents and their admixtures. Fluoride ion is not measured due to the solubility of silver fluoride. 1.2 Test Method 4—This test method covers the determination of chloride ion in halogenated organic solvents and their admixtures. 1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 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. Specific precautionary statements are given in Section 6.

Standard Test Methods for Water-Soluble Halide Ion in Halogenated Organic Solvents and Their Admixtures

ASTM D2111-95(2000) 卤化有机溶剂及其掺合物的比重和密度的标准测试方法

1.1 These test methods cover the determination of the specific gravity of halogenated organic solvents and solvent admixtures. They define suitable apparatus and procedures and furnish details underlying the interpretation of test data and the selection of numerical limits for agreement among interested persons and agencies. 1.2 Two methods are covered as follows: 1.2.1 Method A , specific gravity by means of a hydrometer. 1.2.2 Method B , specific gravity by means of a pycnometer. Note 1-In referee problems, Method B may be used. 1.2.3 Method C , specific gravity by means of an electronic densitometer. 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.

Standard Test Methods for Specific Gravity of Halogenated Organic Solvents and Their Admixtures

ASTM D4755-95(2004) 卤化有机溶剂及其掺和物中游离卤素的标准试验方法

Free halogens will react with any residual moisture in a solvent to form acid. These acids can cause corrosion to process and storage equipment used for halogenated solvents. The presence of free halogens in halogenated solvents is often an indication that the stabilizers in the solvent system are breaking down. This test method provides a means of detecting the presence of free halogens in halogenated solvents and their admixtures. 1.1 This test method covers the evaluation of free halogens in halogenated organic solvents and their admixtures. 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.

Standard Test Method for Free Halogens in Halogenated Organic Solvents and Their Admixtures

ASTM D4494-95(2004) 检测干洗级全氯乙烯中残余气味的标准试验方法

Normally clothes cleaned with perchloroethylene will have a clean cloth odor. If a foreign odor is present, it may be objectionable.1.1 This test method covers the detection of a residual odor in drycleaning-grade perchloroethylene.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 Section 7.

Standard Test Method for Detecting Residual Odor of Drycleaning Grade Perchloroethylene

ASTM D4755-95(2000) 卤化有机溶剂及其混合物中游离卤素的标准试验方法

1.1 This test method covers the evaluation of free halogens in halogenated organic solvents and their admixtures. 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.

Standard Test Method for Free Halogens in Halogenated Organic Solvents and Their Admixtures

ASTM D4494-95(2000) 检测干洗级全氯乙烯残留气味的方法

1.1 This test method covers the detection of a residual odor in drycleaning-grade perchloroethylene. 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 Section 7.

Standard Test Method for Detecting Residual Odor of Drycleaning Grade Perchloroethylene

ASTM D3448-85(2005) 三氯三氟乙烷的特殊水质传导率的试验方法

This test method allows for the determination of ionizable contaminants (expressed in terms of ppb of HCl) in trichlorotrifluoroethane via measurement of specific aqueous conductance. This test method can be used for establishing manufacturing and purchasing specifications.1.1 This test method covers the determination of aqueous conductivity due to ionizable contaminants extracted from trichlorotrifluoroethane. The value of 1.9 S/cm as maximum specific aqueous conductance corresponds to 0.1 ppm of chloride ion (100 ppb). It was calculated by putting the solvent specification of 0.1 ppm chloride into the equation of the subject method to find C2 C1 equals 19.08. The specific conductance due to contaminants from the solvent was then calculated as follows: (C2- C1)C 3 = (19) (0.1) = 1.9 956;S/cm1.2 The above is exclusive of the background specific conductance of the water used in the analysis.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 consult and establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Specific precautionary statements are given in Section 6.

Standard Test Method for Specific Aqueous Conductance of Trichlorotrifluoroethane