ASTM D7995-19 PDF

Scope: 1.1 This test method describes the use of a specialized liquefied gas sampler coupled to a coulometric Karl Fischer (KF) titrator for the determination of water in liquid butane with water concentrations from 1 mg ⁄kg to 100 mg ⁄kg. NOTE 1—Other liquefied petroleum gases described in Specification D1835 including propane, propene (propylene), butylenes and mixtures of these materials and other light hydrocarbons, and dimethyl ether described in Specification D7901, can be analyzed by this method but the precision has not been studied and therefore the stated precision has not been validated for these materials. 1.2 The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. See Section 10 for specific warning statements. 1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ASTM D7995-19 Referenced Document

ASTM D1265 Standard Practice for Sampling Liquefied Petroleum (LP) Gases (Manual Method)
ASTM D1835 Standard Specification for Liquefied Petroleum (LP) Gases
ASTM D2713 Standard Test Method for Dryness of Propane (Valve Freeze Method)
ASTM D3700 Standard Practice for Obtaining LPG Samples Using a Floating Piston Cylinder
ASTM D5623 Standard Test Method for Sulfur Compounds in Light Petroleum Liquids by Gas Chromatography and Sulfur Selective Detection
ASTM D6299 Standard Practice for Applying Statistical Quality Assurance and Control Charting Techniques to Evaluate Analytical Measurement System Performance*， 2023-07-01 Update
ASTM D6300 Standard Practice for Determination of Precision and Bias Data for Use in Test Methods for Petroleum Products and Lubricants
ASTM D6304 Standard Test Method for Determination of Water in Petroleum Products, Lubricating Oils, and Additives by Coulometric Karl Fischer Titration*， 2020-12-01 Update
ASTM D7901 Standard Specification for Dimethyl Ether for Fuel Purposes*， 2023-10-01 Update
ASTM E177 Standard Practice for Use of the Terms Precision and Bias in ASTM Test Methods
ASTM E203 Standard Test Method for Water Using Volumetric Karl Fischer Titration

2019 ASTM D7995-19 Standard Test Method for Total Water in Liquid Butane by Liquefied Gas Sampler and Coulometric Karl Fischer Titration