ASTM D7191-18 PDF

Scope: 1.1 This test method covers the quantitative determination of water down to 20 ppm in plastics using a relative humidity sensor. 1.2 Values stated in SI units are to be regarded as standard. 1.3 Specimens tested in this test method can reach or exceed 250°C, use caution when handling them after testing has completed. 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. NOTE 1—There is no known ISO equivalent to this standard. 1.5 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 D7191-18 Referenced Document

ASTM D1193 Standard Specification for Reagent Water
ASTM D1600 Standard Terminology for Abbreviated Terms Relating to Plastics
ASTM D6869 Standard Test Method for Coulometric and Volumetric Determination of Moisture in Plastics Using the Karl Fischer Reaction (the Reaction of Iodine with Water)
ASTM D883 Standard Terminology Relating to Plastics*， 2024-02-01 Update
ASTM E177 Standard Practice for Use of the Terms Precision and Bias in ASTM Test Methods
ASTM E691 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method

2018 ASTM D7191-18 Standard Test Method for Determination of Moisture in Plastics by Relative Humidity Sensor
2010 ASTM D7191-10 Standard Test Method for Determination of Moisture in Plastics by Relative Humidity Sensor
2005 ASTM D7191-05 Standard Test Method for Determination of Moisture in Plastics by Relative Humidity Sensor