ASTM D5032-19 PDF

Scope: 1.1 This practice describes a method for obtaining constant relative humidity ranging from 30 to 98 % at temperatures ranging from 0 to 70°C in relatively small containers by means of an aqueous glycerin solution. 1.2 This practice is applicable for closed systems such as environmental conditioning containers. 1.3 This practice is not recommended for the generation of continuous (flowing) streams of constant humidity unless precautionary criteria are followed to ensure source stability. 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. 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 D5032-19 Referenced Document

ASTM D6054 Standard Practice for Conditioning Electrical Insulating Materials for Testing
ASTM D618 Standard Practice for Conditioning Plastics for Testing*， 2021-07-15 Update
ASTM E104 Standard Practice for Maintaining Constant Relative Humidity by Means of Aqueous Solutions

2019 ASTM D5032-19 Standard Practice for Maintaining Constant Relative Humidity by Means of Aqueous Glycerin Solutions
2011 ASTM D5032-11 Standard Practice for Maintaining Constant Relative Humidity by Means of Aqueous Glycerin Solutions
1997 ASTM D5032-97(2003) Standard Practice for Maintaining Constant Relative Humidity by Means of Aqueous Glycerin Solutions
1997 ASTM D5032-97 Standard Practice for Maintaining Constant Relative Humidity by Means of Aqueous Glycerin Solutions