1.1 This test method provides a general technique incorporating thermogravimetry to determine the amount of highly volatile matter, medium volatile matter, combustible material, and ash content of compounds. This test method will be useful in performing a compositional analysis in cases where agreed upon by interested parties.
1.2 This test method is applicable to solids and liquids.
1.3 The temperature range of test is typically room temperature to 1000 °C. Composition between 1 weight % and 100 weight % of individual components may be determined.
1.4 This test method utilizes an inert and reactive gas environment.
1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.6 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.
1.7 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 E1131-20 Referenced Document
ASTM D3172 Standard Practice for Proximate Analysis of Coal and Coke
ASTM E1142 Standard Terminology Relating to Thermophysical Properties
ASTM E1582 Standard Practice for Calibration of Temperature Scale for Thermogravimetry
ASTM E2040 Standard Test Method for Mass Scale Calibration of Thermogravimetric Analyzers
ASTM E473 Standard Terminology Relating to Thermal Analysis
ASTM E691 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
ISO 11358 Plastics - Thermogravimetry (TG) of polymers - General principles
ASTM E1131-20 history
2020ASTM E1131-20 Standard Test Method for Compositional Analysis by Thermogravimetry
2008ASTM E1131-08(2014) Standard Test Method for Compositional Analysis by Thermogravimetry
2008ASTM E1131-08 Standard Test Method for Compositional Analysis by Thermogravimetry
2003ASTM E1131-03 Standard Test Method for Compositional Analysis by Thermogravimetry
1998ASTM E1131-98 Standard Test Method for Compositional Analysis by Thermogravimetry