ASTM E 359 : 2026

1.1These test methods cover the analyses usually required on commercial soda ash (sodium carbonate).

1.2The analytical procedures appear in the following sections:

1.3The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.4In determining the conformance of the test results using this method to applicable specifications, results shall be rounded off in accordance with the rounding-off method of Practice E29.

1.5This 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. Specific hazards statements are given in Section 6.

1.6This 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.