ASTM International - ASTM D4085-93(2021)
Standard Test Method for Metals in Cellulose by Atomic Absorption Spectrophotometry
| Organization: | ASTM International |
| Publication Date: | 1 July 2021 |
| Status: | active |
| Page Count: | 4 |
| ICS Code (Pulps): | 85.040 |
significance And Use:
4.1 Manganese in pulp acts as a catalyst in oxidizing cellulose.
4.2 Iron in pulp can cause yellowness in rayon fibers and influence cellulose acetate plastics color. Iron also causes... View More
scope:
1.1 This test method covers the determination of the iron, copper, manganese, and calcium content of cellulose pulp from wood or cotton.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this 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.
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.
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