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Significance and Use
4.4 Calcium in pulps can cause problems in processing into acetate, rayon, cellophane, etc. Calcium can create undesirable deposits in viscose spinning and film casting operation. Calcium can influence viscosity control during cellulose acetate manufacture.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D1193 Specification for Reagent Water
D1348 Test Methods for Moisture in Cellulose
D3516 Test Methods for Ashing Cellulose
E177 Practice for Use of the Terms Precision and Bias in ASTM Test Methods
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
ICS Number Code 85.040 (Pulps)
UNSPSC Code 12352200(Biochemicals)
ASTM D4085-93(2013), Standard Test Method for Metals in Cellulose by Atomic Absorption Spectrophotometry, ASTM International, West Conshohocken, PA, 2013, www.astm.orgBack to Top