ASTM D1720-03
Historical Standard: ASTM D1720-03 Standard Test Method for Dilution Ratio of Active Solvents in Cellulose Nitrate Solutions
SUPERSEDED (see Active link, below)
ASTM D1720
1. Scope
1.1 This test method covers the determination of the volume ratio of hydrocarbon diluent to active solvent required to cause persistent heterogeneity (precipitation) in a solution of cellulose nitrate.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.3 The following applies to all specified limits in this standard; for purposes of determining conformance with this standard, an observed value or a calculated value shall be rounded off 'to the nearest unit' in the last right-hand digit used in expressing the specification limit, in accordance with the rounding-off method of Practice E 29.
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 and health practices and determine the applicability of regulatory limitations prior to use. For specific hazard statements, see Section 6.
1.5 For hazard information and guidance, see the supplier's Material Safety Data Sheet.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards
D301 Test Methods for Soluble Cellulose Nitrate
D841 Specification for Nitration Grade Toluene
D4615 Specification for n-Butyl Acetate (All Grades)
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
Keywords
active solvents; cellulose nitrate solutions; dilution ratio; hydrocarbon diluent;
ICS Code
ICS Number Code 87.060.30 (Solvents)
DOI: 10.1520/D1720-03
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