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  • ASTM
    D1720-03(2012) Standard Test Method for Dilution Ratio of Active Solvents in Cellulose Nitrate Solutions
    Edition: 2012
    $91.10
    Unlimited Users per year

Description of ASTM-D1720 2012

ASTM D1720 - 03(2012)

Standard Test Method for Dilution Ratio of Active Solvents in Cellulose Nitrate Solutions

Active Standard ASTM D1720 | Developed by Subcommittee: D01.35

Book of Standards Volume: 06.04




ASTM D1720

Significance and Use

4.1 By use of standard or reference grade materials for any two of the three components, namely, oxygenated solvent, diluent, or cellulose nitrate, the effect of different batches or different types of the third component can be determined.

4.2 This test method is applicable for the determination of the following:

4.2.1 The dilution ratio of toluene as the standard diluent to an oxygenated solvent under test, using as the solute standard cellulose nitrate as defined in 5.2 .

4.2.2 The dilution ratio of a hydrocarbon diluent under test to n -butyl acetate as the standard solvent, using as a solute standard cellulose nitrate as defined in 5.2 .

4.2.3 The dilution ratio of toluene, as the standard diluent, to n -butyl acetate as the standard solvent, using as the solute cellulose nitrate of varying solubility characteristics.

4.3 The information developed through this test may be useful in the formulation of cellulose-based lacquers and adhesives.

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 standard. No other units of measurement are included in this standard.

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 E29 .

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/D1720-03R12

ASTM International is a member of CrossRef.

ASTM D1720

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About ASTM

ASTM International, formerly known as the American Society for Testing and Materials (ASTM), is a globally recognized leader in the development and delivery of international voluntary consensus standards. Today, some 12,000 ASTM standards are used around the world to improve product quality, enhance safety, facilitate market access and trade, and build consumer confidence. ASTM’s leadership in international standards development is driven by the contributions of its members: more than 30,000 of the world’s top technical experts and business professionals representing 150 countries. Working in an open and transparent process and using ASTM’s advanced electronic infrastructure, ASTM members deliver the test methods, specifications, guides, and practices that support industries and governments worldwide.
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