ASTM-D4661:2009 Edition

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D4661-09 Standard Test Methods for Polyurethane Raw Materials: Determination of Total Chlorine in Isocyanates

Published By	Publication Date	Number of Pages
ASTM	2009	5

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Categories: 83.080.10 - Thermosetting materials, ASTM

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Description

ASTM D4661-09

Historical Standard: Standard Test Methods for Polyurethane Raw Materials: Determination of Total Chlorine in Isocyanates

ASTM D4661

Scope

1.1 These test methods determine the total chlorine content of aromatic isocyanates used as polyurethane raw materials. The difference between the total chlorine content and the hydrolyzable chlorine content (see Test Method D 4663) is a measure of the amount of o-dichlorobenzene and other ring-substituted chlorinated products that are present. Both procedures are applicable to a variety of organic compounds but the amount of sample used may have to be varied. (See Note 1.)

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 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.

Note 1—There is no equivalent ISO standard.

Keywords

aromatic isocyanates; chlorine; isocyanates; oxygen bomb; polyurethane raw materials; Schöniger ignition; titration; Chlorine content–plastics; Isocyanates; Isomer analysis; Mixed isomers; Oxygen bomb method; Polyurethane raw materials–isocyanates; Quality control (QC)–plastics; Sch¨oniger technique; Toluene diisocyanate (TDI)

ICS Code

ICS Number Code 83.080.10 (Thermosetting materials)

DOI: 10.1520/D4661-09

PDF Catalog

PDF Pages	PDF Title
1	Scope Referenced Documents Terminology Summary of Test Method Significance and Use Interferences Reagents and Materials Sampling
2	Test Conditions Apparatus Reagents Procedure
3	Calculation Precision and Bias Apparatus Reagents Procedure
4	Calculation Precision and Bias Keywords

Additional information

Standard Title	D4661-09 Standard Test Methods for Polyurethane Raw Materials: Determination of Total Chlorine in Isocyanates
Published Code	ASTM
Publication Date	2009
Pages Count	5
ICS Codes	83.080.10 - Thermosetting materials