ASTM International - ASTM D4661-18

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

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Organization: ASTM International
Publication Date: 1 August 2018
Status: active
Page Count: 5
ICS Code (Thermosetting materials): 83.080.10
significance And Use:

5.1 These test methods can be used for research or for quality control to determine the total chlorine content of aromatic isocyanates. In some instances total chlorine content may correlate with... View More

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 D4663) 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

Note 1: This standard is identical to ISO 26603.

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.

Document History

ASTM D4661-18
August 1, 2018
Standard Test Methods for Polyurethane Raw Materials: Determination of Total Chlorine in Isocyanates
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...
November 1, 2013
Standard Test Methods for Polyurethane Raw Materials: Determination of Total Chlorine in Isocyanates
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...
February 1, 2009
Standard Test Methods for Polyurethane Raw Materials: Determination of Total Chlorine in Isocyanates
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...
November 1, 2003
Standard Test Methods for Polyurethane Raw Materials: Determination of Total Chlorine in Isocyanates
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...
July 10, 1998
Standard Test Methods for Polyurethane Raw Materials Determination of Total Chlorine in Isocyanates
1.1 These test methods determine the total chlorine content of the mixed isomers of toluene diisocyanate (TDI). The difference between the total chlorine content and the hydrolyzable chlorine content...
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