ASTM D4661 - 18 - Standard Test Methods for Polyurethane Raw Materials: Determination of Total Chlorine in Isocyanates

ASTM D4661 - 18

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

Status : Current   Published : August 2018

Format
PDF

Format
HARDCOPY



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.




Standard NumberASTM D4661 - 18
TitleStandard Test Methods for Polyurethane Raw Materials: Determination of Total Chlorine in Isocyanates
StatusCurrent
Publication Date01 August 2018
Normative References(Required to achieve compliance to this standard)No other standards are normatively referenced
Informative References(Provided for Information)No other standards are informatively referenced
Descriptors Aromatic isocyanates, chlorine, isocyanates, oxygen ignition vessel, polyurethane raw materials, Schoeniger ignition, titration
ICS83.080.10
PublisherASTM
FormatA4
DeliveryYes
Pages5
File Size82 KB
Price£40.00


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