ASTM D7487 - 18 - Standard Practice for Polyurethane Raw Materials: Polyurethane Foam Cup Test

ASTM D7487 - 18

Standard Practice for Polyurethane Raw Materials: Polyurethane Foam Cup Test

Status : Current   Published : August 2018



1.1 This practice covers the determination of cream time (initiation time), top of cup time, free rise time, free rise height, string gel time (pull time), tack free time, settle back, and free rise density of polyurethane foam formulations using a cup foam test.

1.2 Typical definitions, terms, and techniques are described; including procedures for mixing and transferring samples to the foaming container; and data gathering and evaluation. However, agreement between the customer and the testing laboratory for all these items must be obtained prior to use.

1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

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

Note 1:  There is no known ISO equivalent to this standard.

1.5  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 D7487 - 18
TitleStandard Practice for Polyurethane Raw Materials: Polyurethane Foam Cup Test
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 top of cup time, tack free time, string gel time, sink back, sigh back, settle back, resin blend, raw material, pull time, polyurethane, isocyanate, initiation time, free rise time, free rise height, free rise density, formulated polyol, foam testing, cup test, Cream time
File Size83 KB

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