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ASTM D5155-10

Historical Revision

Standard Test Methods for Polyurethane Raw Materials Determination of the Isocyanate Content of Aromatic Isocyanates

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1.1 These test methods measure the isocyanate content of aromatic isocyanates used as polyurethane raw materials.

1.1.1 Test Method AUnheated toluene-dibutylamine determines the toluene diisocyanate content, the amine equivalent and the isocyanate content of refined toluene-2,4-diisocyanate and toluene-2,6-diisocyanate, or mixtures of the two. Other isomers, if present, will be included in the determination. This test method may also be applied to other isocyanates of suitable reactivity and solubility.

1.1.2 Test Method BHeated toluene-dibutylamine determines the amine equivalent and the isocyanate content of crude or modified isocyanates derived from toluene diisocyanate, methylene di-(4-phenylisocyanate) and polymeric (methylene phenylisocyanate).

1.1.3 Test Method CUnheated trichlorobenzene-toluene-dibutylamine determines the amine equivalent and the isocyanate content of crude or modified isocyanates derived from toluene diisocyanate, methylene-di-(4-phenylisocyanate) and polymeric (methylene phenylisocyanate).

1.2 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—Method C of this test method is equivalent to Method B of ISO 14896.


These test methods can be used for research or for quality control to characterize isocyanates used in polyurethane products.

SDO ASTM: ASTM International
Document Number D5155
Publication Date April 1, 2010
Language en - English
Page Count 5
Revision Level 10
Supercedes
Committee D20.22
Publish Date Document Id Type View
Aug. 1, 2019 D5155-19 Revision
Nov. 1, 2014 D5155-14E01 Revision
Nov. 1, 2014 D5155-14 Revision
April 1, 2010 D5155-10 Revision
April 1, 2007 D5155-07 Revision
Nov. 10, 2001 D5155-96 Revision
Nov. 10, 2001 D5155-01 Revision