ASTM D 5629 : 2005
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Standard Test Method for Polyurethane Raw Materials Determination of Acidity in Low-Acidity Aromatic Isocyanates and Polyurethane Prepolymers
Hardcopy , PDF
11-11-2014
English
01-03-2005
Important note : Users cannot be edited or removed once added to your Multi user PDF.| Committee |
D 20
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| DocumentType |
Test Method
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| Pages |
3
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| PublisherName |
American Society for Testing and Materials
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| Status |
Superseded
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| SupersededBy | |
| Supersedes |
1.1 This test method measures the acidity, expressed as ppm of hydrochloric acid (HCl), in aromatic isocyanate or polyurethane prepolymer samples of below 100 ppm acidity. The test method is applicable to products derived from toluene diisocyanate and methylene-bis-(4-phenylisocyanate) (see Note 0). Refer to Test Method D 6099 for determination of acidity in moderate- to high-acidity aromatic isocyanates.ISO 14898, Method B is technically equivalent to this test method.
1.2 The values stated in SI units are to be regarded as the standard.
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.
| ASTM D 1786 : 2016 | Standard Specification for Toluene Diisocyanate |
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