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ASTM D5629-99
Standard Test Method for Polyurethane Raw Materials Determination of Acidity in Low-Acidity Aromatic Isocyanates and Polyurethane Prepolymers
STANDARD published on 10.11.1999
The information about the standard:
Designation standards: ASTM D5629-99
Note: WITHDRAWN
Publication date standards: 10.11.1999
SKU: NS-31946
The number of pages: 3
Approximate weight : 9 g (0.02 lbs)
Country: American technical standard
Category: Technical standards ASTM
Annotation of standard text ASTM D5629-99 :
Keywords:
acidity, aromatic Isocyanates, isocyanates, methylene diphenyldiisocyanate, MDI, prepolymer, polyurethane, raw materials, test method, TDI, titration, toluene diisocyanate, ICS Number Code 83.080.10 (Thermosetting materials)
Additional information
| 1. Scope | ||||||||||
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1.1 This test method covers the acidity, expressed as ppm of hydrochloric acid, 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 1). Note 1-There are no equivalent ISO standards.1.2 The values stated in SI units are to be regarded as the standard. 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 and health practices and determine the applicability of regulatory limitations prior to use. |
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| 2. Referenced Documents | ||||||||||
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