ASTM D5629-23 PDF

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Standard Test Method for Polyurethane Raw Materials: Determination of Acidity in Low-Acidity Aromatic Isocyanates and Polyurethane Prepolymers
standard by ASTM International, 03/01/2023

Document Format: PDF

Description

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 di(phenylisocyanate) (see Note 1). Refer to Test Method D6099 for determination of acidity in moderate- to high-acidity aromatic isocyanates.

Product Details

Published:
03/01/2023
Number of Pages:
3
File Size:
1 file , 73 KB
Redline File Size:
2 files , 140 KB
Note:
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