ASTM D 6099 Standard Test Method for Polyurethane Raw Materials: Determination of Acidity in Moderate to High Acidity Aromatic Isocyanates
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ASTM D 6099 Document Information:
Title
Standard Test Method for Polyurethane Raw Materials: Determination of Acidity in Moderate to High Acidity Aromatic Isocyanates
ASTM International
Publication Date:
Mar 10, 2003
Scope:
This test method determines the acidity, expressed as parts per
million (ppm) of HC1, in aromatic
isocyanate samples of greater than 100 - ppm acidity. The test method
is applicable to products
derived from toluene diisocyanate and methylenebis-(4 -
phenylisocyanate) (see Note 1).
NOTE 1 - This test method is equivalent to ISO 14898, Test Method A.
Keywords:
- acidity
- aromatic isocyanates
- isocyanates
- MDI
- methylene diphenyldiisocyanate
- polyurethane
- raw materials
- TDI
- titration
- toluene diisocyanate
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