Standard Test Method for Polyurethane Raw Materials: Determination of Acidity in Moderate to High Acidity Aromatic Isocyanates
|Publication Date:||1 September 2013|
|ICS Code (Raw materials for rubber and plastics in general):||83.040.01|
This test method determines the acidity, expressed as parts per million (ppm) of HCl, 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.
*A Summary of Changes section appears at the end of this standard