ASTM D6437 Alkalinity in Low-Alkalinity Polyols (Determination of CPR Values of Polyols)
ASTM D6437 test method determines the basic content of the low alkalinity Polyols. The alkalinity number is also detected as CPR (controlled polymerization rate) of polyether polyols. The test method also determines the alkaline number of many other materials except amino-based polyols. The final results of this test method can be expressed in SI units.
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