ASTM D6099-97

ASTM D6099-97 - 10.4.1997

1. Scope

1.1 this test method determines the acidity, expressed as parts per million (ppm) of HCI, in aromatic isocyanate samples of greater than 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 is no similar or equivalent ISO standard.

2. Referenced Documents

D883-26a	Standard Terminology Relating to Plastics (Includes all amendments and changes 6/15/2026).
E180-03	Standard Practice for Determining the Precision of ASTM Methods for Analysis and Testing of Industrial and Specialty Chemicals (Withdrawn 2009)
E691-23	Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
ISO 14898	Plastics--Aromatic isocyanates for use in the production of polyurethane--Determination of acidity Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.