||ASTM Test Method Being Developed to Replace Lead Acetate Titration
A proposed new ASTM Standard Test Method for Formic Acid in Glacial
Acetic Acid by Capillary Gas Chromatography is being developed
to replace the lead acetate titration procedure described in D 3546, Standard Test Method for Formic Acid in Glacial Acetic Acid.
Collaborating on this effort are chemists representing various
manufacturers of solvents, plasticizers, and chemical intermediates
in Subcommittee D01.35 on Solvents, Plasticizers and Chemical
Intermediates, within ASTM Committee D01 on Paint and Related Coatings, Materials and Applications.
According to Subcommittee Chairman R.G. Montemayor, Ph.D., senior
chemist, Imperial Oil Ltd., Sarnia, Ontario, Canada, D 3546 uses
lead tetra acetate, a cancer suspect agent, and is not specific
for formic acid. (Other reducing agents are reported as formic
acid.) The proposed new test method specifically identifies and
quantifies formic acid impurity in glacial acetic acid.
For further technical information, contact R.G. Montemayor, Ph.D., Products and Chemicals Division, Imperial Oil Ltd., Sarnia,
Ontario, Canada (fax: 519/339-5945). Committee D01 meets June
10-13 in Pittsburgh, Pa., in conjunction with ASTM Committee G03 on Weathering and Durability. For meeting or membership information,
contact Staff Manager Tim Brooke, ASTM (phone: 610/832-9729). //
Copyright 2001, ASTM