Diatomaceous Support, Acid-washed

Diatomaceous Support, Acid-washed Diatomaceous earth for gas chromatography

Diatomaceous support that has been purified by treatment with hydrochloric acid and washed with water and that complies with the following test.

Particle size Not more than 5% is retained on a No. 180 sieve and not more than 10% passes through a No. 125 sieve.