NBN T 03-357-1981
Boric acid, boric oxide, disodium tetraborates, sodium perborates and crude sodium borates for industrial use - Determination of iron content - 2,21-Bipyridyl photometric method

Standard No.

NBN T 03-357-1981

Release Date

1981

Published By

BE-NBN

Latest

NBN T 03-357-1981

Scope

This International Standard specifies a 2,2'-bipyridyl photometric method for the determination of iron in boric acid, boric oxide, dis dium tetraborates, sodium perborate and crude sodium borates for industrial use.

NBN T 03-357-1981 history

• 1981 NBN T 03-357-1981 Boric acid, boric oxide, disodium tetraborates, sodium perborates and crude sodium borates for industrial use - Determination of iron content - 2,21-Bipyridyl photometric method