Boric acid, boric oxide, disodium tetraborates and crude sodium borates for industrial use — Determination of sulphur compounds — Volumetric method

Boric acid, boric oxide and Disodium tetraborates for industrial use — Determination of manganese content — Formaldehyde oxime photometric method

Boric acid, boric oxide and Disodium tetraborates for industrial use — Determination of copper content — Zinc dibenzyldithiocarbamate photometric method

Boric acid, boric oxide and disodium tetraborates for industrial use — Determination of chromium content — Diphenylcarbazide photometric method

Boric acid, boric oxide and disodium tetraborates for industrial use — Determination of chloride content — Mercurimetric method

Boric acid, boric oxide, disodium tetraborates, sodium perborates and crude borates for industrial use — Determination of iron content — 2,2'- Bipyridyl photometric method

Boric acid, boric oxide and disodium tetraborates for industrial use — Determination of cobalt content — 2- nitroso-1- naphthol photometric method

Boric acid, boric oxide, disodium tetraborates and crude sodium borates for industrial use — Determination of total nickel content of boric acid, boric oxide and disodium tetraborates and the alkali-soluble nickel content of crude sodium borates — Furil alpha-dioxime photometric method