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Standard and/or project Stage TC
ISO 1918:1972
Boric acid, boric oxide, disodium tetraborates and crude sodium borates for industrial use — Determination of sulphur compounds — Volumetric method
95.99 ISO/TC 47
ISO 2214:1972
Boric acid, boric oxide and Disodium tetraborates for industrial use — Determination of manganese content — Formaldehyde oxime photometric method
95.99 ISO/TC 47
ISO 2215:1972
Boric acid, boric oxide and Disodium tetraborates for industrial use — Determination of copper content — Zinc dibenzyldithiocarbamate photometric method
95.99 ISO/TC 47
ISO 3119:1976
Boric acid, boric oxide and disodium tetraborates for industrial use — Determination of chromium content — Diphenylcarbazide photometric method
95.99 ISO/TC 47
ISO 3121:1976
Boric acid, boric oxide and disodium tetraborates for industrial use — Determination of chloride content — Mercurimetric method
95.99 ISO/TC 47
ISO 3122:1976
Boric acid, boric oxide, disodium tetraborates, sodium perborates and crude borates for industrial use — Determination of iron content — 2,2'- Bipyridyl photometric method
95.99 ISO/TC 47
ISO 5932:1980
Boric acid, boric oxide and disodium tetraborates for industrial use — Determination of cobalt content — 2- nitroso-1- naphthol photometric method
95.99 ISO/TC 47
ISO 5933:1980
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
95.99 ISO/TC 47

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