Acetic anhydride for industrial use — Methods of test

Acetic anhydride and butan-1-ol for industrial use — Determination of bromine number

Phthalic anhydride for industrial use — Methods of test — Part 1: General

Phthalic anhydride for industrial use — Methods of test — Part 2: Measurement of colour of the molten material

Phthalic anhydride for industrial use — Methods of test — Part 3: Measurement of colour stability

Phthalic anhydride for industrial use — Methods of test — Part 4: Measurement of colour after treatment with sulphuric acid

Phthalic anhydride for industrial use — Methods of test — Part 5: Determination of free acidity — Potentiometric method

Phthalic anhydride for industrial use — Methods of test — Part 6: Determination of phthalic anhydride content — Titrimetric method

Phthalic anhydride for industrial use — Methods of test — Part 7: Determination of maleic anhydride content — Polarographic method

Phthalic anhydride for industrial use — Methods of test — Part 8: Determination of ash

Phthalic anhydride for industrial use — Methods of test — Part 9: Determination of impurities oxidizable in the cold by potassium permanganate — Iodometric method

Phthalic anhydride for industrial use — Methods of test — Part 10: Determination of 1,4- naphthaquinone content — Colorimetric method

Phthalic anhydride for industrial use — Methods of test — Part 11: Determination of iron content — 2,2'- Bipyridyl photometric method

Maleic anhydride for industrial use — Methods of test — Part 1: General

Maleic anhydride for industrial use — Methods of test — Part 2: Measurement of colour of the molten material

Maleic anhydride for industrial use — Methods of test — Part 3: Determination of free acidity — Potentiometric method

Maleic anhydride for industrial use — Methods of test — Part 4: Determination of maleic anhydride content — Titrimetric method

Maleic anhydride for industrial use — Methods of test — Part 5: Determination of ash

Maleic anhydride for industrial use — Methods of test — Part 6: Determination of iron content — 2,2'- Bipyridyl photometric method