Moldova standards PDF

Phthalic anhydride for industrial use - Methods of test - Part 4- Measurement of colour after treatment with sulphuric acid. Original standard ISO 1389-4-1977 in PDF full version. Additional info + preview on request

Document status: Withdrawn

Phthalic anhydride for industrial use - Methods of test - Part 5- Determination of free acidity - Potentiometric method. Original standard ISO 1389-5-1977 in PDF full version. Additional info + preview on request

Document status: Withdrawn

Phthalic anhydride for industrial use - Methods of test - Part 6- Determination of phthalic anhydride content - Titrimetric method. Original standard ISO 1389-6-1977 in PDF full version. Additional info + preview on request

Document status: Withdrawn

Phthalic anhydride for industrial use - Methods of test - Part 7- Determination of maleic anhydride content - Polarographic method. Original standard ISO 1389-7-1977 in PDF full version. Additional info + preview on request

Document status: Withdrawn

Phthalic anhydride for industrial use - Methods of test - Part 8- Determination of ash. Original standard ISO 1389-8-1977 in PDF full version. Additional info + preview on request

Document status: Withdrawn

Phthalic anhydride for industrial use - Methods of test - Part 9- Determination of impurities oxidizable in the cold by potassium permanganate - Iodometric method. Original standard ISO 1389-9-1977 in PDF full version. Additional info + preview on request

Document status: Withdrawn