Normas ISO

Sodium fluoride for industrial use -- Determination of water-insoluble matter

Cryolite, natural and artificial -- Determination of aluminium content -- Atomic absorption method

Aluminium oxide primarily used for the production of aluminium -- Determination of phosphorus content -- Reduced phosphomolybdate spectrophotometric method

Aluminium oxide primarily used for the production of aluminium -- Determination of fluorine content -- Alizarin complexone and lanthanum chloride spectrophotometric method

Photography -- Electronic flash equipment -- Determination of light output and performance

Apricots -- Guide to cold storage