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Gases - Acetylene - Determination of acetylene content - Method absorption of acetylene in water

90.93   Standard confirmed

H193 more

Gases - Determination of carbon monoxide - Absorption method

90.93   Standard confirmed

H193 more

Gases - Determination of water content - Gravimetric method

90.93   Standard confirmed

H193 more

Gases - Acetylene - Determination of content of hydrogen sulphide - Volumetric method

90.93   Standard confirmed

H193 more

Gases - Acetylene - Determination of phosphor-hydrogene content - Volumetric method

90.93   Standard confirmed

H193 more

Gases - Determination of hydrocarbons content - Infrared spectrophotometric method

90.93   Standard confirmed

H193 more

Natural gas - Hydrogen sulphide in natural gas - Methylene blue method

90.93   Standard confirmed

H193 more

Natural gas - Total sulphur content - Determination by hydrogenation

90.93   Standard confirmed

H193 more

Hydrogen sulfide and mercaptan sulfur in natural gas - Cadmium sulfate iodometric titration method

90.93   Standard confirmed

H193 more

Reagents - Preparation, standardization and storage of standard volumetric solutions for chemical analysis

90.93   Standard confirmed

H047 more

Reagents - Preparation and storage of standard reference buffer solutions for calibration of pH-meters

90.93   Standard confirmed

H047 more

Reagents - Density-composition tables for aqueous solutions of sulphuric acid

90.93   Standard confirmed

H047 more

Reagents - Density-composition tables for aqueous solutions of nitric acid

90.93   Standard confirmed

H047 more

Reagents - Density-composition tables for aqueous solution of sodium hydroxide

90.93   Standard confirmed

H047 more

Reagents - Preparation and storage of standard solutions for colorimetric, spectrophotometric, flame photometric and flame atomic absorption analysis, like and other kind of analysis

90.93   Standard confirmed

H047 more

Reagents - Preparation and storage of indicator solutions for chemical (volumetric) analysis

90.93   Standard confirmed

H047 more

Reagents. Ammonium acetate. Technical requirements

60.60   Standard published

H047 more

Reagents - Sodium acetate trihydrate - Technical requirements

60.60   Standard published

H047 more