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SRPS H.B8.634:1981  
ISS

Sulphuric acid for industrial use - Determination of cooper content - 2,2'-biquinolyl photometric method

90.60   Close of review

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SRPS H.B8.635:1981  
ISS

Sulphuric acid for industrial use - Determination of cooper content - Flame atomic absorption method

90.60   Close of review

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SRPS H.B8.638:1981  
ISS

Sulphuric acid for industrial use - Determination of permanganate reducing substances content - Volumetric method

90.60   Close of review

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SRPS H.B8.639:1981  
ISS

Oleum for industrial use - Determination of suspended substances content - Gravimetric method

90.60   Close of review

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SRPS H.B8.641:1981  
ISS

Sulphuric acid for industrial use - Determination of nitro compounds content (as HNO3) - Titrimetric method

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SRPS H.B8.642:1981  
ISS

Sulphuric acid and oleum for industrial use - Determination of lead content - Polarographic method

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SRPS H.B8.643:1981  
ISS

Sulphuric acid for industrial use - Determination of copper content - Polarographic method

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SRPS H.B8.653:1984  
ISS

Hydrogen peroxide for industrial use - Determination of appearance

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SRPS H.B8.654:1984  
ISS

Hydrogen peroxide for industrial use - Determination of hydrogen peroxide content - Volumetric method

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SRPS H.B8.655:1984  
ISS

Hydrogen peroxide for industrial use - Determination of stability - Volumetric method

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SRPS H.B8.656:1984  
ISS

Hydrogen peroxide for industrial use - Determination of free acid content (as H2SO4) - Volumetric method

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SRPS H.B8.657:1984  
ISS

Hydrogen peroxide for industrial use - Determination of residue on evaporation - Gravimetric method

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SRPS H.B8.658:1984  
ISS

Hydrogen peroxide for industrial use - Determination of residue on ignition - Gravimetric method

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SRPS H.B8.659:1984  
ISS

Hydrogen peroxide for industrial use - Determination of phosphate content - Spectrophotometric method

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SRPS H.B8.662:1992  
ISS

Sodium hydroxide for industrial use - Determination of carbonates content - Gas-volumetric method

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SRPS H.B8.664:1992  
ISS

Sodium hydroxide for industrial use - Determination of chlorides content - Volumetric method

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SRPS H.B8.665:1992  
ISS

Sodium hydroxide for industrial use - Determination of sulphates content - Barium sulphate gravimetric method

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SRPS H.B8.666:1992  
ISS

Sodium hydroxide for industrial use - Determination of sulphates content - Turbidimetric method

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