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Standard and/or project Stage TC
Ammonium hydrogen carbonate for industrial use (including foodstuffs) — Determination of ammoniacal nitrogen content — Volumetric method after distillation
95.99 ISO/TC 47
Ammonium hydrogen carbonate for industrial use (including foodstuffs) — Determination of total alkalinity — Volumetric method
95.99 ISO/TC 47
Phosphoric acid and sodium phosphates for industrial use (including foodstuffs) — Determination of fluorine content — Alizarin complexone and lanthanum nitrate photometric method
90.93 ISO/TC 47
Ammonium hydrogen carbonate for industrial use (including foodstuffs) — Determination of ash — Gravimetric method
95.99 ISO/TC 47
Ammonium hydrogen carbonate for industrial use (including foodstuffs) — Determination of total carbon dioxide content — Titrimetric method
95.99 ISO/TC 47
Phosphoric acid for industrial use (including foodstuffs) — Determination of total phosphorus (V) oxide content — Quinoline phosphomolybdate gravimetric method
90.93 ISO/TC 47
Phosphoric acid for industrial use (including foodstuffs) — Determination of calcium content — Flame atomic absorption method
90.93 ISO/TC 47
Phosphoric acid for industrial use (including foodstuffs) — Determination of chloride content — Potentiometric method
95.99 ISO/TC 47
Phosphoric acid for industrial use (including foodstuffs) — Determination of oxides of nitrogen content — 3,4- Xylenol spectrophotometric method
95.99 ISO/TC 47
Ammonium hydrogen carbonate for industrial use (including foodstuffs) — Determination of arsenic content — Silver diethyldithiocarbamate photometric method
95.99 ISO/TC 47
Condensed phosphates for industrial use (including foodstuffs) — Determination of arsenic content — Silver diethyldithiocarbamate photometric method
95.99 ISO/TC 47
Condensed phosphates for industrial use (including foodstuffs) — Determination of calcium content — Flame atomic absorption spectrometric method
90.93 ISO/TC 47
Condensed phosphates for industrial use (including foodstuffs) — Determination of chloride content — Potentiometric method
95.99 ISO/TC 47
Condensed phosphates for industrial use (including foodstuffs) — Determination of oxides of nitrogen content — 3,4- Xylenol spectrophotometric method
95.99 ISO/TC 47
Phosphoric acid for industrial use (including foodstuffs) — Determination of hydrogen sulfide content — Titrimetric method
95.99 ISO/TC 47
Phosphoric acid for industrial use (including foodstuffs) — Determination of vanadium content — Phosphotungsten vanadate spectrometric method
95.99 ISO/TC 47
Ammonium bicarbonate (Ammonium hydrogen- carbonate) for industrial use (including foodstuffs) — Determination of lead content — Flame atomic absorption method
95.99 ISO/TC 47

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