GOST - Russian national standards

Goods of household chemistry. Method for the determination of active chlorine

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Dental explorers

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Dental rotary instruments. Laboratory abrasive instruments. Head

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Urea for industrial use. Determination of nitrogen content. Titrimetric method after distillation

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Urea for industrial use. Determination of alkalinity. Titrimetric method

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Urea for industrial use. Determination of iron content. Photometric method with use of 2, 2` - bipyridyl

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Urea for industrial use. Determination of colority of formaldehyde solution in Hasen`s units (platinum - cobalt scale)

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Urea for industrial use. Potentiometric method of buffer capacity determination

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Urea for industrial use. Potentiometric method for determination of pH variation in presence of formaldehyde

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Urea for industrial use. Photometric method for determination of biuret content

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