GOST - Russian national standards

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

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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. Determination of alkalinity. Titrimetric method

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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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Testing of chemicals of environmental hazard. Fish, acute toxicity test

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Testing of chemicals of environmental hazard. Partition Coefficient (n-octanol/water), HPLC Method

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Bees wax. Method of unsaponuficable matters determination

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Testing of chemicals of environmental hazard. Bioaccumulation in Sediment-dwelling Benthic Oligochaetes

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