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GOST 3771-74
Reagents. Ammonium dihydrogen orthophosphate Specifications
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GOST 30621-98
Hydrochloric acid for industrial use. Determination of arsenic content by silver diethyldithiocarbamate photometric method
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GOST R 50837.1-95
Residual fuel oils. Test for straight-run. Method for determination of the total shape of distillation curve at pressure of 0,133 kPa (1 mm Hg)
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