Chemical products for industrial use; Sampling techniques; Solid chemical products in the form of particles varying from powders to coarse lumps— 36 стр.
Phosphoric acid and sodium phosphates for industrial use (including foodstuffs); Determination of fluorine content; Alizarin complexone and lanthanum nitrate photometric method— 8 стр.
Sodium tripolyphosphate and sodium pyrophosphate for industrial use; Determination of total phosphorus(V) oxide content; Quinoline phosphomolybdate gravimetric method— 5 стр.
