TRUTEST
CHEMICAL REAGENTS FOR MAKING ANALYTICAL TESTS AND DETERMINATIONS OF BOILER WATER, SEWAGE, SOIL, COAL AND OTHER SUBSTANCES AND DETERMINING THEIR HARDNESS, ALKALINITY, PH VALUE, AND CONTEST OF CHLORIDES, SULPHATES, SULPHITES, CARBON DIOXIDE, DISSOLVED OXYGEN, PHOSPHATES, IRON AND AMMONIA, AND OTHER CHARACTERISTICS-NAMLEY, IODINE SOLUTIN, THIOSULPHATE SOLUTION, MOLYBDATE REAGENT, STANNOUS CHLORIDE SOLUTION, DRY STANNOUS CHLORIDE POWDER, SOLUBLE STARCH POWDER, STABLE STARCH SOLUTION, ACETIC ACID,...
Expired · June 1, 1967 · 72272870 ·