Acetic acid O.A 0.1 mol / l
Ammon's rodent O.A. 0.1 mol / l
Barium chloride x2H2O O.A 0.05mol / l
Disodium edetate O.A. 0.05 mol / l
Iodine O.A. 0.05 mol / l
Nitric acid O.A 0.1 mol / l
Potassium bromide O.A. 0.1 mol / l