สารบัญ

H2O 18.02                                                 7732-18-5

PURIFIED WATER IN BULK

Category Pharmaceutic aid.

      Purified Water in Bulk is prepared by means of distillation, ion exchange or any other appropriate method, from water that complies with the regulations on water intended for human consumption laid down by the competent authority. It contains no added substance.

(Note Purified Water in Bulk is intended for use as an ingredient of official preparations and in tests and assays unless otherwise specified.)

Description Clear, colourless liquid; odourless. 

Total organic carbon Complies with the “Total Organic Carbon” (Appendix 4.36). Alternatively the test method for Oxidizable substances may be performed. To 100 ml, add 10 ml of 1 M sulfuric acid, and heat to boiling. Add 0.20 ml of 0.020 M potassium permanganate, and boil for 5 minutes: the pink colour does not completely disappear.

Water conductivity Complies with the “Water Conductivity” (For Bulk Water, Appendix 4.37).

Microbial limit Total aerobic microbial count does not exceed 2×102 CFU per ml, determined by membrane filtration (Appendix 10.2).