36. 10 gram ± 1 gram portions of the rendered animal protein shall be placed aseptically in each of two sterile containers containing 90 ml ± 1 ml Buffered Peptone Water (BPW)(1) and mixed thoroughly until the samples are evenly suspended.
Buffered Peptone Water – See Edel, W. and Kampelmacher, E. H. (1973) Bulletin of World Health Organisation, 167-174, World Health Organisation Distribution and Sales, CH-1211, Geneva 27, Switzerland (ISSN 0042-9686)