{"id":385208,"date":"2024-10-20T03:29:37","date_gmt":"2024-10-20T03:29:37","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-157842021\/"},"modified":"2024-10-26T06:19:53","modified_gmt":"2024-10-26T06:19:53","slug":"bs-en-157842021","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-157842021\/","title":{"rendered":"BS EN 15784:2021"},"content":{"rendered":"
This document specifies general rules for the enumeration of bacilli in feeding stuffs (additives, premixtures and compound feeds including mineral feeds) [4] that contain bacilli as a single microorganism component or in a mixture with other microorganisms. There are different categories of feed samples: a) Additives containing about 1010 colony forming units (CFU)\/g; b) Premixtures containing about 1011 CFU\/kg; c) Compound feeds, meal or pellets containing about 109 CFU\/kg.<\/p>\n
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2<\/td>\n | undefined <\/td>\n<\/tr>\n | ||||||
7<\/td>\n | 1 Scope 2 Normative references 3 Terms and definitions 4 Principle <\/td>\n<\/tr>\n | ||||||
8<\/td>\n | 5 Diluent and culture medium 5.1 Diluent 5.2 Culture medium tryptone soy agar (TSA) 5.2.1 Composition <\/td>\n<\/tr>\n | ||||||
9<\/td>\n | 5.2.2 Preparation 6 Apparatus <\/td>\n<\/tr>\n | ||||||
10<\/td>\n | 7 Sampling 8 Preparation of test sample 9 Procedure 9.1 Preparation of poured agar plates for spread plate method <\/td>\n<\/tr>\n | ||||||
11<\/td>\n | 9.2 Preparation of the initial suspension and decimal dilutions <\/td>\n<\/tr>\n | ||||||
12<\/td>\n | 9.3 Inoculation and incubation of plates 9.4 Enumeration of colonies <\/td>\n<\/tr>\n | ||||||
13<\/td>\n | 9.5 Confirmation 10 Expression of results <\/td>\n<\/tr>\n | ||||||
14<\/td>\n | 11 Precision 11.1 General 11.2 Interlaboratory studies 11.3 Repeatability 11.4 Reproducibility 12 Test report <\/td>\n<\/tr>\n | ||||||
15<\/td>\n | Annex A (informative)Notes on the procedure <\/td>\n<\/tr>\n | ||||||
16<\/td>\n | Annex B (informative)Results of the interlaboratory studies B.1 General B.2 Data obtained from VDLUFA collaborative studies <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Animal feeding stuffs: Methods of sampling and analysis. Detection and enumeration of Bacillus spp. used as feed additive<\/b><\/p>\n |