Transcription of 2006 (Ed. 6) DRINKING WATER Quality …
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2006 (Ed. 6) DRINKING WATER Quality …
- 1 - SANS 241 : 2006 (Ed. 6). DRINKING WATER . Quality requirements MICROBIOLOGICAL SAFETY requirements . 1 2 3 4 5. Allowable Compliance Contribution a 95% of samples, 4% of samples, 1% of samples, Determinand Unit min. max. max. Upper Limits b count/100 ml Not Detected Not Detected 1. Total Coliform Bacteria c count /100 ml - - - Heterotrophic Plate Count c count per ml - - - a The allowable compliance contribution shall be at least 95% to the limits indicated in column 3, with a maximum of 4% and 1% respectively, to the limits indicated in column 4 and column 5. The objective of disinfection should, nevertheless be to attain 100% compliance to the limits indicated in column 3. b Definitive preferred indicator of faecal pollution. c Only used as an alert indicator of possible problems. PHYSICAL, ORGANOLEPTIC AND CHEMICAL requirements .
- 1 - SANS 241 : 2006 (Ed. 6) DRINKING WATER Quality Requirements MICROBIOLOGICAL SAFETY REQUIREMENTS 1 2 3 4 5 Determinand Unit
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