000 00456nam a22001577a 4500
003 OSt
022 _a299
060 _aWA675
110 _aMedical Research Institute, Sri Lanka Standard Institute
245 _aSpecification for potable water
_bPart 2- Bacteriological requirements
250 _aShelf - Policies & guidelines
260 _aSri Lanka
_bSri Lanka Standard Institute
_c1983
300 _a620 p.
650 _aWater quality
942 _2nlm
_cGEN
999 _c299
_d299