Transcription of Indian Standard for Drinking Water-Specification IS 10500 ...
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Indian Standard for Drinking Water-Specification IS 10500 ...
water QUALITY STANDARDSWATER QUALITYI ndian Standard forDrinking water - SpecificationIS 10500 : 2012 Technical terms BIS (Bureau of Indian standards ) Desirable limits Permissible limit PPM NTU Hazen UnitsOrganoleptic and physical parametersColour, Hazen UnitsIS 10500 -2012 Acceptable: 5 Hz., Permissible: 15 HzRisks or effectsVisible tint, acceptance decreasesSourcesTannins, Iron, Copper, Manganese, Natural deposits, organic wasteTreatmentFiltration, Distillation, Reverse osmosis, OzonisationOdourIS 10500 : 2012 AgreeableRisks or EffectsRotten egg, musty, chemical smellSourcesChlorine, Hydrogen sulfide, Organic matter, Septic contamination, Methane gasTreatmentActivated carbon, Air stripping, oxidation, FiltrationpHIS 10500 -2012 Acceptable limit: , Permissible: No relaxationRisks or effects Low pH - corrosion, metallic taste High pH bitter/soda taste, depositsSourcesNaturalTreatmentIncrease pH by soda ash Decrease pH with white vinegar / citric acidTotal dissolved solids, mg/l, MaxIS 10500 : 2012 Acceptable limit: 500 mg/lPermissible.
Ammonia (as total ammonia-N), mg/l, Max IS 10500: 2012 Acceptable limit:0.5 mg/l Permissible limit: No relaxation Risks or effects None proposed for human, but toxic for aquatic life Sources Disinfection with chloramines, wastes, fertilizers & natural processes Treatment Ion Exchange with zeolite Sodium alumino silicate zeolites Distillation
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