pratiyogita darpan hindi

pratiyogita darpan hindi 

pratiyogita darpan hindi Published this article page no  116 TDS comprise inorganic salts (principally calcium magnesium potassium sodium bicarbonates chlorides and sulfates) and some small amounts of organic matter that are dissolved in water.  As per a WHO study TDS levels below 300 mg per litre are considered to be excellent while 900 mg per litre is said to be poor and above 1200 mg is unacceptable. Contentious issue The draft notification only mentions BIScompliance which gives rise to several concerns  BIScompliance depends on several parameters not just TDS. o Thus household receiving water with acceptable TDS levels (below 500 mgl) but with other elements (eg nitrates sulphates fluorides etc) above the acceptable limit of BIS will still not comply with the specification. The household however would not require an RO system to treat it as TDS was already within limits and RO systems are ineffective in treating other impurities.  The BIS does not have any minimum limit for TDS in treated water Thus the issue of demineralisation of water after RO which adversely affects the health of consumers has not been addressed pratiyogita darpan hindi buy. 

pratiyogita darpan hindi