Quality, Standards and Testing

Water needed for human consumption, industrial purposes or other requirements must cater to certain minimum standards. The quality of any water is defined by its physical and chemical properties (characteristics). Physical properties include its appearance (colour, clarity and odour, perhaps also its taste) while the chemical properties refer to the constituents dissolved in it. Some of the physical properties are measurable and can be expressed in units of measurement while others like appearance, odour or taste are clearly subjective. However, all the chemical constituents can be measured accurately.

Drinking water must meet certain quality standards to safeguard the health of the people. The permissible and desirable limits of various parameters in drinking water have been detailed as per the Bureau of Indian Standards (BIS) standard specifications for potable water. These parameters are included in BIS-10500-1991. The various parameters covered include colour, odour, pH, total dissolved solids, hardness, alkalinity, elemental compounds such as iron, manganese, sulphate, nitrate, chloride, fluoride, arsenic, chromium, copper, cyanide, lead, mercury, zinc and coliform bacteria. The tolerance limits for inland surface waters for various classes of water use have been published by the Central Water Commission. Per ISI-IS: 2296-1982, the tolerance limits of parameters are specified as per classified use of water depending on various uses of water ranging from Class A to Class E.

What does the water that one drinks contain, what substances are dissolved in it and what are their safe limits? What are the issues that affect water quality? For more detailed information on all this, please read our FAQs on Rules, Regulations & Standards concerning water and Equipments used to measure water quality and quantity

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Hello Sir,

I am Samir from Punjab. I want to know what are the rules and regulations regarding the alkaline water (pH- 9.5) for running a business of bottling plants. Please provide the info.

Thanks

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Are you ready to apply the collective brain power of multinationals, startups, innovators and entrepreneurial ecosystem builders to make sustainable change for urban water in India?

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Hello,

Please let me know if the water with below parameters suitable for construction

pH - 7.47
Total hardness as caco3 - 850 mg/ l
Total dissolved solids - 2154 mg / l
Total alkanity - 400 mg/l
Sulphates - 674 mg/l

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(Question received through email)

Dear sir/madam,

I am interested to know whether the electromagnetic water conditioners are certified by you/other bodies/institutions for use as anti-scale forming/scale-inhibiting  device/method  for routine domestic  use. Have  you conducted studies/ experiments/research to prove their effectiveness in preventing scale formation on tubes? If so, kindly share with me the relevant data you have so that I can purchase them with confidence.

I request an early and detailed reply.

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We have a borewell which giver smelly water during rainy days. Any reliable and perment solution to test the water and fix it to have a clean water.

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