India, Aug. 24 -- The National Physical Laboratory (NPL) certification of all instruments and equipment that monitor emissions and ambient air quality will help standardise measurements and bring down the cost of monitors by boosting manufacturing in the country. The NPL is the Council of Scientific and Industrial Research's national measurement standards lab that calibrates the national standards of weights and measures and maintains standards of the International System of Units, which is the world's most widely-used measurement system.

In the Ministry of Environment, Forests and Climate's notification dated August 22 under Section 3 of the Environment Protection Act, NPL has been authorised to certify instruments and develop testing a...