The QCO for ‘Potable water bottles’ mandates compulsory certification under the appropriate IS Standard for the production and import of potable water bottles made of copper, stainless steel, or aluminium. <nis:link nis:type=tag nis:id=waterbottle nis:value=waterbottle nis:enabled=true nis:link/> <nis:link nis:type=tag nis:id=indianstandard nis:value=indianstandard nis:enabled=true nis:link/>