1
IS 14146 : 1994 ( ISO 9689 : 1990)
(Reaffirmed Year :
2014
)
Raw optical glass - resistance to attack by aqueous alkaline phosphate-containing detergant solutions at 50°C - Testing and classification
Technical Committee :
PGD 22
Price :
₹ 2,100.00 ( US$ 25.00)