Measurement of laminated safety glass thickness must follow ISI procedure for nominal thickness and duty classification. Thickness of laminated safety glass must be measured per IS : 2553 Part I : 1990 applying the method in para 5.1 and Annexure B of IS : 2835-1987 using screw calipers (0.01 mm accuracy) at four specified points; individual readings must fall within the nominal ranges set out in the ISI table. Nominal thickness is determined from the table; purchaser supplier agreed alternate nominals use the range of the immediately lower listed thickness. The same method applies to toughened safety glass.
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Measurement of laminated safety glass thickness must follow ISI procedure for nominal thickness and duty classification.
Thickness of laminated safety glass must be measured per IS : 2553 Part I : 1990 applying the method in para 5.1 and Annexure B of IS : 2835-1987 using screw calipers (0.01 mm accuracy) at four specified points; individual readings must fall within the nominal ranges set out in the ISI table. Nominal thickness is determined from the table; purchaser supplier agreed alternate nominals use the range of the immediately lower listed thickness. The same method applies to toughened safety glass.
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