IS 10696 : 1983 Specification for Round Segment Fused Bifocal Blanks

UDC 681.732.2/.3 : 621-412                                   MHD5

Reaffirmed 2018

1 Scope

1.1 This standard covers the requirements and tests for round segment, tinted and non-tinted fused bifocal blanks.

2 References

IS 2 : 1960 Rules for rounding off numerical values

IS 1400 : 1960 Specification four optical glass

IS 2500 : Part 1 : 1973 Sampling inspection tables : Part 1 Inspection by attributes and by count of defects

IS 4382 : 1967 Specification for non-tinted ophthalmic glass

IS 4905 : 1968 Methods for random sampling

IS 8260 : Part 1 : 1976 Glossary of terms relating to ophthalmic lenses and spectacle frames : Part 1 Ophthalmic lenses