IS 13822 : 1993 Braille duplicating sheet - Specification

1 Scope

1.1 This standard specifies the requirements for brailleduplicating sheet used for the duplication of masters of braillescript for visually impaired persons.

2 References

IS 2076 : 1981Unsupported flexible polyvinyl chloride sheeting

IS 3346 : 1980Method of determination of thermal conductivity ofthermal insulation materials (two slab guarded hot platemethod)

IS 6307 : 1985Rigid PVC sheets

IS 10151 : 1982Polyvinyl chloride (PVC) and its copolymers for its safeuse in contact with foodstuffs, pharmaceuticals and drinking water

IS 11647 : 1986Braille paper