IS 5192 : Part 1 : 1994 Natural rubber compounds - Specification : Part 1 for moulded Products

1 Scope

This Indian Standard specifies compositional and physical property requirements for four non-black natural rubber compounds designated W40, W50, W60, W70, three non-black natural rubber/zincoxide compounds designated Y40, Y50, Y60 and five black natural rubber compounds designated Z40, Z50, Z60, Z70, Z80.

These compounds are intended for the manufacture of items in theform of mouldings, moulded or calendered sheet and for items cut orpunched from sheet.

Note 1 - The compounds do not necessarily have good electrical insulating properties.

Note 2 - The compounds may not be suitable for use when specialproperties are required, such as improved ozone or heat resistance,freedom from tarnishing of some metallic components (copper,silver), long term low temperature use or seals in castor oil basedfluid systems.

References

IS 3400 : Part 1 :1987 Methods of test for vulcanizedrubbers:Part 1 Tensile stress-strain properties

IS 3400 : Part 2 :1980 Methods of test for vulcanizedrubbers:Part 2 Hardness

IS 3400 : Part 4 :1987 Methods of test for vulcanizedrubbers:Part 4 Accelerated ageing

IS 3400 : Part 9 :1978 Methods of test for vulcanizedrubbers:Part 9 Density

IS 3400 : Part 10 :1977 Methods of test for vulcanized rubbers:Part 10 Compression set at constant strain

IS 6713 :1972Code of Practice for storage of vulcanizedrubber