IS 9316 : Part 7 : 1987 Methods of Test for Rubber Latex - Part 7 : Determination of Total Copper

1 Scope

1.1 This standard (Part 7) prescribes a method for thequantitative determination of total copper content in uncompoundednatural rubber latex and uncompounded synthetic rubber latex whichdo not contain chlorine.

2 References

IS 2 :1960Rules for rounding off numerical values

IS 264 :1976Specification for nitric acid

IS 265 :1976Specification for hydrochloric acid

IS 1070 :1977Specification for water for general laboratoryuse

IS 3708 : Part 1 :1966 Methods of test for natural rubber latex:Part 1 Dry rubber content, sludge content,density, total alkalinity, KOH-number,mechanical stability, volatile fatty acidnumber, pH, total nitrogen, total copper, totaliron, total manganese and total ash

IS 3708 : Part 2 :1968 Methods of test for natural rubber latex,Part 2

IS 4511 : Part 1 :1967 Methods of tests for styrene-butadienerubber(SBR) latices:Part 1 Determination of dry polymer, pH,density, residual styrene, bound styrene andsoap content

IS 9316 : Part 4 :1979 Methods of test for rubber latex:Part 4 Determination of total solids