IS 3708 : Part 2 : 1985 Methods of Test for Natural Rubber Latex - Part 2 : Determination of Sludge Content

1 Scope

1.1 This standard (Part 2) prescribes a method for thedetermination of sludge content of natural rubber latex of Heveabrasiliensis, uncompounded and unvulcanized, and subjected to sometype of concentration process other than heat concentration andwhich may contain preservatives.

2 References

IS 2 :1960Rules for rounding off numerical values

IS 324 :1959Specification for ordinary denatured spirit

IS 323 :1959Specification for rectified spirit

IS 3708 : Part 1 :1966 Methods of test for natural rubber latex:Part 1Dry rubber content, sludge content, density,total alkalinity, KOH-number, mechanicalstability, volatile fatty acid number, pH, totalnitrogen, total copper, total Iron, totalmanganese 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 styren-butadienerubber(SBR) latices: Part 1 Determination of drypolymer, pH, density, residual styrene, boundstyrene and soap content