This standaad ( Part 2 ) prescribes a method for the determination of sludge content of natural rubber latex of Hevea branliensis, uncompounded and unvulcanized, and subjected to some type of concentration process other than heat concentration and which may contain preservatives.
IS 3708 Pt.2-1985 history
1985IS 3708 Pt.2-1985 Test methods for natural rubber latex Part 2 Determination of sludge content NRL: 5