IS 2720 : Part 5 : 1985 Method of Test for Soils - Part 5 : Determination of Liquid and Plastic Limit

1 Scope

1.1 This standard (Part 5) lays down methods of test for thedetermination of the liquid limit and plastic limit of soils. Threemethods, namely, mechanical method, one point method and the conemethod are given for the determination of liquid limit.

1.1.1 Liquid limits over about 120 percent shall be obtained bythe procedure specified in 3 or 4. The one point method shall notbe used for highly organic soils (see Note).

Note - The one point method may be applicable to the region forwhich the constants are obtained based upon results of tests onsoils from that region. For all national and international reportsthe results obtained by the method in 3 or 4 may be reported.