ASTM D 3616 - 95 (Reapproved 2014) Standard Test Method for Rubber - Determination of Gel, Swelling Index, and Dilute Solution Viscosity

Current edition approved Aug. 1, 2014. Published November 2014. Originally approved in 1977. Last previous edition approved in 2009 as D3616 – 95 (2009). — 5 p.
This test method covers the determination of the dilute solution viscosity (DSV), the gel characteristics, and the swelling index of raw non-oil-extended and non-pigmented SBR and NBR.
This test method may be used to determine the DSV and gel characteristics of rubbers other than SBR and NBR, however, solvents other than 2-butanone and toluene may be required.
This test method is not intended for the measurement of micro-gel.