ASTM D 1485 - 07 (Reapproved 2015) Standard Practice for Rubber from Natural Sources - Sampling and Sample Preparation

Current edition approved Aug. 1, 2015. Published October 2015. Originally approved in 1957. Last previous edition approved in 2011 as D1485 – 07 (2011). — 3 p.
This practice, intended for referee purposes, covers a uniform procedure for sampling lots of solid natural rubber. Natural rubber generally is marketed in bales or packages of various sizes.
A procedure for determining the acceptability of lots of natural rubber is given. This procedure is based on a variable sampling plan.
The sample size is based on the assumption of a visually homogeneous material. If obvious heterogeneity exists, the number of samples shall be increased.