ASTM D 4678 - 04 Standard Practice for Rubber - Preparation, Testing, Acceptance, Documentation, and Use of Reference Materials

American Society for Testing and Materials (ASTM). Current edition approved Dec. 1, 2004. Published January 2005. Originally
approved in 1987. Last previous edition approved in 2001 as D 4678 – 94 (2001). This practice covers materials used on an industry-wide
basis as reference materials, which are vitally important to conduct product, specification, and development testing in the rubber and carbon black industry. This practice describes the steps necessary to ensure that any candidate material, that has a perceived need, can become a Reference Material. The practice sets forth the recommendations on the preparation steps for these materials, on the testing that shall be conducted
to permit acceptance of any candidate material, and on how the documentation needed for the acceptance shall be recorded for future use and review.