ASTM D 5666 - 95 (Reapproved 2014) Standard Test Method for Rubber Chemical Antidegradants - Purity of p -Phenylenediamine (PPD) Antidegradants by High Performance Liquid Chromatography

Current edition approved Aug. 1, 2014. Published November 2014. Originally approved in 1995. Last previous edition approved in 2009 as D5666 – 95 (2009). — 4 p.
This test method covers the purity of Type I, II, and III p-phenylenediamine (PPD) antidegradants as described in Classification D4676 by high performance liquid chromatography (HPLC) using ultraviolet detection and external standardcalculations.
Expertise in HPLC is necessary to the successful application of this test method.