Posted on October 3, 2018October 5, 2018 by Pulse AssentISO 21257:2018 Plastics. Polymer polyols for use in the production of polyurethane. Determination of the residual acrylonitrile and styrene monomer content by gas chromatography Link: ISO 21257:2018 Plastics. Polymer polyols for use in the production of polyurethane. Determination of the residual acrylonitrile and styrene monomer content by gas chromatography Source: BSI Standards Related Posts:£80 million boost to help UK businesses tackle…Expert regional innovation hubs given £75 million…Boost for British businesses as UK and Indonesia…New laws to introduce digital labelling for…UK and Singapore Enhance Cooperation in Sustainable…