Posted on May 3, 2018May 5, 2018 by Pulse AssentISO 20558-1:2018 Plastics. Poly(phenylene sulfide) (PPS) moulding and extrusion materials Designation system and basis for specifications Link: ISO 20558-1:2018 Plastics. Poly(phenylene sulfide) (PPS) moulding and extrusion materials Designation system and basis for specifications Source: BSI Standards Related Posts:Government takes action to back small businesses and…SME Council membership revealed ahead of first meetingNew laws to introduce digital labelling for…Government backs SMEs with new Help to Grow campaign…Expert regional innovation hubs given £75 million…