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 to look at ways new high-tech materials…Governments sets out steps to modernise and simplify…New subsidy control system will support UK jobs,…Plans unveiled to decarbonise UK power system by 2035Big boost for UK economy as subsidy control system…