KS M ISO 2897-2:2016 Plastics-Impact-resistant polystyrene(PS-I)moulding and extrusion materials-Part 2:Preparation of test specimens and determiniation of properties
2016KS M ISO 2897-2:2016 Plastics-Impact-resistant polystyrene(PS-I)moulding and extrusion materials-Part 2:Preparation of test specimens and determiniation of properties
2011KS M ISO 2897-2:2011 Plastics-Impact-resistant polystyrene(PS-I)moulding and extrusion materials-Part 2:Preparation of test specimens and determiniation of properties