This part of EN ISO 8257 specifies procedures for moulding test specimens of PMMA materials in a specified state, and methods for measuring their properties. Any property listed in this part of EN ISO 8257 and referred to in combination with ISO 8257-1 shall be determined by the method referred to in this part of EN ISO 8257.No values are quoted for these properties. Those required for the designation of PMMA materials for moulding and extrusion are given in EN ISO 8257-1. Other properties shall be determined by the appropriate methods referred to in this part of EN ISO 8257.The values determined in accordance with this part of EN ISO 8257 will not necessar