资源介绍:  

This British Standard has been prepared under the direction of the Plastics and Rubber Standards Policy Committee and is identical with ISO 1183 : 1987 'Plastics - Methods for determining the density and relative density of non-cellular plastics', published by the International Organization for Standardization (ISO). It is a revision of BS 2782 : Method 620A to 620D : 1980 which is withdrawn and supersedes BS 3715 : 1964 which is withdrawn. Methods 620A, 620B,620C and 620D correspond to methods A, B, C and D respectively of ISO 1183.

This International Standard specifies four methods for the determination of the density and relative density of non-cellular plastics in the form of sheet, film, tube, moulded objects, and moulding powders,. granules and pellets.

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