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BS EN ISO 5456-2:1999
Technical drawings. Projection methods. Orthographic representations (British Standard)
This part of ISO 5456 specifies basic rules for the application of orthographic representation to all types of technical drawings in all technical fields, according to the general rules specified in ISO 128, ISO 129, ISO 3098-1, ISO 3461-2 and ISO 5456-1.
British Standards Institution [bsi]