This part of ISO 1268 specifies the general principles to be followed while injection moulding test specimens of bulk moulding compound (BMC) and gives details of mould designs for preparing one type of specimen for use in establishing reproducible moulding conditions. Where appropriate, this part of ISO 1268 may be applied to sheet moulding compound (SMC) formulated for injection moulding. Its purpose is to promote uniformity in describing the main parameters of the moulding process and also to establish uniform practice in reporting moulding conditions. The particular conditions required for the reproducible preparation of test specimens which will give comparable results will vary for each material used. These conditions are given in the International Standard for the relevant material or are to be agreed upon between interested parties. NOTE Tests have shown that mould design in an important factor in the reproducible preparation of test specimens. This part of ISO 1268 is intended to be read in conjunction with ISO 1268-1.