Rubber test mixes — Preparation, mixing and vulcanization — Equipment and procedures

Specifies compounding ingredients, preparation of materials (batch masses, weighing tolerances, carbon black conditioning), mixing equipment (mixing mill, internal mixer, miniature internal mixer), mixing procedures (mill mixing procedure, internal-mixer mixing procedure, miniature internal mixer mixing procedure), preparation of standard vulcanized sheets for dumb-bell test pieces (conditioning of batches, vulcanization equipment, vulcanization procedure), preparation of standard vulcanized discs for ring test pieces (conditioning of batches, vulcanization equipment, vulcanization procedure).