The requirements of this standard shall apply to all HIMM's that process plastic materials and inject said material into a mold held closed by a horizontally acting clamp.
ANSI B151.1-2007 history
1970ANSI B151.1-2017 Plastics Machinery - Safety Requirements for Granulators, Strand Pelletizers, Dicers and Single Shaft Rotary Grinders Used for Plastic Materials (PIA)
2007ANSI B151.1-2007 Horizontal Injection Molding Machines ?Safety Requirements for Manufacture, Care, and Use