Bevel protractors (mechanical and optical). Requirements and test methods Ingestion-build-117251 The process reference model set

The process reference model set out in this standard describes various processes

including measurement of pressure

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This standard specifies requirements and recommendations for the design of environmentally sound products regarding:

audit trail and records

Bevel protractors (mechanical and optical). Requirements and test methods Ingestion-build-117251 The process reference model setBS 1685: 2008 Bevel protractors (mechanical and optical). Requirements and test methods BS 1685: 2008 relates to the following types of bevel protractors: a) Mechanical Type A. With vernier graduated to read to five minutes of arc, and with slow motion device, and acute angle attachment Type B. With vernier graduated to read to five minutes of arc, but without slow motion device or acute angle attachment Type C. With scale graduated in degrees,