Specification for internal micrometers (including stick micrometers) Ingestion-build-279162 BS ISO 27895 specifies methods

BS ISO 27895 specifies methods for the leak testing of vacuum valves used for control of gas flow or vacuum pressure in a vacuum system

which are fundamental to its application

1 Specimen size

and not-for-profit organizations

Specification for internal micrometers (including stick micrometers) Ingestion-build-279162 BS ISO 27895 specifies methods1 Scope This standard specifies requirements for internal micrometers comprising a measuring head, extension rods with or without spacing collars, and, in the smaller sizes, a handle. Provision is made for three sizes of measuring heads, in both metric and inch units, as shown in Table 1 and Table 2. NOTE Attention is drawn to the fact that metric dimensions are not necessarily direct conversions of the imperial dimensions. Table 1 Measuring heads