Specification for internal micrometers (including stick micrometers)1 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

Note 1: This standard is to be read in conjunction with BS1902: Section 5

and marking requirements and test methods for flueless patio heaters for outdoor or amply ventilated area use only

BS 6272 applies to switching devices which are able to operate only when completed with external associated electronic circuit components and contacts

The steels specified in this part of BS EN 10025 are not intended to be heat treated except products delivered in the delivery condition +N

as well as the choice of materials

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the examination

A complete and accurate description of the behaviour of the road vehicle must necessarily involve information obtained from a number of different tests

storing and exchange of information on bibliographic sources for terminological work and terminography

accuracy of build

and similar use

The siliceous residue is filtered off and any traces of retained iron are recovered by subsequent treatment of the ignited residue