BSI - BS 870
Specification for external micrometers
Organization: | BSI |
Publication Date: | 9 June 1950 |
Status: | inactive |
Page Count: | 20 |
ICS Code (Measuring instruments): | 17.040.30 |
scope:
External micrometers with fixed anvils having measuring ranges of 0 to 1⁄2 in and 0 to 13 mm, and 1 in and 25 mm up to maximum sizes of 24 in and 600 mm respectively. Includes external micrometer with interchangeable anvils for alternative measurement ranges. Material, design of frame, micrometer screw, spindle, thimble and barrel, adjustments, measuring faces, accuracy, packing and marking; setting gauges (material, general design, accuracy); test methods appended.
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