Concat us[email protected]
Shopping Cart

No products in the cart.

🔍
BS 959:2008 2014

BS 959:2008 2014

$102.76

Specification for internal micrometers (including stick micrometers)

Published By Publication Date Number of Pages
BSI 2014 20
PDF Format Searchable Printable Preview Now
Guaranteed Safe Checkout
Categories: ,

If you have any questions, feel free to reach out to our online customer service team by clicking on the bottom right corner. We’re here to assist you 24/7.
Email:[email protected]

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 — metric measurements

Table 2 Measuring heads — inch measurements

This standard also covers stick micrometers, which are designed for the measurement of longer internal lengths, and comprise the following parts:

  1. a 150 mm or 300 mm or 6 in or 12 in micrometer unit, fitted with a micrometer of 25 mm or 1 in range, and having rounded terminal faces;

  2. a series of extension rods which, together with the micrometer unit, permit a continuous range of measurement up to the maximum length required.

Annex A gives a method of test for the accuracy of internal micrometer readings.

PDF Catalog

PDF Pages PDF Title
4 Foreword
5 1 Scope
Table 1 Measuring heads – metric measurements
Table 2 Measuring heads – inch measurements
6 2 Normative references
7 Section 1: Internal micrometers
3 Material of measuring head
4 Measuring face of measuring head
5 Micrometer screw
6 Thimble and barrel
8 Figure 1 Measurement of distance from barrel to reading end of graduation
9 7 Extension rods
8 Spacing collars
9 Adjustment
10 10 Accuracy
Table 3 Maximum permissible errors
11 Rigidity
11 Figure 2 Application of load in testing for rigidity
12 Handle
13 Marking
14 Case
15 Packing
12 Section 2: Stick micrometers
Figure 3 Stick micrometer components
16 Terminal and abutment faces
17 Screwed joints
13 18 Extension rods
19 Accuracy of micrometer unit
20 Accuracy of extension rods
Table 4 Tolerances for extension rods
21 Rigidity
14 22 Marking
23 Gap setting gauges
Figure 4 Gap setting gauge
24 Case
25 Packing
15 Annex A (normative) Method of test for accuracy of internal micrometer readings
16 Table A.1 Measuring head readings
17 Bibliography

Related products

BS 959:2008 2014
$102.76