BS 906-1:1972

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Specification for engineers’ parallels – Metric units

Published By	Publication Date	Number of Pages
BSI	1972	10

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Categories: 17.040.30 - Measuring instruments, BSI

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Description

This British Standard applies to parallel sided steel blocks of six sizes in Grade A and eight sizes in Grade B, namely:

GRADE A

5 mm × 10 mm × 100 mm

10 mm × 20 mm × 125 mm

15 mm × 30 mm × 150 mm

20 mm × 40 mm × 200 mm

25 mm × 50 mm × 250 mm

30 mm × 60 mm × 300 mm

GRADE B

5 mm × 10 mm × 100 mm

10 mm × 20 mm × 125 mm

15 mm × 30 mm × 150 mm

20 mm × 40 mm × 200 mm

25 mm × 50 mm × 250 mm

30 mm × 60 mm × 300 mm

40 mm × 80 mm × 350 mm

50 mm × 100 mm × 400 mm

NOTE 1 See also 2, Material.

NOTE 2 The titles of the British Standards referred to in this standard are listed on page ii.

Six sizes of Grade A and eight of Grade B parallels with cross sections from 5 mm x 10 mm to 30 mm x 60 mm and from 5 mm x 10 mm to 50 mm x 100 mm respectively. Material, finish, accuracy, marking, protection.

Additional information

Status	Confirmed
Pages	10
Publication Date	1972-06-16
ISBN	0 580 07053 0
Standard Number	BS 906-1:1972
Title	Specification for engineers' parallels – Metric units
Descriptors	Dimensional tolerances, Accuracy, Steels, SI system (metric), Marking, Grades (quality), Dimensions, Hardness, Engineers parallels, Dimensional measurement, Precision
Publisher	BSI
Committee	TPR/1
ICS Codes	17.040.30 - Measuring instruments

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BS 906-1:1972

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