BS 6620-2:1991
Current
The latest, up-to-date edition.
Industrial plate screens Guide for screens of thickness below 3 mm
Hardcopy , PDF
English
31-01-1992
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Committees responsible
National foreword
Guide
0. Introduction
1. Scope and field of application
2. References
3. Definitions
4. Material and design
5. Tolerances
6. Testing
7. Designation and ordering
Annex
Examples
Tables
1. Pitch/hole ratios and related open areas
2. Examples of round hole perforations
3. Examples of square hold perforations
4. Examples of tolerances on pitch
Figures
1. Round holes: 60 deg staggered arrangement
2. Square holes: in-line arrangement
3. Square holes: half-pitch staggered arrangement
Describes three patterns using round and square perforations in plate of less than 3 mm thickness.
| Committee |
LBI/37
|
| DevelopmentNote |
Also numbered as ISO 7805-2 Supersedes 86/76076 DC (09/2005)
|
| DocumentType |
Standard
|
| Pages |
12
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
This part of ISO 7805 describes three patterns using round (circular) and square perforations in plate of less than 3 mm thickness; the sizes of holes range down to 2 mm for square holes and to 0,5 mm for round holes. Five ratios of pitch to hole are specified which result in nominal open areas ranging from about 60 % to 23 %. Tolerances for both hole and pitch are given.
NOTE Industrial plate screens of thicknesses of 3 mm and above are dealt with in ISO 7805-1, Industrial plate screens – Part 1: Thickness of 3 mm and above.
| BS 7792:1995 | Specification for industrial plate screens |
| BS 6620-1:1991 | Industrial plate screens Guide for screens of thickness 3 mm and above |
| ISO 2395:1990 | Test sieves and test sieving — Vocabulary |
| BS 6511:1984 | Specification for designation of perforations in industrial plate screens |
| BS 2045:1965 | Preferred numbers |
| ISO 7805-1:1984 | Industrial plate screens — Part 1: Thickness of 3 mm and above |
| BS 481-2:1972 | Specification for industrial wire mesh High tensile steel wire mesh with square apertures from 125 mm to 2 mm |
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