BS 6620-1:1991
Current
The latest, up-to-date edition.
Industrial plate screens Guide for screens of thickness 3 mm and above
Hardcopy , PDF
English
31-01-1992
Important note : Users cannot be edited or removed once added to your Multi user PDF.
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
Annex
Examples
Tables
1. Pitch/hole ratios and related open areas
2. Examples of round hole perforations at 60 deg
stagger in industrial plate screens
3. Examples of square hold perforations in industrial
plate screens
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 3 mm thickness and above.
| Committee |
LBI/37
|
| DevelopmentNote |
Also numbered as ISO 7805-1 Supersedes 83/72051 DC (09/2005)
|
| DocumentType |
Standard
|
| Pages |
12
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
This part of ISO 7805 describes three patterns using round (circular) and square perforations in low carbon steel plate of 3 mm thickness and above; the sizes of holes ranging from 125 to 3,15 mm inclusive. Five ratios of pitch to hole are prescribed which result in nominal areas ranging from about 64 to 23 %. Tolerances for both hole and pitch are given.
As this part of ISO 7805 provides a diversity of choice, it is unlikely that every one of the many possible combinations of size of hole, pitch and plate thickness will be manufactured. The selection for national standards for industrial plate screens should be made from those combinations which suit the products and screening methods in the country concerned.
Industrial plate screens of thicknesses below 3 mm are dealt with in ISO 7805-2.
| BS 7792:1995 | Specification for industrial plate screens |
| ISO 7805-2:1987 | Industrial plate screens — Part 2: Thickness below 3 mm |
| ISO 2395:1990 | Test sieves and test sieving — Vocabulary |
| BS 6620-2:1991 | Industrial plate screens Guide for screens of thickness below 3 mm |
| BS 6511:1984 | Specification for designation of perforations in industrial plate screens |
| BS 2045:1965 | Preferred numbers |
| BS 481-2:1972 | Specification for industrial wire mesh High tensile steel wire mesh with square apertures from 125 mm to 2 mm |
Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.