BS 4400:1969

Superseded

View Superseded by

Method for sodium chloride particulate test for respirator filters

Available format(s)

Hardcopy , PDF

Superseded date

01-06-2003

Language(s)

English

Published date

06-10-1969

Publisher

British Standards Institution

Cooperating organizations
Foreword
Method
1. Scope
2. Description of apparatus
3. Description of the method for respirator canister
tests
4. Assembly and adjustment
5. The electronic apparatus
6. Calibration
7. Testing of air filters
8. Notes on operation
Appendix
A. Ancillary apparatus
Figures
1. Flow diagram
2. Stem
3. Flange
4. Nozzle
5. Atomizer bottle
6. Screwed ring
7. Atomizer body assembly
7a. Atomizer head assembly
7b. Atomizer assembly
7c. Evaporation tube
8. Control cock
9. Photo-multiplier, test tube and flame tube assembly
10. Sodium chloride test apparatus, general arrangement
11. Burner
12. Flow restrictor
13. Circuit diagram for E.H.T. unit
14. Photo-electric sodium chloride apparatus circuit
diagram
15. Housing wiring details
16. Dilution circuit for calibration
17. Concentration v. deflection graph

Method of test for assessment of the protection afforded by respirator canisters against particulate clouds. An improvement over the test method in BS 2577 which is now obsolescent. The test method will also be used with modifications for testing face seal leakage of respirators as required by the revision of BS 2091.

Committee	PH/4
DocumentType	Standard
Pages	42
PublisherName	British Standards Institution
Status	Superseded
SupersededBy	BS EN 13274-7:2008 BS EN 13274-7:2002

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