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BS 4400:1969
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Method for sodium chloride particulate test for respirator filters
Hardcopy , PDF
06-01-2003
English
10-06-1969
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
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