BS ISO 16900-4:2011:2013 Edition
$142.49
Respiratory protective devices. Methods of test and test equipment – Determination of gas filter capacity and migration, desorption and carbon monoxide dynamic testing
| Published By | Publication Date | Number of Pages |
| BSI | 2013 | 26 |
This part of ISO 16900 specifies the test method for determining the gas capacity of separate or integral gas filters and combined filters for respiratory protective devices. It includes the validation test at specified flow rates, a desorption test to access the ability of the filter to retain the adsorbed or absorbed gas, and carbon monoxide dynamic testing.
NOTE These tests are conducted in laboratories using specified test agents under specified conditions and therefore do not indicate the performance of the device in actual use.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 6 | Foreword |
| 7 | Introduction |
| 8 | 1 Scope 2 Normative references 3 Terms and definitions |
| 9 | 4 Prerequisites 5 General test requirements |
| 10 | 6 Principles 6.1 Sorption tests 6.2 Migration and desorption tests 6.3 Carbon monoxide (CO) dynamic testing of type CO filter 7 Apparatus 7.1 Apparatus for constant flow 7.2 Challenge gas generator |
| 11 | 7.3 Test chamber 7.4 Detector 7.5 Apparatus for dynamic flow |
| 14 | 8 Methods 8.1 General 8.2 Test flow conditions |
| 15 | 8.3 Gas capacity test |
| 16 | 8.4 Gas filter validation test at specified flow rates 8.5 Migration test A and Migration test B |
| 17 | 8.6 Desorption test 9 Test report 9.1 General 9.2 Gas capacity test 9.3 Gas filter validation test at specified flow rates 9.4 Migration test 9.5 Desorption test 9.6 CO dynamic test 10 Uncertainty of measurement |
| 18 | Annex A (normative) Application of uncertainty of measurement |
| 20 | Annex B (informative) Alternative method for the gas filter validation test at specified flow rates |
| 23 | Bibliography |
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