17/30352210 DC : 0
NA
Status of Standard is Unknown
BS ISO 21925-1 - FIRE RESISTANCE TESTS - FIRE DAMPERS FOR AIR DISTRIBUTION SYSTEMS - PART 1: MECHANICAL DAMPERS
Hardcopy , PDF
English
Foreword
Introduction
1 Scope
2 Normative references
3 Definitions
4 Principles of the test
5 Apparatus
6 Test construction
7 Determination of leakage of connecting duct and
measuring station
8 Determination of leakage at ambient temperature
9 Fire test
10 Classification and criteria
11 Test report
12 Direct field of application of test results
Annex A (informative) - Explanatory material about the
test methods historical information
Annex B (informative) - Alternative thermal release mechanisms
Annex C (informative) - Test of thermal release mechanisms
Annex D (informative) - Reliability tests for thermal release
mechanisms
BS ISO 21925-1.
| Committee |
FSH/22/-/4
|
| DocumentType |
Draft
|
| Pages |
54
|
| PublisherName |
British Standards Institution
|
| Status |
NA
|
| ISO 5167-1:2003 | Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full — Part 1: General principles and requirements |
| ISO 5221:1984 | Air distribution and air diffusion — Rules to methods of measuring air flow rate in an air handling duct |
| ISO 834-1:1999 | Fire-resistance tests — Elements of building construction — Part 1: General requirements |
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