09/30182723 DC : 0
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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BS 7942 - THERMOSTATIC MIXING VALVES FOR USE IN CARE ESTABLISHMENTS - REQUIREMENTS AND TEST METHODS
Hardcopy , PDF
English
31-01-2011
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Materials in contact with water
5 Classifications
6 Integral backflow prevention devices
7 Removable devices
8 Specimens
9 Leaktightness
10 Durability
11 Performance
12 Designation
13 Marking
14 Installation and operating instructions
Annexes
Annex A (normative) - Apparatus and measurements for durability
test on thermostat
Annex B (normative) - Test for the durability of on/off flow
control
Annex C (normative) - Test for the durability of manual
diverters
Annex D (normative) - Test for the durability of diverters with
automatic return
Annex E (normative) - Test for the durability of thermostat
Annex F (normative) - Apparatus for performance tests
Annex G (normative) - Determination of thermometer response
time
Annex H (normative) - Test for flow rate and sensitivity of
temperature control
Annex I (normative) - Tests for TMVs with electronic temperature
adjustment
Annex J (normative) - Test for mixed-water temperature overshoot
on operation diverter (manual or automatic return)
Annex K (normative) - Test for mixed-water temperature overshoot
on operation second outlet
Annex L (normative) - Test for mixed-water temperature overshoot
starting from ambient temperature
Annex M (normative) - Test for mixed-water temperature overshoot
on adjustment mixed-water temperature
Annex N (informative) - Assessment of transient values
Annex O (normative) - Test for thermal shut-off
Annex P (normative) - Test for temperature stability with
changing water supply pressure
Annex Q (normative) - Test for temperature stability with changing
water supply temperature
Annex R (normative) - Test for temperature stability at reduced
flow rate
Annex S (normative) - Additional testing after failure to meet
performance and durability requirements
Annex T (informative) - Summary of thermal performance
requirements
Annex U (informative) - Recommendations on commissioning and
in-service tests
Annex V (informative) - Frequency of in-service tests
Bibliography
| Committee |
B/504/-/8
|
| DocumentType |
Draft
|
| Pages |
68
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy |
| BS EN 1111:2017 | Sanitary tapware. Thermostatic mixing valves (PN 10). General technical specification |
| BS EN 1287:2017 | Sanitary tapware. Low pressure thermostatic mixing valves. General technical specification |
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