BS 5248:1990
Current
The latest, up-to-date edition.
Specification for aspirated hygrometer
Hardcopy , PDF
English
05-31-1990
Foreword
Committees responsible
Specification
Section one. General
1. Scope
Section two. Thermometers
2. Types
3. Range
4. Temperature scale
5. Material
6. Annealing
7. Stabilization
8. Construction
9. Graduation and figuring
10. Accuracy
11. Marking
Section three. Frame
12. General
13. Radiation shields
14. Aspiration motor
15. Thermometer locating holes
16. Ventilation rate
17. Carrying case and accessories
18. Marking of carrying case and frame
Appendices
A. Method of use of aspirated hygrometer
B. Tables suitable for use with aspirated hygrometers
C. Errors in computed relative humidity due to
thermometer errors
D. Thermometric glasses approved by the National
Physical Laboratory
E. Testing of thermometers
Tables
1. Dimensions for thermometer
2. Maximum error in computed relative humidity due
to thermometer error
3. Indication strip(s) or approved abbreviations and
normal maximum working temperature of all glasses
that have been approved for the manufacture of
thermometer bulbs
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