BS 593:1989
Current
The latest, up-to-date edition.
Specification for laboratory thermometers
Hardcopy , PDF
English
31-01-1990
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Foreword
Committees responsible
Specification
1 Scope
2 Type
3 Temperature scale
4 Material
5 Construction
6 Annealing
7 Stabilization
8 Graduation and figuring (including immersion line)
9 Marking
Appendices
A Testing of thermometers
B Thermometric glasses approved by the National
Physical Laboratory
C Stabilization test
D Emergent liquid column temperatures for partial
immersion thermometers
Tables
1 Details of total immersion Celsius thermometers
2 Details of partial immersion Celsius thermometers
3 Details of total immersion Fahrenheit thermometers
4 Details of partial immersion Fahrenheit thermometers
5 Uncertainty of test for certification of laboratory
thermometers with Celsius scales
6 Uncertainty of test for certification of laboratory
thermometers with Fahrenheit scales
7 Identification stripe(s) or approved abbreviation and
normal maximum working temperature of all glasses
that have been approved for the manufacture of
thermometer bulbs
8 Recommended average temperature of emergent liquid
column for series A and B thermometers
9 Recommended average temperature of emergent liquid
column for series F thermometers
Figures
1 Examples of figuring for laboratory thermometers
2 Diagrammatic indication of graduation of laboratory
thermometers
Three series of accurate laboratory thermometers of solid-stem, mercury-in-glass type, overall length about 400 mm; Series A and B are graduated in either Celsius or Fahrenheit for either total or partial immersion. Appendix gives procedure and recommended values for average emergent liquid column temperature for partial immersion thermometers.
| Committee |
LBI/1/2
|
| DevelopmentNote |
Supersedes 88/56005 DC and BS 593(1974) (09/2005) Reviewed and confirmed by BSI, October 2012. (09/2012)
|
| DocumentType |
Standard
|
| Pages |
22
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
This British Standard specifies requirements for series A, B and F laboratory thermometers (see foreword) calibrated either for total or for partial immersion, covering the overall temperature ranges − 30 °C to + 400 °C and − 23 °F to + 320 °F.
NOTE The titles of the publications referred to in this standard a relisted on the inside back cover.
| BS 1704:1985 | Specification for solid-stem general purpose thermometers |
| BS 5074:1974 | Specification for short and long solid-stem thermometers for precision use |
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