BS 791:1990

Foreword
Committees responsible
Specification
1. Scope
2. Type
3. Temperature scale
4. Immersion
5. Glass
6. Gas filling
7. Construction
8. Graduation and figuring
9. Accuracy
10. Marking
Appendices
A. Thermometric glasses approved by the National
     Physical Laboratory
B. Testing of thermometers
Tables
1. Dimensions
2. Graduation
3. Identification stripe(s) or approved
     abbreviations and normal maximum working
     temperatures of all glasses that have been
     approved for the manufacture of thermometer
     bulbs
Figures
1. Solid-stem calorimeter thermometer
2. Alternative types of graduation and figuring

Requirements for a series of short-range thermometers for bomb calorimetry and for where an accurate measurement of temperature changes is needed.

This British Standard specifies requirements for a series of short-range solid-stem thermometers for use in bomb calorimetry and for other purposes where an accurate measurement of a change of temperature is required. The thermometers are not provided with auxiliary scales at 0 °C and are therefore not suited to the absolute measurement of temperature (which is not normally required in calorimetry) unless they are checked against a standard thermometer immediately before use.

NOTE The titles of the publications referred to in this standard are listed on the inside back cover.