BS 692:1990

Foreword
Committees responsible
Specification
1 Scope
2 Types
3 Temperature scale
4 Stem
5 Bulb
6 Annealing
7 Stabilization
8 Immersion
9 Scale lines
10 Figuring
11 Construction
12 Sheath
13 Top finish
14 Expansion chamber
15 Spirit filling
16 Maximum and minimum thermometers: special provisions
17 Inscriptions
Appendices
A Thermometric glasses approved by the National
    Physical Laboratory
B Testing of meteorological thermometers
C Method of test for the absence of amines in spirit
    filling
D Meteorological thermometers with a Fahrenheit scale
Tables
1 Dimensions for meteorological thermometers
2 Ranges and tolerances for meteorological
    thermometers (Celsius scale)
3 Identification stripe(s) or approved abbreviations
    and normal maximum working temperature of all
    glasses that have been approved for the manufacture
    of thermometer bulbs
4 Ranges and tolerances for meteorological
    thermometers (Fahrenheit scale)
Figures
1 Suitable support for thermometers in a louvred
    screen
2 Typical graduation and figuring for British
    Standard Celsius meteorological thermometers
3 Details of button at top of ordinary thermometer
4 Details of clips on thermometer support