BS 718:1960

Co-operating organizations
Foreword
Guide to intending purchasers of
British Standard hydrometers
            
          SPECIFICATION
1. Scope
2. Definitions
3. Principal features
4. Materials and workmanship
5. Form
6. Dimensions
7. Scale
8. Basis of scale
9. Surface tension
10.Tolerances
11.Inscriptions
        
         APPENDICES
A - Testing of B.S. hydrometers
B - Determination of density and
    specific gravity by means of
    B.S. hydrometers
C - Tables for measuring liquid in
    bulk
D - Vessels for hydrometer observations
E - Buoyancy corrections
F - Density of distilled water
G - Differences between readings on
    hydrometers graduated on the various
    bases of scale permitted by this
    standard

Defines five series of hydrometers for general use, which are graduated either to indicate density (g/ml)at 20 degrees C or to indicate specific gravity 60/60 degrees F.