BS 76:1974
Withdrawn
Specification for tars for road purposes
Hardcopy , PDF
English
12-31-1974
06-01-2006
Co-operating organizations
Foreword
Specification
1 Scope
2 References
3 Definitions
4 Properties
5 Sampling
6 Testing
7 Compliance with the specification
Appendices
A Preparation of sample for testing
B Method for the determination of equiviscous
temperature
C Method for the determination of water content
D Method of distillation
E Method for the determination of softening point of
distillation residue (ring and ball test)
F Method for the determination of hardening by the
Beckton tray test
G Method for the determination of hardening by the
SEGAS test
H Method for the determination of matter insoluble in
organic solvents
J Method for the determination of density
K Bibliography
L STPTC thermometer specifications
Tables
1 Properties of surface dressing road tars
2 Properties of coated macadam road tars
3 Corrections in degrees Celsius to be applied to
temperatures of test to give evts
Figures
1 Standard tar viscometer, assembled
2 Section showing arrangement of valve support
3 Standard 10 mm tar cup and valve
4 Apparatus for ring and ball test
5 Diagrammatic sketch of direct reading evt viscometer
6 Apparatus for SEGAS test
7 Hubbard density bottle
8 Chart showing approximate relationships between evt,
viscosity and penetration
Specification for number of viscosity grades of surface dressing tars and coated macadam tars.
| Committee |
B/510
|
| DevelopmentNote |
Supersedes 72/43625 DC. (06/2004)
|
| DocumentType |
Standard
|
| Pages |
32
|
| PublisherName |
British Standards Institution
|
| Status |
Withdrawn
|
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