BS 76:1974
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
Specification for tars for road purposes
Hardcopy , PDF
01-06-2006
English
31-12-1974
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
Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.