BS 1284:1960
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Specification for bleached lac
Hardcopy , PDF
15-08-1997
English
28-06-1991
Cooperating organizations
Foreword
Specification
Mandatory Clauses
1. Scope
2. Definition
3. Appearance and colour
4. Sample
5. Volatile matter
6. Matter insoluble in hot alcohol
7. Matter soluble in water
8. Ash
9. Wax
10. Copals
11. Rosin
12. Free chlorine
13. Expression of analytical results
Optional Clauses
14. Colour index
15. Non-volatile matter soluble in cold alcohol
16. Acid value
17. Free mineral acid
18. Total chlorine
19. Arsenic
20. Lead
Appendices
A. Sampling
B. Method for the determination of volatile matter
C. Method for the determination of matter insoluble
in hot alcohol
D. Method for the determination of matter soluble in
water
E. Method for the determination of ash
F. Methods for the determination of wax
G. Method for the detection of copals
H. Method for the detection of rosin (Halphen-Hicks)
I. Method for the detection of free chlorine
J. Method for the determination of colour index
K. Method for the determination of non-volatile matter
soluble in cold alcohol
L. Method for the determination of acid value
M. Method for the determination of free mineral acid
N. Method for the determination of total chlorine
O. Method for the determination of arsenic
P. Methods for the determination of lead
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