BS 3279:1960
Current
The latest, up-to-date edition.
Specification for seedlac
Hardcopy , PDF
English
31-10-1960
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Cooperating organizations
Foreword
Specification
Mandatory clauses
1. Scope
2. Description
3. Sample
4. Volatile matter
5. Matter insoluble in hot alcohol
6. Expression of analytical results
Optional clauses
7. Colour index
8. Matter soluble in water
9. Non-volatile matter soluble in cold alcohol
10. Wax
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 colour index
E. Method for the determination of non-volatile matter
soluble in cold alcohol
F. Method for the determination of matter soluble in
water
G. Method for the determination of wax
Six grades. Description, sample, volatile matter, matter insoluble in hot alcohol, expressing analytical results. Optional clauses: colour index, matter soluble in water, non-volatile matter soluble in cold alcohol, wax.
| Committee |
STI/10
|
| DevelopmentNote |
Supersedes BS 954(1941) (07/2005) Reviewed and confirmed by BSI, February 2011. (01/2011)
|
| DocumentType |
Standard
|
| Pages |
14
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
This British Standard specifies requirements for seedlac, the product obtained by washing crushed sticklac, the natural product of the lac insect (Laccifer lacca). Unless otherwise agreed between purchaser and vendor, the seedlac shall be of Indian origin and shall be of the crop implied by the grade name employed.
Six grades are specified, as follows:
Golden Kusmi
Kusmi No. 1
Kusmi No. 2
Golden Bysacki
Fine Bysacki
Ordinary Bysacki
| Standards | Relationship |
| ISO 55:1977 | Similar to |
| BS 410:1962 | Specification for test sieves |
| BS 1957:1953 | Presentation of numerical values (fineness of expression; rounding of numbers) |
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