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BSI BS 7897-2:1997

Specification for lac and shellac -- Machine-made shellac
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BSI BS 7897-2:1997

Specification for lac and shellac -- Machine-made shellac

PUBLISH DATE 1997
PAGES 44
BSI BS 7897-2:1997
WITHDRAWN, 12/1/2011
Specifies four main types of machine-made shellac based on different methods of manufacture. Each type is graded on the basis of colour. Requirements for matter insoluble in hot alcohol are given along with optional requirements for: volatile matter, wax, ash, lead and grit content, matter soluble in water, iodine and acid values, heat polymerisation and flow tests.
SDO BSI: British Standards Institution
Document Number 7897-2
Publication Date Aug. 15, 1997
Language en - English
Page Count 44
Revision Level
Supercedes
Committee STI/10
Publish Date Document Id Type View
Aug. 15, 1997 BS 7897-2:1997 Revision