BS 3722:1964 - Specification for machine-made shellac

BS 3722:1964

Specification for machine-made shellac

Status : Superseded, Withdrawn   Published : February 1964 Replaced By : BS 7897-2:1997, ISO 56-2:1979

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Specifies four main types of machine-made shellac based on different methods of manufacture. Each of the types is graded on the basis of colour. Requirements for scope and description, appearance and colour, colour index, wax, matter insoluble in hot alcohol, orpiment, rosin and the method for expressing the analytical results are given. In addition, optional requirements for different users for volatile matter, non-volatile matter soluble in cold alcohol, clarity of cold alcoholic solution (types III and IV only), ash, grit, flow, life under heat, water-soluble acidity or alkalinity, acid value, iodine value, arsenic, lead and adhesion to mica are also given. The relevant methods of test are given in the appendices.




Standard NumberBS 3722:1964
TitleSpecification for machine-made shellac
StatusSuperseded, Withdrawn
Publication Date27 February 1964
Confirm Date15 July 1991
Withdrawn Date15 August 1997
Normative References(Required to achieve compliance to this standard)No other standards are normatively referenced
Informative References(Provided for Information)No other standards are informatively referenced
Replaced ByBS 7897-2:1997, ISO 56-2:1979
Amended ByAMD 6367
Draft Superseded By90/56486 DCAA(PVC)1850
DescriptorsLac, Resins (natural), Coatings, Varnishes, Lacquers, Grades (quality), Colour, Insoluble matter determination, Ash determination, Volatile matter determination, Non-volatile matter determination, Determination of content, Waxes, Grit, Rosin, Arsenic, Lead, Sampling methods, Specimen preparation, Testing conditions, Test equipment, Design, Dimensions, Colour tests, Solvent extraction methods, Flow measurement, Heating tests, Acid number, Iodine number, Chemical analysis and testing, Acidity, Alkalinity, Adhesion tests, Mica
ICS87.040
Title in FrenchGomme-laque faite a la machine. Specification
Title in GermanMaschinell gefertigter Schellack. Spezifikation
CommitteeSTI/10
PublisherBSI
FormatA4
DeliveryNo
Pages44
File Size4.205 MB
Price£186.00


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