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BSI
BS 2782-6:Methods 620A to 620D:1991

BS 2782-6:Methods 620A to 620D:1991

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Methods of testing plastics. Dimensional properties Determination of density and relative density of non-cellular plastics - Methods 620A to 620D:Determination of density and relative density of non-cellular plastics

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

26-09-2003

Publisher

British Standards Institution

1 Scope and field of application
2 References
3 Definitions
4 Conditioning
5 Methods
6 Correction for buoyancy of air
7 Test report
Annex - Liquid systems for density gradient columns

Four methods for plastics in the form of sheet, film, tube, powder, granules, etc.

1.1 This International Standard specifies four methods for the determination of the density and relative density of non-cellular plastics in the form of sheet, film, tube, moulded objects, and moulding powders, granules and pellets.

– Method A

Immersion method for plastics in a finished condition, whether machined or otherwise formed (see 5.1.3), but not powders.

– Method B

Pyknometer method for plastics in the form of powder, granules, pellets, flake or moulded articles reduced to small particles.

– Method C

Titration method for plastics in forms similar to those required for method A, including pellets.

– Method D

Density gradient column method for plastics in forms similar to those required for method A, and including pellets. Density gradient columns are columns of liquid, the densities of which increase uniformly from top to bottom. They are particularly suited to measurement of small samples of products and to comparison of densities.

Committee
PRI/21
DevelopmentNote
To be read in conjunction with BS 2782-0(1995) (10/2003) Supersedes BS 2782-6.620A.D(1980), BS 3715(1964) & 85/38971 DC (03/2004)
DocumentType
Standard
Pages
16
PublisherName
British Standards Institution
Status
Current
SupersededBy
Supersedes

Standards Relationship
ISO 1183:1987 Identical

DEFSTAN 93-18/2(1989) : 1989 PHENOLIC RESIN BONDED FABRIC MOULDINGS, NATURAL, TYPE QX
BS 3412:1992 Methods of specifying general purpose polyethylene materials for moulding and extrusion
BS 2782-6:Method 631A:1993 Methods of testing plastics. Dimensional properties Determination of gravimetric thickness and yield of flexible sheet
BS 7825-3.6:1997 Calibration of rubber and plastics test equipment. Calibration schedules Dimensional properties
BS 771:1992 Specification for phenolic moulding materials
BS 6404-13:1996 Magnetic materials Methods of measurement of density, resistivity and stacking factor of electrical steel sheet and strip
DEFSTAN 93-116/1(2000) : 2000 POLYETHYLENE (LOW DENSITY) FILM FOR PACKAGING TYPES 1, 2 AND 3
DEFSTAN 93-10/2(1995) : 1995 PHENOLIC MOULDINGS MADE FROM TYPE QX MATERIAL
BS 6564-2:1991 Polytetrafluoroethylene (PTFE) materials and products Specification for fabricated unfilled polytetrafluoroethylene products
BS 4932:1973 Specification for heavy duty low density polyethylene sacks

ISO 291:2008 Plastics Standard atmospheres for conditioning and testing

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Hardcopy - English
PDF - English
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