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BS 7344:1990

Current
Current

The latest, up-to-date edition.

Specification for reeled low density polyethylene film for general purpose application
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

31-08-1990

Publisher

British Standards Institution

Committees responsible
Foreword
Specification
1. Scope
2. Definitions
3. Composition
4. Appearance and finish
5. Conditioning of test specimens
6. Dimensional tolerances
7. Classification
8. Marking
Appendices
A. Additional properties to be agreed between purchaser
    and manufacturer
B. Specimen orientation for the determination of gloss
C. Method to determine resistance to opening of blocked
    polyethylene layflat tubular film
D. Common trade abbreviations
Tables
1. Spot thickness and average thickness tolerances
2. Yield tolerance for a consignment of reels
3. Classifying properties
4. Additional properties
Figures
1. General arrangement for determination of resistance
    to opening of blocked layflat tubular film
2. Common trade abbreviations

Specifies tolerances on length, width and thickness and details a classification system to cover basic physical characteristics. Also lists additional optional properties with corresponding test methods.

This British Standard specifies unprinted low density (≤ 927 kg/m3) polyethylene film in the form of sheet or layflat tubing, excluding coextrusions, in the thickness range 25 µm to 300 µm, available in widths up to 2 m (i.e. up to 4 m centre folded). It includes tolerances on the length, width, weight and thickness of the film, and a classification system covering certain basic physical characteristics. This standard excludes special films.

NOTE The titles of the publications referred to in this standard are listed on the inside back cover.

Committee
PRI/75
DevelopmentNote
Supersedes 89/39138 DC. (09/2005) Reviewed and confirmed by BSI, December 2011. (11/2011)
DocumentType
Standard
Pages
12
PublisherName
British Standards Institution
Status
Current

DEFSTAN 47-32/2(2011) : 2011 RUBBER HOSE AND HOSE ASSEMBLIES FOR FLUID POWER SYSTEMS
DEFSTAN 93-116/3(2016) : 2016 POLYETHYLENE (LOW DENSITY) FILM FOR PACKAGING TYPES 1, 2 AND 3
DEFSTAN 47-032/3(2017) : 2017 RUBBER HOSE AND HOSE ASSEMBLIES FOR FLUID POWER SYSTEMS
BS 7476:1991 Specification for polyethylene film for covering silage

BS 2782-8 Method 824A:1984 Methods of testing plastics. Other properties Determination of coefficients of friction of plastics film
BS 2782-3 Methods 326A to 326C:1977 Methods of testing plastics. Mechanical properties Determination of tensile strength and elongation of plastics films
BS 2782-3 Method 352D:1979 Methods of testing plastics. Mechanical properties Determination of falling weight impact resistance of thin flexible sheet (film)
DEFSTAN 93-13/1(1976) : 1976 AMD 1 POLYETHYLENE (LOW DENSITY) FILM FOR PACKAGING
BS 4432-3:1980 Methods for determining optical properties of pulp, paper and board Determination of opacity (paper backing) of paper and board by the diffuse reflectance method
BS 2782-6 Method 631A:1982 Methods of testing plastics. Dimensional properties Determination of gravimetric thickness and yield of flexible sheet
DEFSTAN 93-20/1(1976) : 1976 AMD 1 POLYETHYLENE (LOW DENSITY) FILM, BLACK, OPAQUE, FOR PACKAGING
BS 2782-8:Methods 823A and 823B:1978 Methods of testing plastics. Other properties Methods for the assessment of carbon black dispersion in polyethylene using a microscope
BS 2782-6 Method 632A:1982 Methods of testing plastics. Dimensional properties Determination of length and width of flexible sheet
ASTM D 1746 : 2015 : REDLINE Standard Test Method for Transparency of Plastic Sheeting
ISO 8296:2003 Plastics — Film and sheeting — Determination of wetting tension

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