BS 7344:1990
Current
The latest, up-to-date edition.
Specification for reeled low density polyethylene film for general purpose application
Hardcopy , PDF
English
31-08-1990
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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.
| 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
|
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.
| 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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