What is BS 7476 - Specification of flexible non-reinforced polyethylene film about?
BS 7476 discusses the specification for polyethylene film for covering silage. Polyethylene film is a plastic film made from ethylene, a hydrocarbon that is mainly obtained from natural gas or petroleum.
BS 7476 specifies the requirements for, and the dimensional tolerances of, flexible non-reinforced polyethylene film suitable for covering silage, available in widths above 4 m and thicknesses greater than 125 4m.
Who is BS 7476 - Specification of flexible non-reinforced polyethylene film for?
BS 7476 on the specification of flexible non-reinforced polyethylene film is useful for:
- Polyethylene film manufacturers
- Design engineers
- Quality control personnel
Why should you use BS 7476 - Specification of flexible non-reinforced polyethylene film?
Polyethylene film is commonly used as a protective barrier in applications such as concrete and mortar, exterminating, pest control, waterproofing, painting, and renovations. For the purposes of BS 7476, the definitions applied are tensile strength, percentage elongation at break, machine direction and transverse direction. The polyethylene film is manufactured from a base material consisting of polyethylene, linear low-density polyethylene or a copolymer in which ethylene is the major constituent.
The material may contain stabilizers, pigments, or other additives. The film is in the form of a sheet and is free from defects and mechanical damage. The film may be supplied folded in any form as agreed between the purchaser and the supplier. The film should be of a homogeneous nature and all pigments or other additives should be uniformly dispersed. All samples are conditioned at 23 ± 2 °C for not less than 1 h before testing or the measurement of dimensions, and all testing and measurements are carried out at 23 ± 2 °C. Polyethylene films are insensitive to changes in the relative humidity of the atmosphere and there is no necessity for the preconditioning of samples to a standard relative humidity. Using BS 7476 you can understand the specification of flexible non-reinforced polyethylene film suitable for covering silage.