PLASTIC SHEETING, 4x60m, white/white, 6 bands, folded bundle
Valid Article
OC subscriptions: included in supply or field order tools (e.g. UniField)
|
|
SC subscriptions: included in supply or field tools
|
|
OC validations: approved for procurement and use by an OC for international or local orders specifying context and activity in Medical Standard Lists (MSL)
|
|
PLASTIC SHEETING, white
Definition
Woven sheeting made of opaque plastic.
Many uses in emergency situations: temporary family or community shelters, latrines, foot baths in cholera camps, groundsheets for tents, room partition, protection against rain etc.
Specifications
Material
- Woven structure: high density polyethylene (HDPE), black (provides some privacy)
- Lamination material: low density polyethylene (LDPE), white on at least one side (reflects heat better in hot climates)
- 6 reinforcement bands of 7.5 cm width, made of woven HDPE, laminated on both sides
- Sheets only:
- 1 strong aluminium eyelet every metre ± 5% on edges
- sealed on all sides (or 2 sides heat-sealed and two sides double stitched), with nylon or HDPE rope in them
Technical specifications
- Weight: 200g/m² ± 5% (ISO 3801), plus 10% for reinforcement bands. NB: lighter materials can also be considered provided they meet the specifications given below
- Tensile strength:
- outside the reinforcement bands: minimum 500N (ISO 1421)
- within the reinforcement bands: minimum 700N (ISO 1421)
- Tear strength outside the reinforcement bands: minimum 100N (ISO 1421)
- Seams:
- maximum 1 seam along the middle
- minimum 80% of the original sheet strength in the weft direction
- UV resistance: minimum 80% of the original sheet strength (ISO 1421) after 1500 hours UV under ASTM G53/94 and not less than 475N.
- Temperature resistance: from -20 to +80º C
- Flame retardant: under study (not prooven yet)
- Width: 4 metre
- Length: rolls of 60 m or sheets of 6 m
- Printing:
- manufacturer's name, month and year of production
- markings every metre (to aid cutting)
Instructions for use
See the Oxfam reference document on plastic sheeting (see "Related Articles" below)
With a 60 x 4 m roll, 3 different types of 16 m² surface area shelter can be made:
Basic | Open | Closed | |
Tent cover (6x4m) | 10 | 6 | 4 |
Groundsheet (4x4m) | 6 | 4 | |
Closing end, pair (4x4m) | 4 |
The strongest way to attach a plastic sheet is to wrap a stone in the sheet and knot a cord around the neck.
It is also possible to use eyelets designed for this purpose (see "Related Articles" below).
Caution: plastic slackens in heat: shelters should be tightened during the day to prevent flapping.
To prevent the sheets from tearing or ripping, it is recommended:
- not to make holes outside the reinforcement bands
- to use a piercing tool such as an awl instead of a knife.
Repairs can be done with reinforced adhesive tape.
To make walls or fences, split the sheet lengthwise into two pieces of 2 m wide, by cutting the seam between the two central bands.
Marks every metre allow the sheet to be cut without using a tape measure.
