This code was issued by The Society of Plastic Industry in 1988 in the United States and was adopted by institutions developing code systems, such as ISO (International Organization for Standardization).
In general, the plastic identifier:
- located or located at the base,
- a triangle formed from 3 arrows
- inside the triangle there will be a number,
- as well as the name of the plastic type under the triangle.
Code 1
PET or PETE (politilena terephthalate). Type 1 recycling is most commonly used for bottles of soft drinks, mineral water bottles, plastic beer bottles, plastic peanut butter jars, salad spice bottles, and vegetable oils, and food trays. If recycled, then this plastic is made into polar fabric fleece, bag clothing, furniture, carpets, and new beverage containers.
Code 2
HDPE (High density politilena). Type 2 recycling is used for milk and juice jugs, cleaning bottles, yoghurt containers, trash plastic bags, and cereal box coatings. Recycled back into bottles, pens, and building materials.
Code 3
V (Vinyl) or PVC. Type 3 recycling is found in glass cleaner bottles, washing bottles and shampoo bottles, as well as clear food packaging plastic, siding, windows, pipes, and medical supplies. Sometimes it is recycled by plastic board makers into building materials.
Code 4
LDPE (low density politilena). Look for Type 4 recycling on push bottles and plastic shopping bags, dry clean suit bags, or bread bags. Recycled into upholstery bins, envelopes, and plastic boards.
Code 5
PP (polypropylene). Type 5 recycling comes from straws, yoghurt containers, syrup bottles, ketchup bottles, pill bottles, and bottle caps. Changed into rakes, brooms, batteries, and trays.
Code 6
PS (polystyrene). Type 6 recycling is used for disposable plates and bowls, solid disc containers (CDs), egg cartons, food containers for take-out, and aspirin bottles. Recycled into foam packs, seals, egg cartons, and food containers to take home again.
Code 7
Others. Type 7 recycling includes refillable water bottles, 'bulletproof' materials, glasses, DVD containers, iPod containers, and nylon. Not often recycled, but sometimes converted into plastic boards.
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