|
Movies Books Music Food Tv Shows Technology Politics Video Games Parenting Fashion Green Living more >

Wiki

The SPI resin identification coding system is a set of symbols placed on plastics to identify the polymer type. It was developed by the Society of the Plastics Industry (SPI) in 1988, and used internationally. The primary purpose of the codes is to allow efficient separation of different polymer types for recycling.

The symbols used in the code consist of arrows that cycle clockwise to form a rounded triangle and enclosing a number, often with an acronym representing the plastic below the triangle. When the number is omitted, the symbol is known as the universal Recycling Symbol, indicating generic recyclable materials. In this case, other text and labels are used to indicate the material(s) used. Previously recycled resins are coded with an "R" prefix (for example, a PETE bottle made of recycled resin could be marked as RPETE using same numbering).

Contrary to misconceptions, the number does not indicate how hard the item is to recycle, nor how often the plastic was recycled. It is an arbitrary number and has no other meaning aside from identifying the specific plastic.

The Unicode character encoding standard includes the resin identification codes, between code points U+2673 and U+2679 inclusive. The generic material recycling symbol is encoded as code point U+267A.
edit this info

Details

Select a category and then fill in some basic details that someone might want to know about this topic.
What's your opinion on Plastic Identification Codes?
rate
4 Ratings: +5.0
You have exceeded the maximum length.
More Plastic Identification Codes reviews
review by . February 09, 2010
posted in Green Living
   I'm sure you've noticed a recycling symbol with 1, 2, 3, 4, 5, 6 or 7 along with letters on most plastic products . So what are these exactly? The SPI Resin Identification Coding System is a set of symbols placed on plastics to identify the polymer type. The symbols used in the code consist of arrows that cycle clockwise to form a rounded triangle and enclosing a number, often with an acronym representing the plastic below the triangle. When the number is omitted, the …
Photos
Plastic Identification Codes
Related Topics
Earth's Best baby wipes

Moist chlorine-free baby wipes

Cradle to Cradle: Remaking the Way We Make Things

A book about sustainability by William McDonough and Michael

Trader Joe's Rice Drink

Non-dairy beverage

© 2014 Lunch.com, LLC All Rights Reserved
Lunch.com - Relevant reviews by real people.
()
This is you!
Ranked #
Last login
Member since
reviews
comments
ratings
questions
compliments
lists