On any product ( for ex. Plastic food container) . There is a recycling symbol with a number insider

On any product ( for ex. Plastic food container) . There is a recycling symbol with a number inside ( ie. 1,2,3,...). I understand that they are the numbers that tell you what class the product resides into the chain of recycling. ( Which one is the most biodegradable, etc...) I want to know where do I read about this classifications? As I have a food container in my hand which says '6' inside the triengle.

Thank you in advance.

On any product ( for ex. Plastic food container) . There is a recycling symbol with a number insider ( ie. 1,2ie tab

here is a link which describes the differences in the number classification system.

http://recycling.stanford.edu/recycling/...

#1 PETE: Polyethylene Terephthalate.

Commonly used in soft drinks, juice, and cough syrup containers and microwave trays.

#2 HDPE: High Density Polyethylene.

Commonly used in milk jugs, detergent and shampoo bottles.

#3 V: Polyvinyl Chloride.

Commonly used in film for meat packaging and some rigid plastic containers.

#4 LDPE: Low Density Polyethylene.

Commonly used in newspaper and grocery bags and butter cups lids.

#5 PP: Polypropylene.

Commonly used in yogurt containers and deli trays.

#6 PS: Polystyrene.

Commonly used in plastic cups and plates and to-go containers.

#7 OTHER: Other mixed resins.

Commonly used in mixed plastic containers or plastic products.

my local recyclers take only #1 and 2. perhaps the options are greater in larger towns...?

On any product ( for ex. Plastic food container) . There is a recycling symbol with a number insider ( ie. 1,2windows mobile internet explorer

Though I do not know the significance of the numbers, I know that my local council (Sutton) will only recycle numbers 1, 2, and 3 or 01, 02, and 03. Apparently their plastic recycling is done by an company that only has the facilities to process these three types of plastic AND make it financially viable.
I think the numbers doesn't mean which is more recyclable than another but it tells sorters what type of plastic it is so it can be

recycled with other similar types of materials, because different plastics have different formulations and it's easier to recycle them if you keep similar plastics together.
The number stamped tells you what kind of plastic it is. The reason for the number is so you can recycle it in the proper bin. I just rinse my plastic and then take a whole trunkload to recycling some nice day and sort it out there.