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  2. Food contact materials - Wikipedia

    en.wikipedia.org/wiki/Food_contact_materials

    The symbol indicates that the material used in the product is considered safe for food contact. This includes food and water containers, packaging materials, cutlery etc. [ 3 ] The regulation is applicable to any product intended for food contact whether it be made of metals, ceramics, paper and board, and plastics or the coating. [ 4 ]

  3. Recycling codes - Wikipedia

    en.wikipedia.org/wiki/Recycling_codes

    Recycling codes on products. Recycling codes are used to identify the materials out of which the item is made, to facilitate easier recycling process.The presence on an item of a recycling code, a chasing arrows logo, or a resin code, is not an automatic indicator that a material is recyclable; it is an explanation of what the item is made of.

  4. Borosilicate glass - Wikipedia

    en.wikipedia.org/wiki/Borosilicate_glass

    Guitar slide made of borosilicate glass. Borosilicate glass is a type of glass with silica and boron trioxide as the main glass-forming constituents. Borosilicate glasses are known for having very low coefficients of thermal expansion (≈3 × 10 −6 K −1 at 20 °C), making them more resistant to thermal shock than any other common glass.

  5. How to Decode the Tupperware Symbols on Every Product

    www.aol.com/lifestyle/decode-tupperware-symbols...

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  6. Made in USA? Buyers of Chinese-Made Pyrex Getting Refunds - AOL

    www.aol.com/owners-pyrex-measuring-cups-may...

    Not Really Made in USA. Pyrex is in a lot of hot water — pun intended. Instant Brands, the maker of heat-safe Pyrex glass cookware and measuring cups, misrepresented where one of its products ...

  7. List of thermal conductivities - Wikipedia

    en.wikipedia.org/wiki/List_of_thermal_conductivities

    Polyurethane foam 0.03 [5] Silica aerogel: 0.02 [5] ... Pyrex 7740, Air Force, 1961 P 1.35 1.34 1.39 1.42 1.59 ... Steel, stainless: 16.3 [36] [123]-16.7 ...

  8. Bought Pyrex glass measuring cups? You may be getting a ... - AOL

    www.aol.com/bought-pyrex-glass-measuring-cups...

    Online shoppers who bought certain Pyrex measuring cups in recent years may be eligible for a refund. The Federal Trade Commission announced it is issuing a total of $88,000 in refunds to ...

  9. Pyrex - Wikipedia

    en.wikipedia.org/wiki/Pyrex

    Older clear-glass Pyrex manufactured by Corning, Arc International's Pyrex products, and Pyrex laboratory glassware are made of borosilicate glass. According to the National Institute of Standards and Technology , borosilicate Pyrex is composed of (as percentage of weight): 4.0% boron , 54.0% oxygen , 2.8% sodium , 1.1% aluminum , 37.7% silicon ...