Enamlevinumad polümeeride lähtematerjalid · Kõik plastid on polümeerid aga kõik polümeerid pole plastid. Mõned tuntud polümeerid, mis pole plastid on tärklis (ingl k starch), valgud (aminohappe polümeerid), DNA. · The simplified diagram below shows the relationship between monomers and polymers. Identical monomers can combine with each other to form homopolymers, which can be straight or branched chains. Different monomers may combine together to form copolymers, which also may be branched or straight. · plastid on polümeerid- see tähendab, et nad koosnevad tuhandetest samadest polüetüleen, millest on tehtud aatomidest. Näiteks materjal kilekotid koosneb etüleenist valemiga c2h4.
requirements, supplier status and the impact of raw materials on the finished product 4.11.1 Raw materials, semi-processed and finished products, as well as packaging, shall be checked against the specifications on receipt and in accordance with determined inspection plan. All results shall be documented trolled at the level of primary production or foils) migration of monomers into the slaughter and cannot be eliminated by the product. processing plant upon receipt or later. Hence, Specifications (e.g., of microbiological in the aftermath of the BSE crisis and and chemical parameters) should always be other meat-related scandals, regulations based on scientific evidence and current leg- were issued to ensure traceability. Moreover, islation and standards, and should always
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