I.Ngwa:
A na-ejikarị ngwaọrụ nnwale nrụgide gburugburu ebe obibi eme ihe iji nweta ihe mgbawa na mbibi nke ihe ndị na-abụghị ọla dịka plastik na roba n'okpuru nrụgide ogologo oge n'okpuru ebe ọ ga-amịpụta. A na-atụ ikike nke ihe ahụ iguzogide mmebi nrụgide gburugburu ebe obibi. A na-eji ngwaahịa a eme ihe nke ukwuu na plastik, roba na mmepụta ihe polymer ndị ọzọ, nyocha, nnwale na ụlọ ọrụ ndị ọzọ. Enwere ike iji mmiri ọkụ nke ngwaahịa a dị ka ngwa nnwale onwe ya iji gbanwee ọnọdụ ma ọ bụ okpomọkụ nke ihe nlele ule dị iche iche.
II.Ụkpụrụ Nzukọ:
ISO 4599–《 Plastik - Mkpebi nke iguzogide mgbawa nrụgide gburugburu ebe obibi (ESC) - Usoro eriri gbagọrọ agbagọ》
GB/T1842-1999–《Ụzọ nnwale maka nrụgide gburugburu ebe obibi nke plastik polyethylene》
ASMD 1693–《Ụzọ nnwale maka nrụgide gburugburu ebe obibi nke plastik polyethylene》