Muaj 7 hom khoom siv yas:
No.1 yas yog ua los ntawm PET;
No. 2 yas, HDPE khoom;
No. 3 yas, PVC khoom;
No. 4 yas, PE khoom;
No. 5 yas, ua los ntawm PP;
No.6 yas, PS khoom;
No.7 yas, yog LWM (lwm yam)
Ntawm cov plastics no, tsuas yog No. 1, No. 5 thiab No. 7 plastics muaj feem cuam tshuam rau kev xa khoom thiab tuaj yeem siv rau ntim khoom noj!
⑴ Ua ntej ntawm tag nrho cov, No. degree. 【Ceeb Toom: Tsis txhob muab dej kub tso rau hauv lub raj mis ua los ntawm cov khoom no! Tom qab nws tau rhaub, nws yuav tso cov tshuaj lom DEHP; Nws raug nquahu kom tsis txhob siv cov khoom siv no ntev, vim tias DEHP tseem yuav raug tso tawm hauv li 10 lub hlis].
⑵ Tom ntej no, cia peb tham txog No.7 yas. Pawg no muaj ntau yam ntaub ntawv. Cov khoom no feem ntau yog siv los ua cov khoom yas xws li cov me nyuam lub raj mis thiab khob.
Qhov ntau thiab tsis sib haum xeeb yog cov khoom siv PC. Vim tias cov khoom siv PC (polycarbonate) muaj bisphenol A uas ua rau tib neeg lub cev tsis zoo, qhov kub thiab txias ntau dua, bisphenol A yuav raug tso tawm ntau dua, yog li nws pom zoo kom siv lub khob dej ua los ntawm PC khoom No. 7, tsis txhob tuav. Cov dej kub, tshwj xeeb tshaj yog tsis yog dej kub tshaj 80 degree.
Tau kawg, No. 7 yas kuj muaj cov ntaub ntawv uas tsis muaj bisphenol A. Thaum peb xaiv yuav lub khob, peb tuaj yeem tshawb xyuas seb puas muaj lub logo "tritan" nyob hauv qab ntawm lub raj mis. Yog tias muaj, nws txhais tau tias nws tsis muaj bisphenol A.
(3) Tom ntej no, cia peb tham txog No. 5 yas —— PP yas.
PP tam sim no lees paub tias yog cov yas zoo tshaj plaws, nws ① tsis muaj bisphenol A, ② tuaj yeem ua kom sov hauv lub qhov cub microwave, ③ tuaj yeem rov ua dua;
Feem ntau yog cov thawv noj su, cov thawv ntim khoom tshiab
[Kev saib xyuas tshwj xeeb: Qee lub thawv noj su hauv khw yog ua los ntawm PP, tab sis lub hau yog ua los ntawm lwm cov yas, yog li thaum cua sov, nco ntsoov tshem lub hau ua ntej muab tso rau hauv lub microwave! 】
