Hang tag xav tau sib txawv ntawm kev lag luam. Piv txwv li, cov khaub ncaws hang tags yuav tsum ua raws li GB 18401-2010, "National Basic Safety Technical Specifications for Textile Products," thiab qhia meej txog qib kev nyab xeeb xws li Qib A (Cov Me Nyuam mos thiab Me Nyuam), Qeb B (Direct Skin Contact), lossis Qeb C (Indirect Skin Contact). Khoom noj khoom haus hang tags yuav tsum ua raws li GB 7718-2011, "Txoj Cai Tswjfwm rau Kev Sau Npe ntawm Cov Khoom Noj Ua Ntej," thiab suav nrog cov npe khoom, hnub tas sijhawm, thiab cov ntaub ntawv noj zaub mov.
Hais txog cov khoom siv, daim ntawv dai daim ntawv ua lag luam (suav txog kwv yees li 65%) vim lawv cov nqi qis thiab luam tawm, tab sis lawv muaj huab cua tsis zoo. PVC lossis PET yas hang tags (sau rau 25%) yog cov dej tsis zoo thiab hnav- tiv taus, ua rau lawv tsim nyog rau cov khoom siv sab nraum zoov. High-cov khoom lag luam kawg yuav siv cov ntaub lossis hlau hang tags (sau rau 10%) rau kev xav zoo dua.
