Nominal txoj kab uas hla ntawm lub raj tooj liab (mm): 8, 10, 15, 20, 25, 32, 40, 50, 65, 80, 100, 125, 150, hauv 1/4 3/8 1/ 2 5/8 3/4 1 1 1/4 1 1/2 2 2 1/2 3 3 1/2 4 5 6
Qhov nruab nrab sab nraud (mm): 9.52, 12.7, 15.88, 19 89, 1.24, ib. 1.24, 1.24, 1.65, 1.65, 1.65, 1.65, 1.83, 2.11, 2.41, 2.77, 3.05, 3.40, 4.06, 4.78
Phab ntsa thickness (mm) L-qib 0.76, 0.89, 1.02, 1.07, 1.14, 1.27, 1.4{{36 } }, 1.52, 1.78, 2. 2.77, 3.10 Nws
Piv nrog cov kav dej yas zoo tib yam, cov kav dej tooj liab muaj cov tshuaj ntxiv xws li plasticizers hauv cov ntaub ntawv tseem ceeb ntawm cov kav dej yas, uas yooj yim rau kev khiav tawm los yog hardening thiab embrittlement ntawm plastics nrog kev hloov hauv lub sij hawm thiab kub. Cov kav dej tooj liab tsis muaj ntau yam tshuaj lom neeg xws li kev hloov kho, cov khoom siv ntxiv, thiab cov khoom siv ntxiv ntawm cov kav dej yas, thiab lawv cov khoom ruaj khov heev. Tsis tas li ntawd, E. coli nyob rau hauv cov dej tsis tuaj yeem txuas ntxiv mus txuas ntxiv hauv cov kav dej tooj liab, thiab ntau dua 99% ntawm cov kab mob hauv dej raug tua tag nrho tom qab nkag mus rau hauv cov kav dej tooj liab rau 5 teev. Ntxiv mus, tus copper yeeb nkab muaj ib tus qauv tuab heev thiab yog impermeable. Txawm hais tias nws yog roj, kab mob, kab mob, cov pa oxygen, ultraviolet rays thiab lwm yam teeb meem, lawv tsis tuaj yeem hla nws thiab ua rau cov dej tsis zoo. Tsis tas li ntawd, cov kav dej tooj liab tsis muaj cov tshuaj ntxiv thiab yuav tsis hlawv kom tso cov pa phem uas ua rau neeg tuag taus. Tsis tas li ntawd, kev rov ua dua ntawm tooj liab yog qhov muaj txiaj ntsig zoo rau kev tiv thaiv ib puag ncig thiab yog cov khoom siv ntsuab rau kev tsim kho kom ruaj khov.
