ASTM sawv cev rau American Society for Testing and Materials. Nws yog lub koom haum thoob ntiaj teb uas tsim thiab tshaj tawm cov qauv txheej txheem rau cov khoom siv, cov khoom, cov tshuab, thiab cov kev pabcuam. ASTM muaj ntau dua 12,000 ASTM cov qauv uas suav nrog 134 pawg kws tshaj lij.
Cov qauv ASTM pab cov tuam txhab, engineers, architects, thiab cov kws tshawb fawb kom ntseeg tau tias lawv cov khoom thiab cov khoom ua tau raws li cov qauv zoo thiab kev nyab xeeb. Cov qauv no tseem tuaj yeem pab cov tuam txhab txhim kho kev ua haujlwm, txo cov nqi, thiab ua kom cov neeg siv khoom txaus siab.
Cov qauv ASTM suav nrog ntau yam khoom xws li cov khoom siv, cov khoom siv kho mob, cov khoom siv, cov khoom siv roj av, thiab lwm yam. Cov txheej txheem ASTM tus qauv yog kev yeem thiab qhib rau txhua tus neeg uas xav koom nrog.
Hauv kev xaus, ASTM tus qauv txheej txheem tau pab ua kom zoo, kev nyab xeeb, thiab ua haujlwm tau zoo rau ntau yam khoom thiab cov khoom siv. Lub koom haum kev cog lus rau kev tsim thiab tshaj tawm cov qauv kev ua haujlwm tau ua rau muaj kev vam meej ntawm ntau qhov kev lag luam.
ASTM A500 STRUCTURAL TUBING Lub cev muaj zog
