American Society for Testing and Materials, ASTM. Sa taʻua muamua o le International Association for Testing Materials (IATM). Le American Society for Materials and Testing (ASTM) o le taimi nei o se tasi o faʻalapotopotoga faʻapitoa mo le atinaʻeina o tulaga maualuga i le lalolagi ma o se faʻalapotopotoga tutoatasi e leai ni tupe mama. O le ASTM e toetoe lava 34,000 sui auai, e tusa ma le 4,000 o latou mai le faitau selau o atunuu i fafo atu o le Iunaite Setete. ASTM ua atiaʻe le sili atu i le 10,000 tulaga faʻataʻatia.

E faamalo atu i leDonghuang DHDZ fa'amaui le mauaina o leASTM Tusi Faamaonia

Astm, donghuang mana matagi, faʻapitoa i le gaosiga ma le faʻatau atu o faʻamatalaga eseese oflanges, fa'ailoga, faʻamatalaga maeʻa, e mafai ona faʻapipiʻiina e tusa ai ma manaoga o tagata faʻatau, faʻafeiloaʻi faʻatalanoaga fou ma tagata tuai, tulaga tauleleia...

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