Lati le ṣe ilọsiwaju iṣẹ rẹ ni awọn iwọn otutu ti o ga julọ, irin-ajo irin-ajo ASTM ASTM ACEL5 Awọn ifaagun ti o jẹ eyiti iṣẹ iṣe, ṣiṣe abojuto, aifọkanbalẹ, tabi isunlẹ. Lẹhin ti o ti mọ awọn iṣẹ, ASTM A105 Cabon pen irin ni lati firanṣẹ si idanwo ẹdọfu, idanwo lile ati idanwo Hydrotetatic, pẹlu igbehin hydrostatic, pẹlu igbehin hydrostatic, pẹlu igbehin hydrostatic, pẹlu igbehin hydrostatic.