Mẫu chuẩn thành phần vật liệu ALPHA
• Carbon/Sulfur Pin Standards
• one Gram Carbon/Sulfur Ring Standards
• Carbon/Sulfur/Nitrogen Chip Standards
• Cast Iron Thru Wrougth Iron
• Hidrogen in steel
• Steel Balls For H/ON
• Titanium Pins For Hydrogen Oxigen Nitrogen,
• Oxygen and Sulfur In Copper Pins
• Nitrogen/Oxygen in Steel Pins, Zirconium Pins For Nitrogen and Oxygen
• Coal and Coke Standard
• Hydrocarbon Standards