NIL QC-20172002 维氏硬度HV0.2 质控样品
NIST SRM 87a 硅铝合金Silicon-Aluminum Alloy
NIST SRM 84l 邻苯二甲酸氢钾Potassium Hydrogen Phthalate
NIST SRM 82b 镍铬铸铁Nickel-Chromium Cast Iron
NIST SRM 80a 钠钙玻璃Soda-Lime Glass (Beads)
NIST SRM 78a 耐火材料Burnt Refractory (Al203-70%)
NIST SRM 77a 耐火材料Burnt Refractory (Al203-60%)
NIST SRM 76a 耐火材料Burnt Refractory (Al203-40%)
NIST SRM 72g 低合金钢Low Alloy Steel (AISI 4130)
NIST SRM 70b 钾长石Potassium Feldspar
NIST SRM 69b 铝土矿Bauxite (Arkansas)