NIST SRM 291 铬钼钢Cr-Mo Steel (ASTM A-213)
NIST SRM 277 钨精矿Tungsten Concentrate
NIST SRM 211d 甲苯浓度Toluene Liquid Densit- Extended Range
NIST SRM 200b 磷酸二氢钾Potassium Dihydrogen Phosphate (Fertilizer Standard)
NIST SRM 196 钼铁Ferrochromium, (Low-Carbon)
NIST SRM 195 硅铁Ferrosilicon (75% Si-HP Grade)
NIST SRM 194a 磷酸二氢铵Ammonium Dihydrogen Phosphate
NIST SRM 193 硝酸钾Potassium Nitrate
NIST SRM 191d pH标准pH Standard Sodium Bicarbonate (191d-I) Sodium Carbonate (191d-II)
NIST SRM 189c pH标准Potassium Tetroxalate Dihydrate pH Standard
NIST SRM 188 pH标准Potassium Hydrogen Tartrate (pH Standard)
NIST SRM 186g pH标准pH Standards, (set of 186-I-g + 186-II-g)
NIST SRM 185i pH标准Potassium Hydrogen Phthalate, pH Standard
NIST SRM 183 锂矿石Lithium Ore (Lepidolite)
NIST SRM 182 锂矿石Lithium Ore (Petalite)
NIST SRM 181 锂矿石Lithium Ore (Spodumene)
NIST SRM 180 氟石Fluorspar, High Grade