USP标准物质在全球130多个国家得到广泛的认可和信任。USP 法定标准物质是原料药、辅料、杂质、降解产品、食品补充剂、药典试剂和性能校正剂的样本，其特性规定极严密。在进行法定 USP-NF 测试和化验时必须使用USP 标准物质。
USP标准物质也可以用作校正剂，用于溶出、粒子计数、熔点和滴定液标定，也可以用于空白和对照实验。标准物质主要用于色谱和光谱方法。除基于USP-NF的标准物质之外，USP 还向分析、临床、制药和研究实验室提供《食品化学法典》(Food Chemicals Codex)中规定的标准物质以及纯品（优质化学样品）。
"1,601,601 " "Residual Solvent Class 2 - Hexane
"1,601,623 " "Residual Solvent Class 2 - Methanol
"1,601,645 " "Residual Solvent Class 2 - 2-Methoxyethanol
"1,601,667 " "Residual Solvent Class 2 - Methylbutylketone
"1,601,689 " "Residual Solvent Class 2 - Methylcyclohexane
"1,601,441 " "Residual Solvent Class 2 - Methylene Chloride
"1,601,703 " "Residual Solvent Class 2 - N-Methylpyrrolidone
"1,601,725 " "Residual Solvent Class 2 - Nitromethane
"1,601,747 " "Residual Solvent Class 2 - Pyridine
"1,601,769 " "Residual Solvent Class 2 - Sulfolane
"1,601,770 " "Residual Solvent Class 2 - Tetrahydrofuran
"1,601,780 " "Residual Solvent Class 2 - Tetralin
"1,601,805 " "Residual Solvent Class 2 - Toluene
"1,601,827 " "Residual Solvent Class 2 - Trichloroethylene
"1,601,849 " "Residual Solvent Class 2 - Xylenes
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