标准比色液是用于颜色对比的试剂。
结果：中英药典标准比色液之间有相似之处，但与美国药典标准比色液差别较大。
Results: The reference solutions between ChP and BP were similar, but between ChP and USP were different.
溶液澄清度与颜色：溶液应澄清无色；如显色，应不得深于黄色1号标准比色液。
Clarity and colour:Clear, colourless liquid; if itappear color, less than Y1#standard compare color liquid.
色盘上的标准颜色玻璃色应取用作为标定标准色的比色液进行校正。
Color wheel standard on the color of glass color be used as a calibration standard color solution for correction.
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