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UV/VIS 校正标准品 6 -- 波长 reference material for the wavelength according to Ph Eur
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UV/VIS 校正标准品 1 -- 吸光值 for absorbance according to Ph Eur
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UV/VIS 校正标准品 3 -- 迷光 for stray light testing according to Ph Eur
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UV/VIS 校正标准品 2 -- 迷光 for stray light testing according to Ph Eur
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UV/VIS 校正标准品 4 -- 迷光 for stray light testing according to Ph Eur
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UV-VIS 标准品 1a: 重铬酸钾溶液 (600 mg/l) for the absorbance at 430 nm according to Ph Eur
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UV/VIS 校正标准品 5 -- 分辨率 for testing of the resolution power acc. to Ph Eur
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四草酸钾 certified secondary standard reference material for pH measurement
Potassium tetraoxalate dihydrate certified secondary standard reference material for pH measurement
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苯甲酸二级标准品 volumetric standard, secondary reference material for alkalimetry
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草酸钠二级标准品 volumetric standard, secondary reference material for redox titration
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