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现行 ISO 7760:2001
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Photography — Processing waste — Determination of hydroquinone 摄影与摄影;处理废物——氢醌的测定
发布日期: 2001-12-20
本国际标准规定了分光光度法测定水中对苯二酚的方法 摄影加工废物。 该方法适用于浓度范围为200μg/l至200μg/l的对苯二酚样品 4000μg/l;氨基酚和苯二胺也应通过该方法测定。然而,磺化 对苯二酚或苯醌进一步氧化的产物将不予测定。
This International Standard specifies a spectrophotometric method for the determination of hydroquinone in photographic processing waste. This method can be applied to samples containing hydroquinone in the concentration range of 200 μg/l to 4 000 μg/l; aminophenols and phenylenediamines should also be determined by this method. However, sulfonated hydroquinones or products from the further oxidation of benzoquinone will not be determined.
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归口单位: ISO/TC 42
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