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Chlorine HR T / M103
EN Method Reference Book 1.0
31
EN
Chemical Method
DPD
Appendix
Interferences
Persistant Interferences
• All oxidising agents in the samples react like chlorine, which leads to higher results.
Removeable Interferences
• Interference from Copper and Iron (III) are eliminated by the addition of EDTA.
• The use of reagent tablets in samples with high Calcium content* and/or
high conductivity* can lead to turbidity of the sample and therefore incorrect
measurements. In this case, the alternative reagent tablet DPD No. 1 High Calcium
and reagent tablet DPD No. 3 High Calcium should be used.
*it is not possible to give exact values, because the development of turbidity depends
on the composition and nature of the sample.
Conformity
EN ISO 7393-2
a)
determination of free, combined and total
Содержание MD 100
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Страница 109: ...Cloro T M100 ES Method Reference Book 1 0 110 ES a Posible determinación de libre combinado total ...
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Страница 155: ...Chlore T M100 FR Method Reference Book 1 0 156 FR a Détermination du libre combiné et total ...
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Страница 352: ...T 氰 M160 ZH Method Reference Book 1 0 353 ZH 化学方法 三聚氰胺 干扰说明 持续干扰 1 未溶解的颗粒可能会导致结果过高 因此 完全溶解片剂很重要 ...
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