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总硬度测试盒 Method: titrimetric with titration pipette Aquamerck® 面议0询价
总硬度测试盒补充包 用于108039 Aquamerck® 面议0询价
甲醛测试盒 Method: colorimetric with colour card and sliding comparator 0.1 - 0.25 - 0.4 - 0.6 - 0.8 - 1. 面议0询价
酸碱值测试盒 Method: colorimetric with colour card and sliding comparator pH 4.5 - 5.0 - 5.5 - 6.0 - 6.5 - 面议0询价
亚硝酸盐测试盒 Method: colorimetric with colour card and sliding comparator 0.025 - 0.050 - 0.075 - 0.10 - 面议0询价
铵测试盒 Method: colorimetric, indophenol blue, with colour card and sliding comparator 0.2 - 0.4 - 0.6 面议0询价
铁测试盒补充包 用于111136 Aquamerck® 面议0询价
联氨比色管 用于108017 0.1 - 0.25 - 0.5 - 1.0 mg/l N₂H₄ Aquamerck® 面议0询价
联氨测试盒 Method: colorimetric with colour-matching vessel 0.10 - 0.25 - 0.5 - 1.0 mg/l N₂H₄ Aquamerck® 面议0询价
消解试剂包 for the digestion of nitrogen (total) Spectroquant® 面议0询价
取量查核试剂 Check solutions (4x6 cells) and reference solutions (4 cells ) for checking the volume of pip 面议0询价
品管查核 标准品 for checking the quality of photometric methods for CSB, nitrate and phosphorus Spectroquan 面议0询价
品管查核 标准品 for checking the quality of photometric methods for chloride and CSB Spectroquant® 面议0询价
品管查核 标准品 for checking the quality of photometric methods for ammonium, CSB and nitrogen Spectroquant 面议0询价
PhotoCheck 光度计检查溶液(445/446 nm、520/525 nm和690 nm) Spectroquant® 面议0询价
品管查核 标准品 for checking the quality of photometric methods for ammonium, CSB and nitrogen Spectroquant 面议0询价
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