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铬酸离子 IC 标准液 1,000 mg/l CrO42- traceable to SRM of NIST K₂CrO₄ in H₂O 1000 mg/l CrO₄²⁻ CertiPUR®
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SULFONYL CHLORIDE, POLYMER-BOUND, 1% CRO
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Z832300-100g 锌铬黄,ZnO≥61%, CrO3≥19%
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Z832300-100g 锌铬黄,ZnO≥61%, CrO3≥19%
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Z832300-250g 锌铬黄,ZnO≥61%, CrO3≥19%
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Z832300-1kg 锌铬黄,ZnO≥61%, CrO3≥19%
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铬酸盐测试条 Method: colorimetric with test strips and reagent 3 - 10 - 30 - 100 mg/l CrO₄ Merckoquant®
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铬酸盐测试盒 方法: 光度法 0.05 - 2.00 mg/l Cr 0.11 - 4.46 mg/l CrO4 Spectroquant®
Chromate Cell Test Method: photometric 0.05 - 2.00 mg/l Cr 0.11 - 4.46 mg/l CrO4 Spectroquant
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铬酸盐测试盒(六价铬) 方法: 光度法0.010 - 3.00 mg/l Cr 0.02 - 6.69 mg/l CrO4 Spectroquant®
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- 0.6 - 1.0 - 1.8 - 3.0 - 6.0 - 10 mg/l Cr 0.22 - 0.45 - 0.8 - 1.3 - 2.2 - 4.0 - 6.7 - 13 - 22 mg/l CrO₄²⁻ Microquant®
- 3,0 - 6,0 - 10 mg/l Cr 0.22 - 0.45 - 0.8 - 1.3 - 2.2 - 4.0 - 6.7 - 13 - 22 mg/l CrO
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