网上帮你收集了下:
样品浓度mg/L CODcr GSBZ50001-88
200136 54.5±3.6
200150 51.0 ± 4.2
200152 64.3 ± 4.
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GSBZ50001-88化学需氧量COD标准液浓度范围:70~200mg/L包装规格:20ml适用范围:COD检测仪
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