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Koehler K20570 Penetrometer Precision Needle; SS with Brass Shank, NIST Calibration Certificate
科尔帕默中国 描述Penetrometer precision needles; SS with brass shank, NIST certified
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1,2-二氯苯标准溶液,95-50-1,analytical standard,1000ug/ml in methanol
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毒草胺标准溶液,1918-16-7,1000ug/ml in Acetone
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邻苯二甲酸二正辛酯标准溶液,117-84-0,analytical standard,1000ug/ml in methanol
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硅酸根标准溶液,1000ug/ml in 0.05mol/L NaOH
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硝酸盐氮标准溶液,1000ug/ml in Water (20℃)
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苯酚标准溶液,1000ug/ml in 0.02mol/L NaOH
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Cole-Parmer Stainless Steel Crucible with Cover, 25 mL, 1/ea
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1,2,4-三氯苯标准溶液,120-82-1,analytical standard,1000ug/ml in methanol
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mix-64种半有机挥发物混标标准品
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