美国Cole-Parmer电导标定液,进口电导率标准液,480或960ml/min,有1-10000μs,23-80000μs,46.7-30100μs多种标准可选。 NIST-traceable reference materials include a calibration report from an ISO Guide 34 and ISO 17025 accredited laboratory for the highest accuracy available—up to ±0.25%! Each bottle includes a NIST-traceable calibration report supplied by the manufacturer and information from batch testing. Also includes step-by step calibration instructions and temperature compensation chart. One 16-oz glass bottle.
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