DWK Life Sciences

A Kimble hydrometer consists of a long glass tube containing ballast at the base of the float bulb and a graduated scale in the stem. Unlike the older style of hydrometer, the ballast is now made from steel pellets, and it is free of lead and mercury. A serial number is printed on the scale, a certificate of traceability is included, and the hydrometer is calibrated to ASTM specifications to ensure accuracy. … ................
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