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From palmerwahl.com
Per National Bureau of Standards-NBS Monograph 90 Mercury separations commonly occur as a result of exposure to shock and rough handling during shipment. This condition can generally be corrected by carefully following the procedure below, which was developed by the National Bureau of Standards (now NIST). Please read the instruction completely before attempting the repair. Contact Palmer Instruments (800) 421-2853 if you have questions, or if we can assist you in any way. Many inquiries are received concerning separated mercury columns, particularly after shipment. Since no means of avoiding such occurrences has yet been found, the recourse of stating some directions for joining the mercury is adopted. The process of joining broken columns consists of one or a series of manipulations which may be effective, and these are briefly described here. Products & Services
Optical calibration standards are used to calibrate the optical properties of optical detectors and instruments.
Shipping and freight services transport industrial and commercial items via truck, rail, air or ship.
Purge controllers and indicators are used to regulate and monitor hazardous environments within enclosures.
Drill bits are drill accessories that are used as rotary cutting tools for drilling holes.
Ballasts are power supplies or transformers for fluorescent lamps.
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