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Test # that/what


1.
Everything ________ happened was new to me.

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  • Precautions while using Centrifuge

    High speed centrifuges

    High speed centrifuges pose additional hazards due to the higher stress and force applied to their rotors and tubes. In addition to the safety guidelines outlined above, follow these guidelines for high speed centrifuges: 1 Filter the air exhausted from the vacuum lines. 2 Keep a record of rotor usage, in order to avoid the hazard of metal fatigue. 3 Frequently inspect, clean, and dry rotors to prevent corrosion or other damage. 4 Follow the manufacturer s operating instructions exactly.


    Chourishi Systems