Performance characteristics of the power supply (1) The external characteristics of the power supply are flat characteristics with a certain voltage drop. The use of bridge rectification improves the utilization of the transformer and reduces the requirement for back pressure resistance of the rectifier. (2) Same as the use of linear integrated circuits and CMOS digital integrated circuits as proportional amplification and logic control devices, the accuracy of the ammeter is high, and the workpiece is reliable.
Inoculating loop and needle are instruments used for inoculation, serial dilution, aseptic sampling, transfer and microbial sample coating. Options include color-coded disposable consumables made of materials such as polymers, aluminum, and other metals. The disposable inoculating loops and the inoculation needles are made of non-toxic (USP VI grade) polystyrene material, which can provide users with a smooth surface of the inoculation loop for use in vaccines and diagnostic kits, pharmaceuticals and biotechnology.
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