Laboratory Equipment for Microbiological Examinations
Balances are mainly used for weighing the test portion of the sample to be examined and the components of the culture media and reagents. In addition, they may be used for carrying out measurements of dilution fluid volumes by mass.
This equipment is used to prepare the initial suspension from the test sample.
A pH meter is used to measure the potential difference, at a determined temperature, between a measuring electrode and a reference one, both electrodes being introduced into the product.
An autoclave enables a saturated steam temperature to be attained in the chamber.
An incubator consists of an insulated chamber which enables the temperature to be kept stable and uniformly distributed to within the maximum permissible temperature tolerance specified in the test method.
Thermostatically controlled bath
A thermostatically controlled bath, filled with a liquid (water, ethylene glycol, etc.), with or without a fitted lid or other device to limit evaporation, is required to maintain a specified temperature.
Boiling-water baths consist of a heating element surrounded by water in a vessel with a close-fitting lid.
A sterilizing oven is a chamber that is capable of maintaining a temperature of 160 °C to 180 °C for the destruction of microorganisms by dry heat.
This instrument facilitates the homogeneous mixing of liquid media (e.g. decimal dilutions and samples of liquid for testing) or suspensions of bacterial cells in a liquid.
Centrifuges are mechanical or electronically operated devices that use centrifugal force to separate suspended particles, including microorganisms, from fluids.
Hotplates is thermostatically controlled heating devices.
Heating mantles is thermostatically controlled heating devices.