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Koch's or Arnold's steam sterilizer: used for steam sterilization A pressure cooker: used as a portable autoclave Biological and chemical indicators: Used to ascertain if a certain process has been completed, e.g. spores used in an autoclave are killed if autoclaving is properly done Filters: •Candle filter:
Microwave-specific effects tend not to be controversial and invoke "conventional" explanations (i.e. kinetic effects) for the observed effects. [19] Non-thermal microwave effects have been proposed in order to explain unusual observations in microwave chemistry. As the name suggests, the effects are supposed not to require the transfer of ...
Cutaway illustration of a cylindrical-chamber autoclave. An autoclave is a machine used to carry out industrial and scientific processes requiring elevated temperature and pressure in relation to ambient pressure and/or temperature.
Instruments and techniques used for dry heat sterilization include hot air ovens, incinerators, flaming, radiation, and glass bead sterilizers. Effect on microorganisms [ edit ]
This method is a faster process than dry heat sterilization. Steam sterilization is performed using an autoclave, sometimes called a converter or steam sterilizer. The object or liquid is placed in the autoclave chamber, which is then sealed and heated using pressurized steam to a temperature set point for a defined period of time.
Within the sterilizer, water flows as close as possible to the ultraviolet light source. Water pre-filtration is critical as water turbidity lowers UV-C penetration. Many of the better UV sterilizers have long dwell times and limit the space between the UV-C source and the inside wall of the UV sterilizer device. [117] [independent source needed]
An inter-war bottle of Milton's Fluid, Hunterian Museum, Glasgow. Milton sterilizing fluid is produced by Procter & Gamble for sterilization uses. It contains 1% sodium hypochlorite (NaClO) and 16.5% sodium chloride (NaCl; common salt).
In 1952, in Sweden, Tetra Pak launched tetrahedral paperboard cartons. They made a commercial breakthrough in the 1960s, after technological advances, combining carton assembling and aseptic packaging technologies, followed by international expansion.