Water baths are mainly used in industrial and clinical laboratories, in academic laboratories, in research laboratories, for environmental applications, as well as in food technology laboratories and wastewater treatment units.<\/p>\n
The property of water to retain heat uniformly made the water bath one of the first incubation methods.<\/p>\n
Their applications include sample freezing, bacteriological analyses, reagent heating, coliform determination, uses for microbiological analyses, food processing, and quality control among others.<\/p>\n
These devices can incorporate different components and technical specifications depending on the needs of each application.<\/p>\n
The first basic distinction is between digital or analog water baths. Digital-type baths can ensure greater temperature uniformity for a longer duration and also have programming capabilities due to the presence of a microprocessor. This translates to temperature selection with more precise gradation, the ability to use a timer, as well as the presence of multiple safety systems, such as state-of-the-art thermostats, water level indicators, and various alarms.<\/p>\n
Analog systems offer great ease of use and are suitable for applications where decimal precision is not as important.<\/p>\n
In a second phase, the options offered differ in terms of the presence or absence of a circulator, the cooling function of the bath or not, the stirring function, the material of the tank and the exterior, the presence of multiple chambers, the achievement of extremely high temperatures, and finally the dimensions of the device.<\/p>\n
Indicatively, the temperatures of a common digital water bath without cooling or recirculator can range from +5\u00b0C to +100\u00b0C with uniformity of \u00b10.1\u00b0C, while the capacities can range from 6 to 45 liters. They are usually made of type 304 stainless steel and feature a special lid that prevents heat loss and helps maintain temperature stability and uniformity.<\/p>\n
Devices that have a circulator or operate with oil can achieve temperatures from +5\u00b0C to +250\u00b0C, while refrigerated devices can range from -20\u00b0C or -40\u00b0C to +100\u00b0C.<\/p>","protected":false},"excerpt":{"rendered":"
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