Autoclave Categories
Autoclaves are items of equipment that are used in veterinary
practices to sterilize all of the instruments and all of the materials used in
professional procedures. They must meet the biosafety standards established by
the regulations in force, starting with the guidelines in Italian Legislative
Decree number 81 of 2008 (Consolidation Act for Occupational Health and
Safety). They define autoclaves as “pieces of equipment that allow items to be
subjected to high-pressure steam” and state that they must meet the
requirements of the UNI EN 285 standard, which also provides details of the
tests that must be carried out to ensure that machines are operating properly.
When picking an autoclave, it is possible to chose between
three different types: Class N, Class S and Class B.
Class N autoclaves
Class N autoclaves are compact and they are for sterilizing
simple materials. The letter “N” stands for “naked solid products”. Therefore,
these autoclaves cannot be used to sterilize textiles, porous loads, hollow
items or even products in pouches, as the cycles do not have the right
characteristics to pass specific physical tests. Another potential weakness of
these machines is that the required steam penetration cannot be guaranteed.
Among other things, it is dependent on the creation of a vacuum at the start,
which is not obligatory in these machines.
Class B autoclaves
Class B autoclaves are compact but their performance levels
are comparable to those of the largest machines in hospitals. The letter “B”
stands for “big small sterilizers”, because they are small machines that offer
big performance. Any type of load can be sterilized in a Class B autoclave.
This includes porous materials, products in pouches, textiles and hollow items
such as wands, turbines and tips. The applicable standard for equipment of this
kind is EN 13060, which is specifically dedicated to small steam sterilizers
(i.e. machines with a sterilization chamber that is smaller than the
sterilization unit). The standard distinguishes between sterilization cycles on
the basis of the materials being sterilized (solid loads, type A solid loads
with hollow sections and type B solid loads with hollow sections).
Class S autoclaves
Finally, Type S covers all of the other types of autoclaves.
Essentially, it is an intermediate class between Type N and Type B autoclaves
and the characteristics are not defined by any standards. It simply depends how
they are made. Only the manufacturers can provide details of their performance
capabilities, which are established by specific tests.
Therefore, the most suitable machine for a veterinary
practice is a Class B autoclave, because it offers greater flexibility and is
suitable for a wide range of settings. Although they are small, Class B
autoclaves can offer outstanding performance, unbeatable efficiency and the
highest possible safety standards. Their noteworthy strengths include easy
handling thanks to their ergonomic designs and energy savings due to their low
power consumption. User-friendly Class B autoclaves are the epitome of hygiene
and safety, as well as practicality and comfort.
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