Disinfection Of Pp-Rotors; Glass Breakage; Lifetime Of Rotors, Round And Rectangular Buckets, Accessories - Hermle Z 446 K User Manual

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MAINTENANCE

3.1.5 Disinfection of PP-Rotors

ATTENTION Polypropylene rotors must not be autoclaved!

Gas Sterilization

Adapters, bottles and rotors may be gas sterilized, with Ethylenoxyd. According to the duration of the

application, allow items to properly air out, after the sterilization and before usage.

ATTENTION: The temperature may rise during the sterilization; rotors, adapters and bottles

should not be fully closed, keep completely unscrewed.

Chemical Sterilization

Bottles, adapters and rotors may be treated, with the usual liquid disinfectants.

ATTENTION: Before applying any other cleaning resp. decontamination method other than

what was recommended by the manufacturer, contact the manufacturer to ensure that it will

not damage the unit or the rotor.

With high g-values, the rate of glass tube breakage increases. Glass splinters have to be removed

immediately from rotor, buckets, adapters and the rotor chamber itself. Fine glass splinters will

scratch and therefore damage the protective surface coating of a rotor. If glass splinters remain in

the rotor chamber, fine metal dust will build up, due to air circulation. This very fine, black metal dust

will severely pollute the rotor chamber, the rotor, the buckets, and the samples.

If necessary, replace the adapters, tubes and accessories, to avoid further damage. Check the rotor

bores regularly, for residue and damage.

ATTENTION: Please check the relevant specifications of the tubes with the manufacturer!

Rotors and rotor lid made of aluminum or stainless steel, have a operating time of max. 7 years

from first use.

Transparent rotor lids and caps, made of PC or PP, as well as rotors, tube racks and adapters of

PP, have a maximum operating time of up to 3 years, from first time use.

Plastic lids and seals of aerosol-tight aluminum rotors and aluminum buckets must be replaced after

ten autoclaving cycles.

Conditions For the Operating Time:

Proper use, damage-free condition, recommended care.

Z446K_V1.22_eng

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