| Frequently Asked Questions
Where can I source a copy of the Sterilisation
Standards?
Relevant Standards for those involved in decontamination and sterilization
in both hospitals and office-based practice are as follows:
Hospitals:
Australian/New Zealand Standard 4187 2003 (AS/NZS 4187:2003)
Cleaning, disinfecting and sterilizing reusable medical and surgical
instruments and equipment, and maintenance of associated environments
in health care facilities.
Office-based facilities:
Australian/New Zealand Standard 4815 2006 (AS/NZS 4815:2006)
Office-based health care facilities not involved in complex patient
procedures and processes-Cleaning, disinfecting and sterilizing
reusable medical and surgical instruments and equipment, and maintenance
of the associated environment.
Copies of current Standards are available from:
- Standards New Zealand, Level 10, 155 The Terrace, Wellington
6001, or
- Standards New Zealand, Private Bag 2439, Wellington 6020
Telephone: (04) 498 5990, Facsimile: (04) 498 5994,
Email: snz@standards.co.nz
Website: www.standards.co.nz
How should instruments be presented for
sterilization?
AS/NZS 4187:2003 states in 3.4 Specific Packaging and Wrapping
Requirements, Clause 3.4.1 Instruments (Page 28) the following:
Instruments with hinges or ratchets shall remain open and unlocked.
Consultation shall take place with end users regarding the presentation
of instruments for sterilization. For ease of handling after sterilization,
instruments in the open and unlocked position may be placed on specially
designed instrument holders, in required order, as prescribed by
the end user.
Multiple-part instruments for sterilization shall be disassembled
or sufficiently loosened prior to packaging to permit the sterilizing
agent to come into contact with all parts of the instrument. Instrument
sets should be packaged in a manner that prevents damage to delicate
items.
Trays used for packaging instrument sets should be perforated to
allow for penetration of the sterilizing agent and efficient drying.
Note: Recent audits in both Australia and New Zealand have revealed
that instruments supposedly closed to 1st ratchet position only
for sterilization have been closed to 2nd, 3rd and 4th ratchet position.
How should hollowware be packaged?
AS/NZS 4187:2003 Section 3 PACKAGING AND WRAPPING OF ITEMS PRIOR
TO STERILIZATION Clause 3.4.2 (Page 29) states the following:
Hollowware sets shall be packaged so that all openings face the
same direction and so that the contents cannot move inside the pack.
Non-porous spacers shall be used to separate hollowware when
nested.
Clause 3.4.3.3 Flexible packaging materials also states:
Hazards exist in the use of flexible packaging materials such as
laminated pouches. Hollowware items such as gallipots may entrap
condensate in the gusset or against the plastic surface of the pack
when laid flat, thus defeating the sterilizing process. This form
of packaging is best positioned on its side to allow egress of air
or condensate and ingress of the sterilizing agent.
Hollowware should be placed with the opening against the paper
and not the plastic.
Note: Non porous spacers are not linen guards, single use tray
liners or non woven wrapping material, which are all porous items.
It should be noted that some autoclavable plastic ware is designed
with spacers built in, therefore no additional spacer is required.
Do we really need to clean instruments
on loan prior to use?
AS/NZS 4817:2003 Clause 12.4.3 Instruments on loan states the following:
On receipt into the health care facility, instruments on loan (loan
instruments), including loan sets, instruments from other health
care facilities and individual clinicians, shall undergo a complete
routine cleaning and processing prior to sterilization by the wrapped
method. Perceived lack of time shall not permit the cleaning process
to be bypassed. If soil and debris are found to be present on receipt
of the instruments on loan, the condition of the instruments shall
be reported to the supplier. Following use, all instruments on loan
shall be subjected to the full cleaning process and sterilized before
being returned to their source.
Note: Some semi-critical and non-critical loan items, e.g. gastroscopes,
may require disinfection only. However, advice should be sought
from the instrument supplier as to the process to be used prior
to return.
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