A daily sterilization log records every cycle, the indicators used, and the result, with one biological indicator on each day the sterilizer is used. In Ontario the RCDSO expects daily biological monitoring, not a weekly cadence. The weekly baseline is the CDC / AAMI ST79 standard in most US states, so a log built around a weekly rhythm will not match the Ontario expectation.
What belongs in a daily sterilization log?
A complete log ties each cycle to a date, a sterilizer identifier, the cycle type, and the indicators used. Record the start time, the temperature and pressure where the unit displays them, and the result of the external and internal chemical indicators. Then record the biological indicator result and the incubator used to read it. The log should name the person who ran the cycle, so the record can be traced back to a trained operator.
How often does Ontario require a biological indicator?
In Ontario the RCDSO expects a biological indicator on every day the sterilizer is used. That is a daily record, and it is the single field that most often separates an audit-ready log from an incomplete one. A clinic running a single unit five days a week will therefore log roughly 245 biological indicator results over a working year.
Two clinics with the same sterilizer can still have very different log quality, because the difference is the daily habit rather than the equipment.
What does an auditor look for in the record?
An auditor follows the thread from an instrument back to a cycle and from a cycle back to a monitoring result. That means the log needs enough fields to connect the two, plus a clear retest record when a load fails. Gaps, overwritten entries, and untraceable loads are the most common findings.
| Log field | What to record | Why it matters |
|---|---|---|
| Date and time | Start of each cycle | Links the load to a working day |
| Sterilizer ID | Unit name or number | Separates units in multi-unit clinics |
| Cycle type | Wrapped, unwrapped, or hollow | Confirms the load matches the cycle |
| External indicator | Tape or pouch result | First process check |
| Internal indicator | Class 4 or Class 5 result | Internal process check |
| Biological indicator | Daily result and incubator | Ontario daily monitoring record |
| Operator | Name or initials | Traceability to trained staff |
| Retest | Failure, service, and retest | Closes the loop on a failed cycle |
How do you log a failed cycle and the retest?
Record the failure on the same page as the original cycle, then record the corrective action. Note the load that failed, the loads processed since the last passing test, whether any items were recalled, the service performed, and the retest result. Keep the failed entry instead of replacing it, because the sequence is the evidence that the clinic detected and corrected the fault.
Batch traceability and patient traceability are the two ways clinics connect this record to their patients. The log should support whichever model the practice uses, and the field list above is written so it can carry either one without a redesign.
Retention matters as much as the format. Keep completed log pages for the period your college and provincial rules require, and keep them where they can be produced during an inspection rather than in a drawer only one person can find. A log that exists but cannot be retrieved quickly still reads as a gap to an auditor.
Where to Buy Sterilization Monitoring Supplies in Canada
CliniEco Medical supplies these from Ontario with published CAD pricing (MDEL #35334) — no quote required, and each pack ships with the lot number printed on it so your monitoring record stays traceable.
| Format | Pack size | Price (CAD) | |
|---|---|---|---|
| 24-hour self-contained BI | 25-pack | $84.99 | Order |
| 24-hour self-contained BI | 100-pack | $299.00 | Order |
Round Out Your Sterilization Setup
A biological indicator is one link in the chain — these are the pieces it works with:
- Sterilization pouches — Class 4 dual-indicator, 200-pack — the packaging the indicator rides inside
- Autoclave indicator tape — 3-roll set — the external chemical indicator on every pack
- Class 5 chemical integrators — 100-pack — the in-pack check that pairs with your biological indicator
- Sterilization roll — 50 m pre-cut sheets for larger instruments
- Constant-heat pouch sealer — 200 °C, 12 mm seal — for consistent pouch closures
Which format does your sterilizer actually need?
Match the readout time to how fast you need the result: a 24-hour self-contained indicator works in any gravity or pre-vacuum cycle with a standard incubator, while a 3-hour fluorescence tube needs the matching reader. Running one cycle type per day, the 25-pack covers a month; busier clinics move to the 100-pack and cut the per-test cost.
How much do spore tests cost in Canada?
Published pricing runs $3.40 per test on the 25-pack down to $2.99 on the 100-pack — no distributor quote, no account needed.
Not sure which format your sterilizer needs? Generate a free sterilization log sheet first — it maps your cycles and tells you the pack size that fits. Questions about your setup? Ask a Compliance Specialist.
Related Reading
- Sterilization compliance hub
- Audit-ready autoclave log with 14 fields
- Batch vs patient traceability in the sterilization log
- 24-hour rapid readout biological indicators, 50-pack
Frequently Asked Questions
How many fields should a sterilization log have?
A practical daily log carries around fourteen fields, covering the date, sterilizer, cycle type, chemical indicators, the biological indicator result, the operator, and the retest record. The exact number matters less than keeping every audit-relevant field on one page.
Does Ontario require a weekly or a daily spore test?
Ontario expects a daily record: the RCDSO expects a biological indicator on every day the sterilizer is used. The weekly cadence is the CDC / AAMI ST79 baseline in most US states and should not be used as the Ontario standard.
What should the log show after a failed biological indicator?
It should show the failed result, the date it was read, the loads affected since the last passing test, any recall, the service performed, and the passing retest. Keeping the failed entry in sequence is part of the record.
Can a sterilization log be kept electronically?
Yes, as long as it is complete, dated, and attributable to an operator, and as long as it can be produced on request. The audit requirements follow the record, not the medium.
Download the printable sterilization log, then run the sterilization self-check to find the gaps before an inspector does. Start daily monitoring with the BI 5-pack trial (CA $12.99, shipping included).
Need your log reviewed against the daily expectation? Ask a sterilization compliance specialist, or set up wholesale ordering for a multi-chair practice. Reselling? become a distributor.
Last updated: October 2026. CliniEco Medical is a licensed medical device establishment (MDEL #35334).
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