Two European standards are quoted in almost every quotation for a steam sterilizer, and they are quoted for machines that sit at opposite ends of a laboratory bench. EN 13060 and EN 285 do not compete. Each one opens with a scope paragraph naming the equipment it covers, and those two scope paragraphs are the whole of the boundary between them. A facility trying to work out which tests, cycles and records a given sterilizer owes starts by asking which scope definition its chamber falls under — and it does not finish there, because the document that tells a Canadian clinic what to do on a working morning is a different document again.
This article reads the two scopes side by side, sets out the machine boundary they create, lists the tests each standard actually contains, and then separates three questions that are routinely collapsed into one: what the machine must be able to do, what the manufacturer must demonstrate, and what the facility must record on the day. Sources are the published scope and contents of EN 13060:2025 and EN 285:2015+A1:2021, the Canadian standards and regulatory material that governs the facility side, and the published Ontario requirements for sterilization monitoring.
Quick facts
- EN 13060 is the small-sterilizer standard. Its scope applies to small steam sterilizers used primarily for the sterilization of medical devices with a chamber volume of less than 60 l and unable to accommodate a sterilization module measuring 300 mm × 300 mm × 600 mm.
- EN 285 is the large-sterilizer standard. Its scope applies to steam sterilizers designed to accommodate at least one sterilization module, or having a chamber volume of at least 60 l.
- EN 13060:2025 supersedes EN 13060:2014+A1:2018. It was approved by CEN on 23 June 2025 and published on 26 August 2025.
- EN 285:2015+A1:2021 combines EN 285:2015 with Amendment 1, which CEN approved on 23 May 2021, and adds an annex tying the standard to EU Regulation 2017/745.
- Both are European (CEN) standards. Neither is a Canadian legal requirement. They are the reference against which a manufacturer tests a machine's design and cycles.
- Validation and routine control of moist heat sterilization is the subject of ISO 17665. EN 13060 states in its own scope that it does not specify requirements for validation or routine control.
Which standard applies to which machine?
The boundary sits inside the two scope paragraphs and it has two limbs. A sterilizer is a large sterilizer, and so falls under EN 285, if it either accommodates at least one sterilization module or has a chamber volume of at least 60 litres. It is a small sterilizer, and so falls under EN 13060, if the chamber is under 60 litres and cannot accommodate the module. The "or" carries weight: a chamber just under 60 litres that can still take a 300 mm × 300 mm × 600 mm module satisfies the module limb and moves to the large-sterilizer side of the line.
Table 1 applies that boundary to the units a dental, GP or laboratory setting is most likely to be buying.
| The machine in front of you | Chamber test | Standard that applies | Why it lands there |
|---|---|---|---|
| Compact benchtop unit processing wrapped instruments, pouches and handpieces | Chamber under 60 l, and a 300 × 300 × 600 mm module will not fit | EN 13060 (small steam sterilizers) | Both limbs of the EN 13060 scope are met |
| Freestanding unit with a chamber of 60 l or more | Chamber at least 60 l | EN 285 (large sterilizers) | The volume limb of the EN 285 scope is met |
| Unit with a chamber just under 60 l that will accept one sterilization module | Module limb satisfied even though the chamber is under 60 l | EN 285 (large sterilizers) | The EN 285 scope is joined by "or" between the two limbs |
| Unit with a chamber over 60 l | Chamber at least 60 l | EN 285 (large sterilizers) | The volume limb is met and the size question is closed |
| Unit whose data plate names a cycle "type B", "type N" or "type S" | Normally the small-sterilizer family | EN 13060 (small steam sterilizers) | Those cycle type labels come from the small-sterilizer standard family |
A buyer who can read only one thing should read the chamber volume and the module footprint together, because the decision turns on the pair and not on the volume alone.
What each standard actually covers
The two documents are built for different owners. EN 13060 addresses itself to automatically controlled small sterilizers, whether they raise steam with electrical heaters or draw steam from a system external to the sterilizer, and it specifies performance requirements and test methods for those sterilizers and their cycles. EN 285 addresses itself to large sterilizers processing medical devices and accessories contained in one or more sterilization modules, and it selects its test loads to represent the majority of loads — wrapped goods of metal, rubber and porous materials — while noting that specific loads such as heavy metal objects or long narrow lumens require other test loads.
Neither document sets out what a health care facility must do each day, and both are explicit about the limits of their own scope. EN 13060 says it does not specify requirements for the validation and routine control of sterilization by moist heat and points the reader to EN ISO 17665, and it excludes sterilizers used for liquids or pharmaceutical products. EN 285 excludes equipment intended to use, contain or be exposed to flammable substances, equipment intended to process biological waste or human tissues, and quality management systems.
Table 2 puts the two scope definitions and their exclusions next to each other.
| Parameter | EN 13060:2025 | EN 285:2015+A1:2021 |
|---|---|---|
| Title | Sterilizers for medical purposes — Small steam sterilizers — Requirements and testing | Sterilization — Steam sterilizers — Large sterilizers |
| Chamber boundary | Under 60 l and unable to accommodate a 300 × 300 × 600 mm sterilization module | At least 60 l, or able to accommodate at least one sterilization module |
| Equipment addressed | Automatically controlled small sterilizers, steam generated internally by electrical heaters or supplied from outside the sterilizer | Large sterilizers, in health care and also in commercial production of medical devices |
| What it specifies | Performance requirements and test methods for small sterilizers and sterilization cycles used for medical purposes or for materials that may contact blood or body fluids | Requirements and the relevant tests for large sterilizers, with test loads chosen to represent the majority of wrapped metal, rubber and porous loads |
| Stated exclusions | Validation and routine control of moist heat sterilization; sterilizers used for liquids or pharmaceutical products; safety risks of the room; other processes using moist heat, such as formaldehyde and ethylene oxide | Flammable substances; equipment for biological waste or human tissues; a quality management system for the sterilizer manufacturer |
| Edition verified | 2025 edition, superseding EN 13060:2014+A1:2018 | 2015 edition incorporating Amendment 1 (2021) |
What EN 285 actually contains
For a large sterilizer, the standard is not a single pass-or-fail number. Its contents run from mechanical construction through measuring chains to a set of physical performance tests, and the test clauses are the part a facility manager is most likely to see referenced in a service contract. The clause structure below is taken from the published contents of EN 285; the right-hand column is our own reading of what each clause is for, not the standard's text.
| Clause | Title as published | What a facility can take from it |
|---|---|---|
| 8.1 | Steam penetration | The property the cycle exists to deliver into the load |
| 8.2.2 | Bowie and Dick test | The air-removal check associated with vacuum-type cycles |
| 8.2.3 | Air leakage | The chamber integrity measure for a given cycle type |
| 8.2.4 | Air detector | The instrument function that guards against residual air |
| 8.2.5 | Hollow load test | The challenge for instruments with lumens |
| 8.3 | Load dryness | The wet-load outcome that affects packaging and storage |
| 14 | Testing | General conditions, calibration and environment for the tests |
| 16 | Thermometric tests | Temperature measurement at small load and full load |
| 18 | Air leakage test | The method behind the requirement in 8.2.3 |
| 19 | Air detector tests | The methods behind the requirement in 8.2.4 |
| 20 | Load dryness test | The methods behind the requirement in 8.3, for textiles and for metal |
| 6.5 | Recording systems | Records and data processing from the control system |
| 13.3 | Steam supply to the sterilizer chamber | Non-condensable gases, dryness value, superheat, contaminants, pressure fluctuation and feed water |
The practical consequence is that when a service report quotes a figure such as an air leakage rate, it is quoting a clause of EN 285, and when a quotation lists a Bowie and Dick test, it is naming a test the standard defines. Neither clause tells the facility how often to run a biological indicator.
Whose requirement is it, in Canada?
Three layers stack over one another, and only one of them is Canadian law.
The device layer is federal. Under the Medical Devices Regulations, a device intended to disinfect or sterilize a medical device is a Class II device, the manufacturer must hold a licence for it, and a person who imports or sells a medical device must hold an establishment licence unless an exception applies. That establishment licence is what allows a distributor to place the equipment into a Canadian procurement system at all, and it is the reason CliniEco Medical holds Medical Device Establishment Licence MDEL #35334.
The practice layer is provincial and standards-based. In Canada the sterilization-practice family is CSA Z314, and Public Health Ontario's provincial guidance document cites CAN/CSA-Z314.3 for effective sterilization in health care facilities by the steam process. That is a paid standard, so its text is not reproduced here; the provincial document's own requirements and its references to the CSA clauses are what a facility can read directly.
The monitoring layer is where an inspector actually looks. In Ontario's dental framework the requirement is stated in terms of the day: a biological indicator must be placed in a process challenge device and used to test the sterilizer on each day that it is used and for each type of cycle used that day, and the log book must be kept for at least ten years from the last entry. Public Health Ontario's provincial guidance carries the same daily structure and adds that, for dynamic air removal sterilizers, an air removal test with a Class II chemical indicator is performed every day the sterilizer is used. Desktop sterilizers are also expected to be CSA certified.
Facilities that also read United States sources will meet a different routine interval, and it is worth stating the relationship plainly rather than importing it. The United States Centers for Disease Control and Prevention guideline of 2008 records a routine biological monitoring interval longer than Ontario's daily one, and ANSI/AAMI ST79 describes a comparable United States interval. That interval is a United States baseline and not the Ontario requirement; Ontario's requirement is the daily one set out above.
Table 3 sets the two apart for the elements a monitoring log has to answer.
| Element | Ontario requirement | United States baseline |
|---|---|---|
| Biological indicator interval | Each day the sterilizer is used, and for each type of cycle used that day (RCDSO; PHO/PIDAC) | A longer routine interval recorded by CDC (2008) and by ANSI/AAMI ST79 — not the Ontario requirement |
| Air removal test | Every day the sterilizer is used, where the sterilizer is a dynamic air removal type (PHO/PIDAC) | Part of the qualification and routine testing of vacuum-type cycles |
| Record retention | At least ten years from the date of the last entry in the record (RCDSO) | Set by the individual facility's policy under ST79, which itself sets no fixed number of years |
| Machine certification | Desktop sterilizers expected to be CSA certified (RCDSO) | Not the Canadian certification route |
| Re-qualification trigger | After major repairs, relocation, unexplained sterility failures, or changes to the steam supply (PHO/PIDAC) | After installation, relocation, malfunction, major repair, process failure or a change to utilities (ST79 qualification testing) |
Why the same machine can carry different test obligations
It is entirely possible for one benchtop unit to be four things at once, and this is the point that most often confuses a first-time buyer. The same chamber can be:
- an EN 13060 small steam sterilizer, a design and type-test claim the manufacturer makes;
- a CSA-certified tabletop sterilizer, which is what the provincial practice layer expects to see on the data plate;
- an ISO 17665 process, where the facility's own validation, routine monitoring and requalification obligations live; and
- a device sold in the European Union under a harmonised standard tied to EU Regulation 2017/745.
Each of those answers a different question. The EN standard answers "was this machine built and tested to process this class of load". ISO 17665 answers "is the way you run it shown to work, and can you show it again". The provincial framework answers "did you monitor and record it the way this jurisdiction requires". A buyer who asks a supplier which standard "applies" will often be handed the EN number, because that is the number on the manufacturer's declaration. The number that governs the daily log is a different one.
What changes at the purchasing step
A purchasing decision made on the EN number alone will not tell a facility what its log has to contain. Two documents make that decision concrete: the manufacturer's declaration naming the EN standard the unit was tested against, and the monitoring format the facility will run every day it sterilizes.
Where the process is steam and the facility documents each cycle, that means a monitoring format and the reading equipment that fits it. A biological indicator trial pack is a low-commitment way to test a format against an existing workflow before ordering case quantities such as the 24-hour self-contained 50-pack and the 15-well dry block incubator that reads a batch at one time. The packaging side of the same load is answered by Class 4 dual-indicator sterilization pouches, and case-level purchasing runs through the wholesale account page.
Facilities mapping the whole chain, from the chamber specification through to the retained record, can start from the compliance log centre and the sterilization compliance consultation desk.
Before the first load goes through, the two documents worth printing are the RCDSO record-keeping sheet — four record groups covering twenty fields, in the form's own wording, so an inspector comparing paper to form sees the same terms in the same order — and the working log sheet itself, which the compliance log centre prints as a blank page or generates as a dated page without an account or sign-up. A facility that wants its own configuration matched against the regulator's text can have that checked rather than guessed.
Have a question about your own facility? Send it in and you will get a written answer specific to your setup, with the regulation or standard it is based on cited. Ask your compliance question.
EN 13060 and EN 285 split small benchtop and large-chamber sterilizers onto two different standards, but neither one replaces the biological indicator behind a given load. Clinics, long-term care homes and laboratories in Canada can apply for the free 5-pack of 24-hour biological indicators, with shipping covered.
Whichever standard applies to the machine, the same records still have to be kept. A free sterilization self-check runs through the same records and checks an inspector is most likely to look for, by sector — roughly two minutes, printable, no sign-up.
Where to Buy Biological Indicators 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 | 25-pack | $84.99 | Order |
| 24-hour self-contained | 100-pack | $299.00 | Order |
| 3-hour rapid fluorescence | 50-pack | $274.99 | Order |
Round Out Your Sterilization Setup
A biological indicator is one link in the chain — these are the pieces it works with:
- 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
- AAMI ST79 vs CSA Z314.8: Steam Sterilization Guidance Compared
- Process Challenge Devices, Helix Tests and DART: Monitoring Hollow Instruments
- Biological Indicators in Tabletop Sterilizers: Class B and Class N Cycles
- Steam Sterilization Cycle Types: Gravity vs Pre-Vacuum vs Flash
Frequently Asked Questions
Does EN 13060 apply in Canada?
No — not as a legal requirement. EN 13060 is a European standard published by CEN, and it is the reference a manufacturer uses to test a small sterilizer's design and cycles. In Canada the practice requirements come from the CSA Z314 family and the provincial regulator, and the device itself is regulated federally under the Medical Devices Regulations.
What is the difference between a small and a large steam sterilizer?
The difference is written into the two scopes. A sterilizer is large, and falls under EN 285, if it accommodates at least one sterilization module or has a chamber volume of at least 60 litres. It is small, and falls under EN 13060, if the chamber is under 60 litres and cannot accommodate a 300 mm × 300 × 600 mm module.
Which standard covers a type B benchtop autoclave?
A type B unit is part of the small-sterilizer family, and its cycle labelling traces back to EN 13060. That designation describes what the chamber was designed to process; it does not by itself say how often the facility has to monitor the machine.
Is EN 285 the standard that requires a Bowie and Dick test?
EN 285 defines a Bowie and Dick test and an air leakage test among its performance requirements and test clauses. What makes a test recurring is the facility framework: Public Health Ontario's provincial guidance requires an air removal test with a Class II chemical indicator every day the sterilizer is used, where the sterilizer is a dynamic air removal type.
How often does a sterilizer need a biological indicator in Ontario?
The Ontario requirement is stated per day: a biological indicator must be placed in a process challenge device and used to test the sterilizer on each day that it is used, and for each type of cycle used that day. The record must be kept for at least ten years from the last entry.
Where does validation fit if the EN standards do not cover it?
EN 13060 states that it does not specify requirements for the validation and routine control of moist heat sterilization and points to EN ISO 17665. That standard covers the development, validation and routine control of moist heat processes, and it is the layer a facility's own process claims sit on.
Can a manufacturer's EN number be used as proof of day-to-day compliance?
No. An EN declaration describes how the machine was built and tested. Day-to-day compliance is a function of the monitoring and record-keeping the facility performs, which is governed by the provincial framework and the CSA family, not by the EN standard.
CliniEco Medical holds Medical Device Establishment Licence MDEL #35334. This article compares published standard scopes and Canadian regulatory documents and does not make a sterilization performance claim for any product.
Sources
- EN 13060:2025, Sterilizers for medical purposes — Small steam sterilizers — Requirements and testing (scope and status), iTeh Standards catalogue
- EN 285:2015+A1:2021, Sterilization — Steam sterilizers — Large sterilizers (scope and status), iTeh Standards catalogue
- DIN EN 285:2021-12, English translation of EN 285:2015+A1:2021, containing the published contents and amendment list (preview document)
- Medical Devices Regulations, SOR/98-282, sections 26 and 44 and Schedule 1, Justice Laws Website
- Provincial guidance on cleaning, disinfection and sterilization in all health care settings, 3rd edition, Public Health Ontario (PDF)
- RCDSO Standard of Practice: Infection Prevention and Control, version 3, Royal College of Dental Surgeons of Ontario (PDF)
- Guideline for Disinfection and Sterilization in Healthcare Facilities, 2008, United States Centers for Disease Control and Prevention (PDF)
- ANSI/AAMI ST79, Comprehensive guide to steam sterilization and sterility assurance in health care facilities, Association for the Advancement of Medical Instrumentation
- ISO 17665, Sterilization of health care products — Moist heat, International Organization for Standardization
- Compliance log centre, CliniEco Medical
- Sterilization compliance consultation, CliniEco Medical
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