95 kPa Specimen Bags in Canada: The Transport Rules, Who Is Liable, and What Non-Compliance Costs
What does 95 kPa actually certify on a specimen bag?
A courier collects at 4:40 p.m. from a Toronto collection site. Thirty blood tubes go into a 95 kPa specimen bag, then into a rigid outer box. The bags came from a marketplace listing that prints "95 kPa" in large type. Nobody in the building has seen a test report for that lot. If the box reaches the laboratory with a leak inside it, the first question is not what the bag cost.
The figure describes a pressure test: a packaging must withstand an internal pressure producing a pressure differential of not less than 95 kPa without leakage, the wording used in 49 CFR 173.199(b)(4) for liquid Category B shipments by aircraft.
| What the figure is | What it is not | What establishes compliance in Canada |
|---|---|---|
| A pressure differential the packaging must survive without leaking | A certificate, a registration number or a brand approval | A means of containment manufactured, selected and used per CGSB-43.125 |
| One parameter inside a packaging specification | Proof that the whole three-layer system is compliant | Packaging information and test documentation in a file |
| Measurable, and quoted in a supplier's test report | Visible evidence on the bag panel | Your own record of what was bought, and on what basis |
"95 kPa certified" tells you one test value and nothing about the system it sits in, which is the difference between a bag that passes a bench test and packaging that meets the Canadian requirement.
Which rules actually govern specimen shipping in Canada — TDG, not just IATA?
A clinic-to-laboratory movement by courier is governed by the Transportation of Dangerous Goods Act, 1992 and the Transportation of Dangerous Goods Regulations, SOR/2001-286, and the airline side of the same question is covered in our walkthrough of IATA PI 650 and UN3373 Category B. The packaging requirement is one sentence:
A person must not offer for transport, handle or transport dangerous goods included in Category A or Category B of Class 6.2, Infectious Substances, unless the dangerous goods are in a means of containment that is manufactured, selected and used in accordance with CGSB-43.125. (s. 5.16(1), read 27 October 2026)
Section 1.1 defines a Type P650 means of containment as packaging in compliance with CGSB-43.125 for Type P650 or, if manufactured outside Canada, in compliance with Packing Instruction P650 of the UN Recommendations and the national regulations of the country of manufacture. An imported bag is not outside the rule; it has to trace to the UN instruction instead. Section 4.22.1 adds the marking: the Category B mark is displayed, instead of the Class 6.2 label, on a small means of containment holding UN3373, BIOLOGICAL SUBSTANCE, CATEGORY B.
| Lane | Instrument | Packaging basis | Marking |
|---|---|---|---|
| Road courier inside Canada | TDG Act, 1992 and TDG Regulations | CGSB-43.125, Type P650 for Category B | Category B mark under s. 4.22.1 |
| Air, domestic or international | TDG Regulations Part 12 and the ICAO Technical Instructions, reflected in IATA Packing Instruction 650 | UN Packing Instruction 650 | UN3373 diamond with the proper shipping name |
| Imported packaging used here | TDG Regulations, s. 1.1 definition | UN Packing Instruction 650 plus the regulations of the country of manufacture | As above |
A clinic that never flies a sample still has a packaging requirement, and the document that answers it is not an airline packing instruction.
What are the three packaging layers, and which one is the bag?
Category B packaging is a system of three layers, and a purchase order usually names one of them. The primary receptacle holds the specimen, the secondary packaging is the leakproof bag the specimen sits in, and the outer packaging is the rigid box carrying the assembly. A 95 kPa specimen bag is the secondary layer.
| Layer | What it is in a clinic | What it has to do | Who normally buys it |
|---|---|---|---|
| Primary receptacle | Blood tube, urine container, swab tube, histology pot | Hold the specimen and stay closed | Clinic or laboratory consumables budget |
| Secondary packaging | 95 kPa specimen bag plus absorbent material | Contain a leak from the primary receptacle | Clinic or laboratory, the packet under review |
| Outer packaging | Rigid box or shipper | Protect the bag and keep the assembly closed | Often the courier or the laboratory's shipper |
Two details catch buyers out. The document pouch on a two-pocket bag is for the requisition: the front pocket carries the container and the absorbent material, the rear pouch keeps paperwork off the sample. And filling limits apply per layer, with section 5.5(2)(b) requiring that the means of containment could not become liquid full at or below 55 °C.
Leak risk starts in the primary layer, so the container matters as much as the bag: a 90 mL graduated specimen cup in a 600-cup case is a primary layer, and the bag around it is what the Category B requirement polices.
What must a compliant bag do beyond holding liquid?
A bag that holds water is doing the easy part. What gets tested is narrower, as the breakdown of the 95 kPa test sets out.
- Hold a pressure differential without leakage, which is what the 95 kPa figure refers to.
- Stay leakproof at the closure, meaning the adhesive strip closes the full width rather than the middle of it.
- Carry absorbent material able to take the entire contents of the primary receptacles.
- Survive a drop from not less than 1.2 m, the test in 49 CFR 173.199(a)(4), with no leakage from the primary receptacle afterwards.
- Carry the marking that identifies the contents, and the information that tells the user how to fill and close it.
Subsection 5.16(2) puts the last item in a form a buyer can act on: where the packaging is made available as a kit, the manufacturer or distributor must provide the packaging information required under clause 4.4 of CGSB-43.125 to the purchaser at the initial purchase, and to a user on request. What does not exist matters equally: no national register of approved specimen bags, no per-bag certificate, no inspection regime that stamps a bag as compliant.
What happens if the bag was never certified?
This is the question the category avoids, and it has a statutory answer in four steps, all of them in the Act rather than in guidance.
| Step | Provision | What it says, in substance | What it means for a buyer |
|---|---|---|---|
| 1 | TDG Act, s. 22(3) | A defendant engaged in an activity the Act applies to shall be presumed to have been at fault or negligent unless it is established, on a balance of probabilities, that all reasonable measures to comply were taken | The burden starts with the party holding the packaging, not the regulator |
| 2 | TDG Act, s. 33(2) | On indictment, imprisonment for a term not exceeding two years; on summary conviction, a fine not exceeding $50,000 for a first offence and not exceeding $100,000 for each subsequent offence | Statutory maximums, not automatic outcomes |
| 3 | TDG Act, s. 34(1) | The court may prohibit the person for not more than one year from engaging in any activity regulated under the Act, order compensation and require repair of environmental damage; s. 34(3) caps the total at one million dollars | The exposure can reach the activity itself, not only a fine |
| 4 | TDG Act, s. 22(1) and (2) | Costs reasonably incurred in taking measures may be recovered jointly and severally from the persons whose fault or negligence caused or contributed to the circumstances | Clean-up costs follow the fault finding |
Two framing points keep this honest. The fines in section 33(2) are maximums, so the section is not a price list, and a court decides each case on the evidence. The presumption in section 22(3) is rebuttable: it is defeated by showing that all reasonable measures were taken, on a balance of probabilities.
Which brings the question back to documentation. If the packaging was never tested and the file holds no test report, no packaging information and no lot record, the party answering that presumption has nothing to put in front of it. That is the concrete cost of an untested bag, paid in evidence rather than in price. Summary conviction proceedings may begin within five years of the subject matter under section 35, so the file has to outlive the shipment.
Who is responsible — the sender, the courier, or the lab?
Responsibility does not travel with the bag and does not transfer at the dock. The person who handles, offers for transport or transports the goods carries the training duty in section 6.1(1); section 6.1(2) forbids an employer from directing that work without the same footing.
The consignor, the party that prepares the package and hands it to the carrier, carries the duty to classify and pack. A courier carries its own carrier obligations and may refuse a package that is not properly prepared. A receiving laboratory applies acceptance criteria of its own, and one handed a leaking box has a record to write rather than a bag to blame.
A supplier sells packaging. Buying a compliant bag does not move the packaging duty to the seller, and no supplier can take on the presumption section 22(3) places on the party engaged in the activity. What a supplier can do is hand over the documentation that makes the duty answerable, so ask at the purchase.
How do you verify a bag is actually compliant before you buy?
Verification is a document request, and the Regulations give it a hook in the kit case: subsection 5.16(2) requires the clause 4.4 packaging information at the first purchase and to a user on request where the stock is a kit. Ask for the same file on loose stock, because the Type P650 basis in subsection 5.16(1) applies either way.
| What to ask for | What it has to show | Who issues it |
|---|---|---|
| Packaging information | Filling and closing instructions under clause 4.4 of CGSB-43.125 | Manufacturer or distributor, at first purchase |
| Test report | A report number, the pressure differential held without leakage, and the test date | The testing laboratory named on the report |
| Basis statement | CGSB-43.125 Type P650, or UN Packing Instruction 650 for imported stock | Manufacturer |
| Lot or batch coding | Traceability from carton to the bags inside it | Manufacturer |
| Marking and closing print | Category B marking and the closing sequence on the bag itself | Manufacturer, visible on the finished product |
Four things are not evidence: a printed 95 kPa figure, which is a claim rather than a result; a compliance statement with no report number; a photograph of a laboratory using the product; and a certificate naming no standard, since such a document cannot answer the regulation. We publish the test summary for our own bags, report number and hold time included, so the same standard can be applied to us: 95 kPa specimen transport bags in eight size and pack combinations.
What should the paperwork look like if an inspector asks?
Training records are the most frequently missing document here, and section 6.3(1) spells out what a certificate contains: the employer's name and business address, the employee's name, the expiry date preceded by the words "Expires on" or "Date d'expiration", and the aspects of handling, offering for transport or transporting for which the employee is trained.
| Record | Basis | How long it stays | On request |
|---|---|---|---|
| Training certificate | s. 6.3(1) | Until two years after expiry, s. 6.6 | Within 15 days of a written request, s. 6.7 |
| Certificate expiry | 24 months for aircraft, 36 months for road, rail or vessel, s. 6.5 | Same retention | Same 15-day window |
| Packaging information | Issued at first purchase under s. 5.16(2), kit stock | Life of the stock | To any user of the packaging |
| Test report and lot coding | Supplier documentation behind the Type P650 basis | With the purchase file | Referenced in the file you produce |
The marking side has a physical record problem: print that fades, adhesive that releases in the cold, a proper shipping name on the carton but not beside the diamond. The legibility questions around specimen bag printing are worth settling before a shipment rather than after a rejection.
How does this differ between Canada and the US?
The two systems reach similar packaging shapes by different routes, and the differences matter to anyone buying across the border.
| Point | Canada | United States |
|---|---|---|
| Governing instrument | TDG Act, 1992 and TDG Regulations, SOR/2001-286 | 49 CFR 173.199 |
| Category B packaging basis | CGSB-43.125 Type P650 through s. 5.16(1) | Triple packaging under 173.199(a)(1) |
| Where 95 kPa attaches | Inside the Type P650 specification | Paragraph (b)(4), for liquid shipments by aircraft |
| Quantity limits | Set by the safety standard, plus the filling limit in s. 5.5 | 1 L per primary and 4 L per outer for aircraft, 173.199(b)(5) |
| Mechanical test | Through the packaging standard | Drop test at 1.2 m, outer surface at least 100 mm by 100 mm, 173.199(a)(4) |
Read the American rule closely and a nuance appears: paragraph (b)(4) attaches the 95 kPa differential to shipments by aircraft, which explains why a number carried on a Canadian ground-transport bag traces to an air requirement in its own standard lineage. The Canadian rule turns instead on whether the system is a Type P650 means of containment.
What does a compliant specimen bag actually cost per specimen?
Cost per specimen is bag price divided by pack count, which is where quotes get compared wrongly. Every size is listed as a box of 100 and as a case of ten boxes, so the same bag costs less per unit at case volume.
| Configuration | Pack count | List price | Cost per bag |
|---|---|---|---|
| 6 by 9 in, box | 100 | $321.00 | $3.21 |
| 6 by 9 in, case | 1,000 | $2,054.00 | $2.05 |
| 7 by 11 in, box | 100 | $458.00 | $4.58 |
| 7 by 11 in, case | 1,000 | $2,931.00 | $2.93 |
| 8 by 10 in, box | 100 | $475.00 | $4.75 |
| 12 by 15 in, box | 100 | $1,814.00 | $18.14 |
| 3-wall 6 by 9 in, bulk | 1,000 | $127.60 | $0.13 |
The last line is a different product class and worth naming as such. A three-wall bag with a built-in absorbent pad is a leak-resistant transport bag priced for routine ground movement of samples not offered as Category B infectious substances. When the sample is a Category B substance, the secondary packaging has to be a Type P650 system with documentation behind it, which is the first row rather than the last.
A worked example: a laboratory moving forty specimens a day, five days a week, uses about 200 bags a week, or $410 a week at the 6 by 9 case price, with 12 by 15 boxes for oversized containers on a separate line. Absorbent material and the rigid outer box sit above that figure. Both formats sit in the laboratory consumables range.
For a clinic, the honest comparison is not two bag prices but a bag with a test report against one without, where the second column has an empty cell where the answer to section 22(3) should be.
References
- Transportation of Dangerous Goods Act, 1992 (S.C. 1992, c. 34), s. 22 — Justice Laws, Canada; s. 22(1) to (3); verified 27 Oct 2026
- Transportation of Dangerous Goods Act, 1992, ss. 33 to 35 — Justice Laws, Canada; ss. 33(2), 34(1), 34(3), 35; verified 27 Oct 2026
- Transportation of Dangerous Goods Regulations (SOR/2001-286), s. 5.16 — Justice Laws, Canada; consolidation to SOR/2026-127; s. 5.16(1) and (2); verified 27 Oct 2026
- Transportation of Dangerous Goods Regulations, s. 1.1, Type P650 means of containment — Justice Laws, Canada; definition; verified 27 Oct 2026
- Transportation of Dangerous Goods Regulations, s. 4.22.1, Category B mark — Justice Laws, Canada; wording; verified 27 Oct 2026
- Transportation of Dangerous Goods Regulations, Part 6, ss. 6.1 to 6.7 — Justice Laws, Canada; training and records; verified 27 Oct 2026
- 49 CFR 173.199, Category B infectious substances — eCFR, United States; paragraphs (a)(1), (a)(4), (b)(4), (b)(5); verified 27 Oct 2026
Buying for a facility? Open a wholesale and institutional account for case pricing, purchase-order billing and a named account contact.
Related Reading
- UN3373 Category B Packaging Explained: IATA PI 650, 95 kPa and What Inspectors Look For
- What Does 95 kPa Mean on a Specimen Transport Bag?
- Labelling and Printing Specimen Bags: What Stays Legible Through Transit
- Specimen Bag Par Levels for an Independent Laboratory in Ontario
Frequently Asked Questions
Is a bag printed with 95 kPa automatically compliant in Canada?
No. The figure is one pressure test value. Subsection 5.16(1) of the Transportation of Dangerous Goods Regulations requires the means of containment for Category A or B infectious substances to be manufactured, selected and used in accordance with CGSB-43.125, where the Type P650 requirements sit. A printed figure is not that documentation.
Which Canadian regulation applies to a specimen bag sent by courier within Ontario?
The federal Transportation of Dangerous Goods Act, 1992 and its Regulations, which cover road, rail, air and vessel movements across Canada. A courier run from a clinic to a laboratory is a road movement, so the packaging basis is CGSB-43.125 Type P650 through subsection 5.16(1), not airline instructions.
Do staff need dangerous goods training to pack and hand over specimens?
Yes, where the specimen is a Category B infectious substance and they handle, offer for transport or transport it. Subsection 6.1(1) requires the person to be adequately trained and to hold a training certificate, or to work in the presence and under direct supervision of someone who is. Subsection 6.1(2) binds the employer as well.
How long does a training certificate last and how long are records kept?
Section 6.5 sets expiry at 24 months for aircraft and 36 months for road, rail or vessel. Section 6.6 requires the training record and a copy of the certificate to be kept until two years after expiry, and section 6.7 requires production within 15 days of an inspector's written request.
Who is legally responsible if a specimen bag leaks in transit?
The duty to classify, pack and offer the shipment sits with the consignor, the party that prepares and hands over the package, not the courier and not the supplier who sold the bag. Section 22(2) allows recovery jointly and severally from the persons whose fault or negligence caused or contributed to the circumstances.
What documents should a supplier provide for a 95 kPa specimen bag?
The packaging information required under clause 4.4 of CGSB-43.125, which subsection 5.16(2) requires at the initial purchase and to a user on request where the packaging is made available as a kit, plus a test report with a report number, the stated pressure differential and the date, and lot coding on the bags.
Can a Category A infectious substance travel in a 95 kPa specimen bag?
No. Subsection 5.16(1) covers Category A and B together, but the systems differ: Category A uses a Type P620 system and Category B a Type P650 system, both defined in section 1.1 by reference to CGSB-43.125.
What does it mean when a specimen bag is described as not certified?
It means no design approval was issued for that bag, because the regulations do not issue one per bag. What exists instead is the manufacturer's test documentation and the packaging information that travels with the system. Without those, the buyer holds a packaging duty with nothing to show for it.
CliniEco Medical holds Health Canada establishment licence MDEL #35334 as an importer of medical devices, at 255 Duncan Mill Road, Suite 512, Toronto, ON M3B 3H9. Product specifications last verified against our live catalogue on 2026-10-27. Reviewed quarterly. Last review: 2026-10-27.
Last updated: October 2026.
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