H4.3 federal waste code Waste that ignites or gives off flammable gas when wet.
- Free, no account
- Based on SOR/2021-25 and official ECCC guidance
- Nothing is stored
Find a Canadian waste code
H4.3, Any substance or waste.
IWIC H characteristic codes
Any substance or waste
Use H4.3 when the material presents any substance or waste.
ComplyOnSiteIs Federal H4.3 hazardous waste?
Not from this code alone. Federal H4.3 is one part of how hazardous waste and hazardous recyclable material are described. It names a characteristic, and federal status depends on the full evidence and on the definitions and exclusions in SOR/2021-25.
On a federally regulated international shipment, the applicant records the waste classification in the waste-line details of the federal notification in CNMTS. The movement rules and exclusions apply.
What does Federal H4.3 cover?
This covers material that becomes spontaneously flammable, or gives off flammable gas in dangerous amounts, when it meets water. It isn't a flash-point test for liquids. How the waste reacts to water decides it, not its name or industry.
- Official wording
- Any substance or waste that is liable, by interaction with water, to become spontaneously flammable or to give off flammable gases in dangerous quantities. (In contact with water, spontaneous combustion or emission of flammable gases)
- Rule
- SOR/2021-25
Is waste that reacts with water Federal H4.3 or another code?
| Code | When it fits |
|---|---|
| H4.3 | Contact with water can make it ignite on its own or give off flammable gas in dangerous quantities. |
Decide from where the material came from, how it was used, what is in it and the test results. A shared chemical or process word doesn't make 2 codes interchangeable. The full listed condition and any federal exclusion still decide.