# 16 05 04* EWC code (160504) Aerosols, gas cylinders & fire extinguishers with hazardous contents.

> 16 05 04* EWC code (160504). Hazardous waste code for gases in pressure containers, including halons, such as aerosols and cylinders with hazardous contents.
> Web page: https://complyonsite.com/tools/ewc-code-finder?code=16-05-04

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- Based on the UK List of Waste and WM3
- Search in plain words or codes

## Is 16 05 04* hazardous?

Yes, unless an assessment shows it isn’t. 16 05 04* has an asterisk, and WM3 lists it as mirror hazardous. It is the hazardous side of a choice between codes, decided by [assessing the waste under WM3](https://assets.publishing.service.gov.uk/media/6152d0b78fa8f5610b9c222b/Waste_classification_technical_guidance_WM3.pdf).

If it isn’t hazardous, it’s [16 05 05](https://complyonsite.com/tools/ewc-code-finder?code=16-05-05). If you can’t find out what’s in it, it stays 16 05 04*.

As hazardous waste it moves on a [hazardous waste consignment note](https://complyonsite.com/tools/hazardous-waste-consignment-note?code=160504), not a waste transfer note. [Hazardous waste EWC codes](https://complyonsite.com/tools/ewc-code-finder?list=hazardous)

## What does 16 05 04* cover?

- **Official wording**: “gases in pressure containers (including halons) containing hazardous substances”
- **Sub-chapter**: 16 05 Gases in pressure containers and discarded chemicals
- **Chapter**: 16 Wastes not otherwise specified in the list

## Which everyday wastes take 16 05 04*?

| Waste | When it’s 16 05 04* |
| --- | --- |
| Aerosols and gas cylinders | Still holding gas or product with hazardous substances, such as flammable propellant |

## Which other codes sit beside 16 05 04*?

These codes share sub-chapter 16 05 with it.

| Code | What it is | Hazardous |
| --- | --- | --- |
| [16 05 05](https://complyonsite.com/tools/ewc-code-finder?code=16-05-05) | Gases in pressure containers | No |
| [16 05 06*](https://complyonsite.com/tools/ewc-code-finder?code=16-05-06) | Laboratory chemicals, consisting of or containing hazardous substances, including mixtures of laboratory chemicals | Yes |
| [16 05 07*](https://complyonsite.com/tools/ewc-code-finder?code=16-05-07) | Discarded inorganic chemicals consisting of or containing hazardous substances | Yes |
| [16 05 08*](https://complyonsite.com/tools/ewc-code-finder?code=16-05-08) | Discarded organic chemicals consisting of or containing hazardous substances | Yes |
| [16 05 09](https://complyonsite.com/tools/ewc-code-finder?code=16-05-09) | Discarded chemicals | No |

### Sources

- [List of Waste (legislation.gov.uk)](https://www.legislation.gov.uk/eudn/2000/532/annex)
- [WM3 waste classification guidance (Environment Agency, NRW, SEPA)](https://assets.publishing.service.gov.uk/media/6152d0b78fa8f5610b9c222b/Waste_classification_technical_guidance_WM3.pdf)

The codes apply across the UK. The consignment note here is for England and Wales. Scotland and Northern Ireland have their own.