Spill Response Kits — Complete Technical Specification Guide
Legal Framework: COSHH Regulation 9 and EA PPG22
Spill response kits are not optional equipment — they are a legal requirement under two overlapping frameworks that apply to virtually every UK workplace handling hazardous liquids.
COSHH Regulation 9 (Control of Substances Hazardous to Health Regulations 2002) requires employers to establish arrangements for dealing with accidents, incidents and emergencies involving exposure to hazardous substances. This explicitly includes containment of spills. A workplace COSHH assessment that identifies a hazardous liquid must also specify the response capability in place, including spill kit provision.
EA PPG22 (Environment Agency Pollution Prevention Guidance Note 22 — Dealing with Spills) sets out best practice for spill response. While guidance rather than primary legislation, the Environment Agency references PPG22 compliance when assessing whether a duty of care has been met following a pollution incident. Failure to follow PPG22 is routinely cited in enforcement notices.
Together, these create an effective obligation: any site storing or using hazardous liquids must have appropriate, maintained, and accessible spill response capability.
Oil Spill Kit — Minimum Specification
An oil spill kit must contain hydrophobic (oil-selective) absorbent materials and the PPE required to use them safely. The minimum specification for a compliant oil spill kit is:
- Absorbent pads — minimum 10 pads for kits rated up to 25 litres; oil-selective (hydrophobic) grade, not general purpose
- Absorbent socks / containment booms — at least 2 socks for perimeter containment and drain protection
- Absorbent pillows — for larger pooled volumes
- Heavy-duty disposal bags — minimum 2 × yellow hazardous waste bags, minimum 120-micron gauge, sealed with cable ties
- Cable ties — minimum 6, for sealing disposal bags securely
- Chemical-resistant gloves — nitrile minimum, long-cuff preferred; latex gloves are not suitable for hydrocarbon exposure
- PPE instruction card — laminated, detailing donning order and disposal procedure
- Sealed packaging — kit must be in a sealed bag, bin or drum so that used items are not mistaken for fresh
Oil-selective absorbents are typically white or grey and are hydrophobic — they repel water while absorbing hydrocarbons. This makes them ideal for use on wet surfaces (rain-soaked yards, drains) where a general-purpose absorbent would be rapidly saturated by water before the oil is absorbed.
Chemical Spill Kit — Additional Requirements
Chemical spill kits must address a wider range of hazards than oil kits. The absorbent must be chemically compatible with the substance involved, and the PPE must protect against a higher level of skin, eye, and respiratory hazard. Minimum additional requirements beyond the oil kit spec:
- Face shield — a full face shield (not just chemical splash goggles) is required for any chemical with splash or vapour risk; meets EN 166 standard minimum
- Chemical-resistant apron — polyethylene or polypropylene laminated apron to protect clothing and skin from splashes; disposable single-use preferred
- Chemically rated absorbent — must be rated for the specific chemical class (acid-resistant, solvent-resistant, or universal); standard polypropylene pads are not suitable for corrosive chemicals
- Neutralising agent — for acid spills, a sodium bicarbonate-based neutraliser; for alkali spills, a citric acid-based neutraliser; pH test strips to confirm neutralisation before disposal
- Hazardous waste labels — pre-printed adhesive labels with EWC code 15 02 02* and hazard diamond
- Vapour mask or respirator — for volatile chemicals or those with STEL/TWA limits that could be exceeded during clean-up
The COSHH assessment for each chemical in use should specify which kit type is required. A site using multiple chemicals of different classes may need multiple kit types, or a comprehensive universal kit with appropriate absorbents for each substance.
General Purpose Spill Kit
General purpose (GP) spill kits use cellulose-based or universal polypropylene absorbents that are suitable for aqueous chemicals, water-miscible solvents, and oils. They are the most versatile option for sites with mixed hazard profiles or where the exact spill substance is not always predictable.
Typical applications for GP kits include:
- Workshops where oils, coolants, and cleaning fluids are all in use
- Kitchens and food processing areas (cellulose absorbents are food-safe)
- Laboratories with mixed reagent storage
- Loading bays receiving multiple product types
Note that GP kits are not a substitute for oil-selective kits where the site risk assessment specifically identifies hydrocarbon spill risk near a watercourse — in those cases, the oil-selective performance of a dedicated oil kit is required.
Marine SOPEP Kit — IMO MARPOL Annex I
Vessels operating in international waters are subject to MARPOL Annex I (Prevention of Pollution by Oil). Ships of 400 gross tonnage and above, and all oil tankers of 150 gross tonnage and above, must carry a Shipboard Oil Pollution Emergency Plan (SOPEP). The SOPEP kit is the physical spill response equipment specified within that plan.
Key requirements under IMO requirements:
- Kit contents must be specified in the vessel-specific SOPEP document, approved by the flag state administration
- The kit must support a minimum 12-hour response capability without external assistance — sufficient to manage a minor spill and contain it until professional response arrives
- Contents typically include: oil absorbent pads and socks, overboard discharge plugs (for engine room drains), non-sparking tools, PPE, temporary patching compounds, and communications equipment reference
- The kit must be stored in a designated, marked location accessible to the crew at all times
- SOPEP drills must be conducted and logged; port state control inspectors check both the kit and the drill records
For fishing vessels and small commercial craft not subject to full MARPOL requirements, the MCA (Maritime and Coastguard Agency) recommends equivalent spill response capability as good practice.
Kit Sizing — The Worst-Case Spill Method
Selecting the correct kit capacity is a regulated decision. The Environment Agency and COSHH guidance both point to the worst-case spill method as the correct sizing basis:
- Identify the largest single container of hazardous liquid in the area covered by the kit
- Multiply that volume by 1.1 (110%)
- This figure is the minimum absorbent capacity of the kit in litres
Examples:
- 200-litre drum of oil → minimum kit capacity 220 litres
- 25-litre jerry can of solvent → minimum kit capacity 28 litres
- 1,000-litre IBC of chemical → minimum kit capacity 1,100 litres (multiple kits or a large wheeled unit required)
Where multiple containers are in use simultaneously, or where the area has a single drain that could carry the spill to a watercourse, the sizing calculation should be reviewed with a risk assessor.
Placement Rules and Signage
A spill kit that cannot be found in an emergency is useless. Placement requirements are:
- Within 10 metres of the identified spill risk (storage area, dispensing point, or point of use)
- Not blocked — the kit must never be obscured by pallets, machinery, or stored goods
- Clearly signed — ISO 7010 sign E007 (Emergency eyewash) is not appropriate; use a custom safety sign indicating "Spill Kit" with directional arrows where needed
- Accessible in under 30 seconds — any responder on the site should be able to locate and reach the kit within 30 seconds from the hazard point
- Not on wet ground — kits stored directly on floors in damp areas will degrade; use a dedicated bin or wall bracket
Monthly Inspection Checklist
Spill kits must be inspected monthly to confirm they remain fit for purpose. A compliant monthly inspection covers:
- ✅ Seal intact — if the kit has a tamper-evident seal or tie, it must be intact (indicates the kit has not been used and not restocked)
- ✅ No depleted items — if the seal is broken, count all items against the kit inventory; replace any missing or partially used items
- ✅ PPE in date — gloves, masks, and aprons have shelf lives; check expiry dates
- ✅ Instructions legible — laminated instruction card must be readable; replace if faded or damaged
- ✅ Container undamaged — bin, bag, or drum must be intact; no water ingress
- ✅ Location clear — confirm kit is still accessible and not blocked
- ✅ Sign visible — signage must be intact and legible from 5 metres
Monthly inspections should be recorded in a log (paper or digital). In the event of an Environment Agency inspection following a spill, inspection records demonstrate that the duty of care was being met.
Annual Audit Requirements
In addition to monthly checks, a full annual audit of spill response capability should be conducted, typically as part of the COSHH assessment review cycle:
- Full contents check against the kit specification — verify quantities, grades, and sizes of all absorbents and PPE
- Replace any used, expired, or degraded items — do not retain partially used absorbents in a restocked kit
- Review kit sizing — if the site has changed (new chemicals introduced, IBC sizes increased), recalculate kit capacity requirements
- Update the COSHH assessment to reference the current kit locations, types, and capacities
- Check that all relevant staff have received spill response training and that the training record is current
- Review disposal arrangements — confirm licensed waste carrier contract and consignment note process remain in place
Disposal of Used Absorbents — Hazardous Waste
Used spill kit absorbents contaminated with hazardous substances are classified as hazardous waste under the Hazardous Waste (England and Wales) Regulations 2005:
- EWC code: 15 02 02* — "absorbents, filter materials (including oil filters not otherwise specified), wiping cloths, protective clothing contaminated by dangerous substances"
- Must be placed in heavy-duty yellow hazardous waste sacks, sealed with cable ties, and labelled with the EWC code and hazard information
- Must be removed by a licensed waste carrier — an Environment Agency registered carrier holding a current waste carrier licence
- A consignment note (waste transfer note) must be completed, signed by both producer and carrier, and retained for a minimum of 3 years
- Hazardous waste must not be mixed with general waste, recycling, or other waste streams
Producing premises generating more than 500kg of hazardous waste per year must register with the Environment Agency as a hazardous waste producer.
Spill Kit Type Comparison
| Kit Type | Absorbent Type | Suitable For | Minimum PPE | Key Standard |
|---|---|---|---|---|
| Oil Spill Kit | Hydrophobic polypropylene (white) | Hydrocarbons only (oils, fuels, lubricants) | Nitrile gloves, instruction card | OSR 2001, EA PPG22 |
| Chemical Spill Kit | Chemical-resistant universal absorbent | Acids, alkalis, solvents, aggressive chemicals | Face shield, chemical apron, nitrile gloves, neutraliser | COSHH Reg 9, EA PPG22 |
| General Purpose Kit | Cellulose or universal polypropylene (grey) | Oils, aqueous chemicals, water-miscible solvents | Nitrile gloves, instruction card | COSHH Reg 9, EA PPG22 |
| Marine SOPEP Kit | Oil-selective marine-grade absorbent | Oil spills aboard vessels, bilge and fuel spills | Gloves, PPE per SOPEP plan, non-sparking tools | IMO MARPOL Annex I, SOPEP plan |
Browse Our Spill Kit Range
Use the links below to find the right spill response kit for your application:
- Oil Spill Kits — hydrophobic absorbents for hydrocarbon spills
- Chemical Spill Kits — chemical-rated absorbents and enhanced PPE
- General Purpose Spill Kits — versatile kits for mixed hazard environments
- Marine SOPEP Spill Kits — IMO MARPOL Annex I compliant marine kits
Frequently Asked Questions
What legislation requires spill kits in the workplace?
COSHH Regulation 9 requires employers to have arrangements in place for accidents, incidents, and emergencies involving hazardous substances. The Environment Agency's PPG22 guidance sets out best practice for spill response. Together, these effectively mandate that spill kits are available wherever hazardous liquids are stored or used.
How do I calculate what size spill kit I need?
Use the worst-case spill method: identify the largest single container of hazardous liquid in the area, multiply its volume by 1.1, and this is your minimum kit capacity. For example, a 200-litre drum requires a spill kit rated for at least 220 litres of absorbency.
What is the difference between an oil spill kit and a chemical spill kit?
Oil spill kits use hydrophobic (water-repelling) absorbents designed specifically for hydrocarbons. Chemical spill kits use chemical-resistant absorbents suitable for a wider range of substances, and include additional PPE such as a face shield, chemical-resistant apron, and neutralising agents for acids or alkalis.
How should used spill kit absorbents be disposed of?
Used absorbents contaminated with hazardous substances are classified as hazardous waste under EWC code 15 02 02*. They must be placed in heavy-duty yellow hazardous waste sacks, sealed, labelled, and removed by a licensed waste carrier. A consignment note (waste transfer note) must be completed and retained for at least 3 years.
Where should spill kits be located?
Spill kits must be positioned within 10 metres of an identified spill risk (storage area, dispensing point, or use area). They must not be blocked or obscured, must be clearly signed with an ISO 7010-compliant sign, and should be accessible in less than 30 seconds. In large facilities, multiple kits may be required.
What is a SOPEP kit and who needs one?
A SOPEP (Shipboard Oil Pollution Emergency Plan) kit is required under IMO MARPOL Annex I for ships of 400 gross tonnage and above, and all oil tankers of 150 gross tonnage and above. The kit contents are specified in the vessel's SOPEP document and must support a minimum 12-hour response capability without external assistance.