Skip to content

COSHH Assessment — Chlorinated Spray & Wipe (Greyland)

Ref Revision Issue Date Next Review Assessor Approved By
COSHH_04 2 1 June 2026 1 June 2027 Sean Ashton Aaron Mason, Director

Key references

Open Safety Data Sheet (PDF)

Download this COSHH as a Word document

1. Product identification
Product name Chlorinated Spray & Wipe (Greyland)
Supplier Greyland Ltd
Active ingredients / CAS Sodium hypochlorite (< 5%)
CAS: 7681-52-9
Physical form Liquid spray
Appearance / odour Clear/pale yellow liquid, chlorine odour
Use Disinfection of water systems, equipment and surfaces

2. Hazard classification

Overall classification: Skin Corrosive Category 1B, Aquatic Acute 1

Signal word: Danger

Hazard statements (H-codes)

Code Statement
H314 Causes severe skin burns and eye damage.
H410 Very toxic to aquatic life with long lasting effects.
EUH031 Contact with acids liberates toxic gas.

Precautionary statements (key P-codes)

Code Statement
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P301+330+331 IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
P303+361+353 IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water.
P305+351+338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P310 Immediately call a POISON CENTRE or doctor/physician.
P405 Store locked up.
P501 Dispose of contents/container to an authorised waste contractor in accordance with local regulations.

GHS pictograms

  • GHS05 — Corrosive
  • GHS09 — Environmental hazard

3. Persons at risk

  • Water-treatment operatives
  • Maintenance staff
  • Cleaning personnel

4. Routes of exposure

  • Inhalation: Vapour causes respiratory irritation
  • Skin contact: Severe burns
  • Eye contact: Severe damage — risk of blindness
  • Ingestion: Severe corrosive effects on digestive tract

5. Workplace exposure limits (HSE EH40/2005)

Substance 8-hr TWA 15-min STEL
Chlorine (released) 0.5 ppm 1 ppm

6. Control measures — hierarchy of controls

Elimination / substitution: Evaluated where practicable — see Section 12.

Engineering controls:

  • Use in well-ventilated areas
  • Eyewash station and safety shower within 10 m
  • Store in bunded area

Administrative controls:

  • Never mix with acids or other chemicals
  • Use minimum quantity required
  • Restricted-access storage
  • Labelled spray bottles only

Personal Protective Equipment (PPE):

  • PVC or nitrile chemical-resistant gloves
  • Chemical safety goggles
  • Face shield when decanting
  • Chemical-resistant apron

7. Storage
Temperature 5–25 °C
Location Cool, ventilated area away from sunlight
Avoid Acids, ammonia, metals, organics, heat
Container Original sealed container — do not decant into unlabelled bottles

8. Emergency procedures

First aid

Route Action
Eyes Rinse with water for at least 15 minutes, holding eyelids apart. Seek immediate medical attention.
Skin Remove contaminated clothing. Wash with plenty of water for 15 minutes. Seek medical attention.
Inhalation Move to fresh air. Seek medical attention if symptoms persist.
Ingestion DO NOT induce vomiting. Rinse mouth. Give small sips of water if conscious. Seek immediate medical attention.

Spillage

Evacuate area. PPE as above. Dilute with water. Absorb with inert material. Neutralise with sodium thiosulphate if available. Dispose as hazardous waste.

Fire

Not flammable but releases toxic fumes (Cl₂) in fire. Use water spray to cool containers.

Emergency contacts

  • Emergency services: 999
  • NHS non-emergency: 111
  • AMWS supervisor: Jason May
  • HSQE support: Sean Ashton (Onyx Operations)

9. Waste disposal

Hazardous waste. Dispose via authorised chemical-waste contractor. EWC code 20 01 29* (detergents containing hazardous substances).

10. Risk rating

Before controls With controls
High Low

Risk rating methodology: Severity × Likelihood = Risk (S × L = R). See POL_HSQE_21 — Risk Assessment for the full scoring matrix.

11. Training requirements

  • COSHH briefing
  • Spill and emergency procedures
  • Decanting safely
  • Fire awareness

12. Monitoring and review

  • Weekly visual check of storage area
  • Bi-monthly PPE condition check
  • Annual COSHH review

13. References

Assessment approved by: Aaron Mason, Director · 1 June 2026

This assessment must be reviewed annually or when circumstances change — whichever is sooner.