Under GB CLP, labels and symbols present hazards in a consistent way so workers and contractors can understand them at a glance.
A label's design consists of a signal word, a pictogram, and specific text detailing both the hazards involved and the necessary precautions to take.
The same information appears in Safety Data Sheets (SDS). Standardised chemical safety signs and symbols keep messaging aligned across labels, postings, and procedures.
Standards that are Applicable and How They are Integrated
| Standard / Authority | Scope | Where it applies | What it standardises | Notes on integration |
|---|---|---|---|---|
| HSE & GB CLP | GHS-aligned classification, labels, and SDS | On containers, labels, and in training | Label elements (signal word, pictograms, hazard/precautionary statements); SDS format | Establishes the content workers read on labels and in SDS |
| Safety Signs and Signals Regulations 1996 (L64 guidance) | Workplace safety sign duties | Entrances, rooms, process areas, temporary worksites | When signs are required; general sign categories and meaning | Ensures signs are present where significant risk remains after controls |
| BS EN ISO 7010 / ISO 3864 | Design system for symbols, colours, shapes | Fixed facility signage and wayfinding | Standard symbols, colour codes, and layouts | Delivers consistent recognition across sites and suppliers |
| ADR & Hazchem (EAC) | Transport and emergency identification | Loading bays, external doors, vehicles | ADR plates, UN numbers, emergency action codes | Complements GB CLP by informing responders during transport and interface points |
GHS Pictograms and Meanings
This section depicts what GHS pictograms look like and what they mean. There are 9 in total, each assigned to a specific type of hazard.
How to Interpret the Hazchem Panels and ADR Plates
At transport interfaces and external loading areas, responders rely on ADR orange plates, UN numbers, and Hazchem (Emergency Action) Codes.
Plates identify the dangerous goods and the relevant substance number; Hazchem codes provide immediate cues on firefighting media, containment, and PPE.
Site arrangements typically reflect these markings so responders can act without delay.
Signal Words, Colours, and Layout Requirements
The signal word should match the product’s classification, and standard colours and layouts are followed so messages remain clear.
- “Danger” indicates immediate, serious hazards
- “Warning” indicates significant but less immediate hazards
- “Caution” marks potential hazards or unsafe practices.
For facility signs, BS EN ISO 7010 symbols and colours support fast recognition.
Where Chemical Safety Signs and Labels Must Be Placed
Primary containers come fully labeled from the supplier, and these labels should be kept intact.
When a chemical is poured into another container and will be used later or left unattended, a compliant workplace label that reflects the SDS should be applied.
- In active work areas, warning signs should be placed at critical decision points, such as entrances, exits, and equipment controls, and must be taken down as soon as the risk is eliminated.
- In laboratories, lab safety and chemical hazard signs are positioned near eyewash stations, storage cabinets, and entry doors so key information is visible before work begins.
Training and Competency Development
The best way to develop your team's safety skills is with brief and frequent training updates. A proven method is:
- Recognize the Symbol: Know what the safety icon means at a glance.
- State the Risk: Clearly describe the potential hazard.
- Apply the Control: Confidently use the correct safety measure, such as wearing protective equipment, ensuring good airflow, or using a shut-off valve.
You can easily find ready-to-use visuals and handouts from official safety organizations to support your training.
Selecting Appropriate Signage for Your Facility
- In handling areas, GB CLP label elements that match the SDS are expected.
- For loading bays, stores, and external doors, ADR plates and Hazchem information are commonly present so responders can assess risk before entry or transport.
- For general warnings and routes, BS EN ISO 7010 symbols and layouts support consistency across the site.
Vendor and authority guides can assist in translating SDS details into the appropriate mix of labels and area signs.
Common Compliance Mistakes
Teams often run into some common issues like:
- Missing labels on secondary containers after a transfer
- Choosing the wrong signal word
- Using non-standard colours or layouts that make labels harder to read.
GB CLP sets what the label must say, while the Safety Signs and Signals Regulations and BS EN ISO 7010 explain how facility signs should look and where they should be placed
Final Thoughts
Chemical safety signs act as a shared language. GB CLP label elements on containers, BS EN ISO 7010 formats on area signs, and ADR/Hazchem at transport points together create a consistent system. Keeping labels current, delivering brief refreshers, and maintaining easy access to the SDS help people make better decisions and work safely every day.
FAQs
1) How do GB CLP pictograms differ from ADR/Hazchem markings?
GB CLP pictograms show the type of hazard on container labels and SDSs. ADR plates and Hazchem codes support transport and emergency response at doors, loading bays, and on vehicles. Both may be present when relevant.
2) Do secondary containers need labels?
Yes. If a chemical is transferred, a workplace label should be applied before use or if the container will be left unattended. Wording should reflect the SDS.
3) Which signal word should be selected?
Follow the product’s GB CLP classification. The word “Danger” indicates a higher level of risk than “Warning,” a rule that creates uniformity across all safety training and labeling.
4) Where should general hazard signs appear in a plant?
Decision points such as entrances, process controls, and exit routes are typical locations. Signs remain visible while the hazard exists.
5) Are official pictogram files available for printing?
Yes. Official, scalable artwork is recommended so symbols remain accurate and readable at any size, and BS EN ISO 7010 symbols are applied for facility signage.