Hazard pictograms explained simply

GHS hazard pictograms show at a glance which risks a product may pose. Here you will find a clear overview of all symbols, including typical meaning and practical everyday tips.

Basics Overview All symbols Practical tips FAQ

Basics

What does GHS mean

GHS stands for the “Globally Harmonized System of Classification and Labelling of Chemicals”. It ensures internationally consistent hazard symbols so risks can be recognised more quickly.

Good to know

A pictogram shows the type of hazard, not automatically the “severity”.
A product can carry multiple pictograms.
Dosage, contact time and use always matter.

Tip

For everyday use it usually helps to: recognise the pictogram, read the label instructions, and follow protective measures. Problems often arise from incorrect use or mixing cleaners.

Overview

How to read labels correctly

What a label typically includes

Pictograms (hazard symbols)
Signal word (e.g. Danger or Warning)
Hazard statements (H-statements)
Precautionary statements (P-statements)

H and P statements are standardised text elements. They help you assess risks correctly.

Rule of thumb

The pictogram shows what the hazard is. The label text shows how to handle it safely.

GHS symbols

All hazard pictograms at a glance

GHS01 – Explosive

May explode due to heat, impact, friction or sparks.

rare in households
Practice: store away from sources of ignition.

GHS02 – Highly flammable

Easily flammable gases, aerosols or liquids (e.g. alcohol-based products).

avoid ignition sources
Practice: do not use near heat or open flames.

GHS03 – Oxidising

May intensify fire; oxidising substances.

store with care
Practice: do not store together with flammable materials.

GHS04 – Gas under pressure

Gas cylinders; liquefied or refrigerated liquefied gases.

avoid heat
Practice: do not damage containers; protect from sunlight.

GHS05 – Corrosive

May cause severe skin burns and eye damage and may corrode metals.

protection required
Practice: wear gloves and eye protection; avoid splashes.

GHS06 – Highly toxic

Even small amounts can cause severe health damage.

very rare
Practice: follow label strictly; store child-safe.

GHS07 – Warning

May cause irritation or allergic reactions (skin, eyes, respiratory tract).

avoid contact
Practice: ventilate well; do not inhale; avoid skin contact.

GHS08 – Health hazard

May cause long-term health effects (organs, respiratory system, etc.).

pay special attention
Practice: avoid exposure; follow instructions carefully.

GHS09 – Hazardous to the aquatic environment

Harmful to aquatic life, acutely or long-term.

protect the environment
Practice: keep out of waterways; dispose of properly.

Note

The symbols provide quick orientation. For safe use, the signal word, H and P statements, and the dosage are decisive.

Practical tips

How to avoid common mistakes

Step by step

Read the label and follow the dosage.
Never mix cleaners (especially chlorine, acids, alkalis).
Use protection if recommended (gloves, eye protection).
Ventilate well; do not inhale spray mist.
Store correctly: child-safe, closed, cool, dry.

Tip

A correctly used product is usually safe. Problems often result from too high concentration, too long contact time, or incorrect combinations.

FAQ

Frequently asked questions

Does a symbol automatically mean dangerous

No. The symbol indicates which risks may exist in principle. With correct dosage and use, the product is usually safe. The label instructions are key.

Why does a product have several symbols

Because a product can have multiple risks, for example irritant and environmentally hazardous at the same time. Therefore, always follow all instructions.

Advice

If you are unsure which product is suitable for your application or how to use it safely, we will be happy to advise you.

Request advice View cleaners in the shop