Storage Class Calculator (TRGS 510)

Check co-storage compatibility of hazardous substances per TRGS 510. Select two storage classes and get instant results — with interactive compatibility matrix.

Select two storage classes to check co-storage compatibility:

Full compatibility matrix

Click a cell for details.

Permitted With conditions Prohibited
12A2B34.1A4.1B4.24.35.1A5.1B5.26.1A6.1B8A8B10111213
1
2A
2B
3
4.1A
4.1B
4.2
4.3
5.1A
5.1B
5.2
6.1A
6.1B
8A
8B
10
11
12
13

Source: TRGS 510 "Storage of hazardous substances in portable containers", Annex 3. March 2026.

TRGS 510 regulates the safe storage of hazardous substances in portable containers in Germany. Annex 3 contains the co-storage compatibility matrix indicating which storage classes may be stored together.

There are 19 storage classes (LGK), from explosive substances (LGK 1) to non-combustible solids (LGK 13). Our interactive calculator checks compatibility per TRGS 510 Annex 3.

In practice, incorrect co-storage is one of the most common mistakes in hazardous substance storage. This tool instantly checks the compatibility of two storage classes.

Frequently Asked Questions

What are storage classes per TRGS 510?
Storage classes (LGK) are categories for classifying hazardous substances by their storage properties. TRGS 510 defines 19 storage classes and regulates in Annex 3 which classes may be co-stored.
What happens with incorrect co-storage?
Incorrect co-storage can lead to dangerous reactions: fires, explosions, or release of toxic gases. Example: oxidizers (LGK 5.1) next to flammable liquids (LGK 3) can cause an uncontrollable fire.
What storage class does ethanol have?
Ethanol belongs to storage class 3 (flammable liquids) since its flash point is 13 °C. It must not be stored with strong oxidizers (LGK 5.1A).