All data without guarantee.

Source: Committee for workplaces – ASTA management – BAuA –

Federal Institute for Occupational Safety and Health (BAuA)
Friedrich-Henkel-Weg 1-25
D-44149 Dortmund
PO Box 17 02 02
D-44061 Dortmund
Phone: +49 (0) 231 9071-0
Fax: +49 (0) 231 9071-2454

Stand: June 2019

1. chemical resistance, DIN EN ISO 10545-13

Resistance to household
chemicals and bath water additives
-Household Chemicals
Ammonium chloride solution 100g/l
– Swimming pool salts
Sodium hypochlorite solution 20g/l

unglazed: UA/UB/UC*
glazed: GA/GB/GC*

Resistance to acids and alkalis
– Low concentration (L)
a) Hydrochloric acid solution 3%
b) Citric acid solution 100g/l
c) Potassium hydroxide solution 30g/l
– High concentration (h)
a) Hydrochloric acid solution 18%
b) Lactic acid solution 5%
c) Potassium hydroxide solution 100g/l

unglazed: ULA/ULB/ULC or UHA/UHB/UHC*.

Acid protection and apparatus engineering
The resistance for acid protection DIN EN 993-16 or chemical apparatus construction DIN 28062 is reserved for individual tests.

2. stain resistance, DIN EN ISO 10545-14

Stain remover
– Trace stain formers
Green stain oil
Red stain oil
– Stain remover chemical
Iodine, 13g/l in alcohol
– Film-forming stain formers
Olive oil
Cleaning (as part of the test)
– Detergent
Hot water (+55 °C)
Weak detergent
Strong detergent
– Solvent
Hydrochloric acid solution 3%
Potassium hydroxide 200g/l

3. lead and cadmium discharge

The glazed surfaces are subjected to a vinegar
acid solution. The amount of lead and cadmium released is then determined.
Cl. 5 / Cl. 4 / Cl. 3 / Cl. 2 / Cl. 1**

* Class A has the highest chemical resistance. consistency, which decreases more and more after C.

** Class 5 has the highest stain resistance, which decreases more and more after 1. The glazed surfaces are exposed to an acetic acid solution. Subsequently
the quantity of the delivered
lead and cadmium.

The information and quotations from product and test standards published here are to be regarded only as non-binding information. The most current versions of the respective sources apply.

1. friction coefficient/ slip resistance/ slip resistance

The Workplace Ordinance and accident prevention regulations require that floors be level, slip-resistant and easy to clean. Special protective measures against slipping are required if there is a risk of slipping due to handling water, oil, mud, grease or waste. This must be taken into account when selecting the surfacing materials. This clear requirement is based on research conducted by insurance carriers, which showed that among all causes of accidents, slipping is in first place.

1.1. Commercial areas

Federation of Institutions for Statutory Accident Insurance and Prevention, Central Office for Accident Prevention and Occupational Medicine, Alte Heerstraße
111, 53754 St. Augustin, Germany, Technical Committee „Building Facilities“.

Test standard: DIN 51130
DIN 51130:2014-02 Testing of floor coverings, determination of slip resistance, workrooms and work areas with slip hazards, walking method, inclined plane

BGR/GUV-R 181 „Floors in workrooms and work areas with slip hazards“ of the „Structural Facilities and Trade“ section of the „Trade and Logistics“ division of the German Social Accident Insurance (DGUV).

Test method: Inclined plane, walking with safety shoes, sliding medium oil. The surface design can be flat, fine-rough, rough or profiled.

Displacement space
The displacement space (V4-V10) is the open cavity between the lifting plane and the drainage plane for profiled surfaces.

Inclination angle
The specified angles of inclination are used exclusively for assigning the evaluation groups and are not to be equated with the angles of inclination of slopes/ramps.

Required evaluation groups
in the work area

Evaluation groups
The required evaluation groups are compiled in a detailed table of working areas at risk of slipping (see next page).

Legal basis
The workplace ordinance as well as the accident prevention regulations require that floors must be level, slip-resistant and easy to clean. The result of these requirements is the leaflet BGR 181 – Code of practice for floors in workrooms and work areas with slip hazards.


wdt_ID Arbeitsräume, -bereiche und betriebliche Verkehrswege Bewertungsgruppe der Rutschgefahr (R-Gruppe) Verdrängungsraum mit Kennzahl für das Mindestvolumen
1 Allgemeine Arbeitsräume und - bereiche*)
2 Eingangsbereiche, innen**) R9
3 R11 oder R10 V 4
4 Treppen, innen***) R9
5 Außentreppen R11 oder R10 V 4
6 Schrägrampen, innen***) (z. B. Rollstuhl- rampen, Ausgleichsschrägen, Trans- portwege) Eine R-Gruppe höher als für den Zugangsbelag er-forderlich V-Wert des Zugangsbelags, falls zutreffend
7 Sanitärräume
8 Toiletten R9
9 Umkleide- und Waschräume R10
10 Pausenräume (z.B. Aufenthaltsraum, Betriebskantinen) R9

*) for floors in wet areas walked on barefoot, see GUV information „Floor coverings for wet barefoot areas“ (GUV-I 5827)
**) Entrance areas as defined in point 0.1 are those areas which are entered directly from the outside through entrances and into which moisture can enter from the outside (see also point 6, paragraph 3, use of dirt and moisture collectors). For adjoining areas or other large-area rooms, point 4 para. 10 to note.
***) Stairs, ramps according to number 0.3 and 0.5 are those on which moisture can be carried in from the outside. For subsequent areas, point 4 para. 10 to note.

****) If a uniform floor covering has been laid everywhere, the displacement space can be reduced to V 4 on the basis of a risk assessment (taking into account the cleaning procedure, work processes and the incidence of substances that promote slipping on the floor).