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Français (FR) STANDARD EN 13 832-2: Requirements for footwear resistant to chemicals under laboratory conditions
This document is not an official reproduction of the standard; refer to the standards issued by AFNOR www.afnor.fr
Standard NF EN 13 832-1 defines the test methods for the footwear.
Chemical-resistant shoes may or may not include a safety toe-cap and consequently meet the requirements of standards EN ISO 20345 or EN ISO 20347
Resistance to degradation: Samples are placed in contact with the chemical for 23 hours.
The tests are performed with at least 2 chemicals chosen from the following table:
| Code | letter | Chemical | CAS-NR | Class |
|---|---|---|---|---|
| 1 | B | Acetone | 78-93-3 | Ketone |
| 2 | D | Dichloromethane | 75-09-2 | Chlorinated hydrocarbon |
| 3 | F | Toluene | 108-88-3 | Aromatic hydrocarbon |
| 4 | G | Diethylamine | 109-89-7 | Amine |
| 5 | H | Tetrahydrofurane | 109-99-9 | Heterocyclic Ether |
| 6 | I | Ethyl acetate | 141-78-6 | Ester |
| 7 | J | n-heptane | 142-85-5 | Saturated hydrocarbon |
| 8 | K | Sodium hydroxide solution 30 % d = 1.33 | 1310-73-2 | Alkaline solution |
| 9 | L | Sulphuric acid 95 % d = 1.84 | 7664-93-9 | Inorganic acid |
| 10 | M | Nitric acid (65 ± 3) % | 7697-37-2 | Inorganic acid |
| 11 | N | Acetic acid (99 ± 1) % | 64-19-7 | Organic acid |
| 12 | O | Ammonia solution (25 ± 1) % | 1336-21-6 | Alkaline solution |
| 13 | P | Hydrogen peroxide (30 ± 1) % V/V | 124-43-6 | Peroxide |
| 14 | Q | Isopropanol | 67-63-0 | Aliphatic alcohol |
| 15 | R | Sodium hypochlorite (13 ± 1) % (active chloride) | 7681-52-9 | Hypochlorite |
After chemical degradation of the samples, the results of the mechanical tests must comply with the following requirements:
| Sole | Upper | |||
|---|---|---|---|---|
| Tests | Tear resistanceENISO20344:2004, 8.2 | HardnessENISO868 | Tear resistanceENISO20344:2004, 8.2 | Elongation at breakEN ISO20344:2004, 6.4 |
| Requirements | Greater or equal to6.4 kN/m | Minimum : 30 shore A Maximum : (value before deterioration + 10) shore A |
Greater or equal to6.4 kN/m | Minimum : 80 % of value before deterioration |
Marking: The following symbols are stamped on the footwear
Example of marking: EN 13832-2 2006 B-M-Q
Means that the toe-cap is resistant to a shock of 200 joules and meets the requirements of standard EN ISO 20345, and that the footwear is resistant to acetone, nitric acid and Isopropanol.