test nalta

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

letterChemicalCAS-NRClass
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: 

  SoleUpper
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.