EN 420 GENERAL REQUIREMENTS FOR PROTECTIVE GLOVES
- appropriate pH value (3,5< ph >9,5)
- Dexterity (5 levels of performance)
- water permeability (5 levels of performance)
- impermeability (for leather gloves 30-180 min)
- free form substances harmful for the health (chromium<10 mg/kg)
- Compulsory markings
- appropriate sizing*
*The standard specifies only the minimal lenght of the gloves.The actual size of the gloves is defined by the producer considering the behaviour of the material of the gloves and the predictable application
EN 388 MECHANICAL REQUIREMENTS
EN 388 standard refers to all types of gloves regarding phisical and mechanical agressions such as abrasion,cut,puncture and tear. This standard can be used together only with EN 420 standard (performance levels: 1-5 and A-F. Not tested performance levels are maked with:X)
| Testing | 1. level | 2. level | 3. level | 4. level | 5. level | |
| A | Abrasion (number of cycles) | 100 | 500 | 2000 | 8000 | – |
| B | Resistance to cuts (index numbers) | 1,2 | 2,5 | 5 | 10 | 20 |
| C | Tear strenght resistance (N) | 10 | 25 | 50 | 75 | – |
| D | Puncture resistance (N) | 20 | 60 | 100 | 150 | – |
| Test | A | B | C | D | E | F | |
| E | TDM – Blade cut resistance (N) | ≥2 | ≥5 | ≥10 | ≥15 | ≥22 | ≥30 |
Requirements
Abrasion resistance: Number of cycles after the material is damaged Performance levels 1-4.
B Abrasion resistance: Number of cycles with even speed after the material is damaged. Performance levels: 1-5
C Tear strenght: Maximum strenght under the material breaks away.
D Puncture resistance: Strenght needed for puncutre by a unified tool. Performance levels 1-4.
E (TDM cut test): Measures the average weight when reaches the moment of the cut. Performance levels A-F
EN 407 PROTECTION AGAINST THERMAL RISKS
This standard regulates the testing methods,the general requirements, the protection levels against heat and their marking. The pictogramme is completed by 6 digits.
| Types of thermal protection | Performance levels: | 1 | 3 | 3 | 4 | |
| A | Burning behaviour (after 15 sec burning beside the soundness of the seams) | Afterburning period After ignition period |
≤ 20 s – |
≤ 20 s ≤ 120 s |
≤ 3 s ≤ 25 s |
≤ 2 s ≤ 5 s |
| B | Contact heat (by how many degrees raises the inner surface temperature by 10 C) | Convective heat Treshold time |
≤ 100°C >15 s |
≤ 250°C >15 s |
≤ 350°C >15 s |
≤ 500°C >15 s |
| C | Convective heat (in how many sec the inner heat raises by 24 C) | Heat transfer index HTI (t3) | ≥ 4 s | ≥ 7 s | ≥ 10 s | ≥ 18 s |
| D | Radiant heat (20 kW/m² heatflux density until indicated time) | Heat transfer index HTI (t3) | ≥ 5 s | ≥ 30 s | ≥ 90 s | ≥ 150 s |
| E | Small splashes of molten metal (how many splashes genarate temperature raise of 40 C) | Number of splashes (0,5 g/db) | ≥5 | >15 | >25 | >35 |
| F | Large quantities of molten metal (the quantity of molten metal not causing changes on the surface of the gloves) | Quantity of splashes (g) | >30 | >60 | >120 | >200 |
EN 374 Protection against chemicals
During the examination of resistance of the penatration of chemicals the test veryfies that at least 3 chemicals from the chosen chart does not penetrate for minimum 30 minutes on molecular level does not diffund on the material of the protective gloves.(ISO 374-1:2016/Type B). Novelty in the standard is that further 6 chemicals can be tested on the gloves (ISO 374-1:2016/Type A).
| Marking | Chemical | Class |
| A | Metanol | Alcohol |
| B | Aceton | Keton |
| C | Acetonitril | Nitril |
| D | Dicholre-methan | Paraffin saturated by chlorine |
| E | Carbon dissulfid | Sulphure+organic component |
| F | Toluol | Aromatic carbon hydrogen |
| G | Dietilamin | Amin |
| H | Tetrahidrofuran | Heterocyclic ether |
| I | Ethyl acetate | Esther |
| J | n-Hephtan | Saturated carbohydrogen |
| K | Natron 40% | Inorganic base |
| L | Sulfuric acid 96% | Inorganic acid |
| M | M 65% nitric acid | Inorganic mineral acid, oxidant |
| N | 99% acetic acid | Organic acid |
| O | Ammonium-hydroxid 25% | Organic acid |
| P | 30% Hydrogen-peroxid | Peroxid |
| S | 40% Hydrogen-fluorid acid | Inorganic acid, contact poison |
| T | 37% formaldehyde | Aldehid |
EN 374-5:2016 PROTECTION AGAINST MICROORGANISMS
Microorganisms are classified as bacteria,viruses or fungus. Protective gloves against viruses must meet the standard ISO 16604:2004 too.
