All protective gloves must comply with EN 420 – General requirements on gloves. There are exceptions only for electric protection gloves and disposable gloves (medical disposable gloves). EN 420 specifies the minimal requirements on gloves. Each glove must have information for users attached, including instructions for storage, transport, cleaning, use and disposal. The above stated basic standard specifies recommended values for chromium VI (max. 10 mg/kg) and the pH value (between 3,5 and 9,5). EN 420 further assumes the finger mobility test (min. 0, max. 5) for protective glove.
To satisfy different requirements of industrial areas, the protective gloves are divided into 3 groups:
|Category I||minimal risks
Low requirements on protection
|Category II||medium risks
E.g. protection against mechanical hazards
|Category III||high risks
Protection against irreversible damage and danger of life, e.g. due to damage by chemicals, heat, cold, radiation, current
Based on the above stated classification, a special standard including the respective glove marking and documentation follows. The protective gloves for industry are usually classified minimally in category II.
The categories are based, among other things, also on regulations for approval of and documentation to products. The regulation for PSA manufacturers 89/686/EEC includes basic requirements and classifications in individual categories.
|Category I||Declaration of Conformity|
|Category II||Declaration of conformity +
one-off certificate for prototype homologation
|category III||Alt. A||Declaration of conformity +
one-off certificate for prototype homologation
|Alt. B||Declaration of conformity
+ yearly certificate of prototype homologation
+ ISO 900ff
The manufacturer of protective gloves must submit the relevant documentation at request.DG Tachov, thanks to its philosophy of provision of quality, meets even the strictest requirements of its customers, as it has chosen the most difficult path. The DG Tachov products are approved through prototype homologation. Another plus in assurance of safety, which should not be waived by the glove user.
TABLE - GLOVE MARKING EN 388
– Gloves giving protection from mechanical risks
For category II, the pictogram marking the individual tests must be situated
- on the protective glove
- on the instructions for use
- on the package
Only if the above stated conditions are met, you can be sure to own a protective glove complying with category II or higher. The sequence of performance levels must be observed and the digits must be stated on the glove next to the pictogram of the special standard.
Level X means that the test is not practicable for the glove in question.
EN 374 – Gloves giving protection from chemicals and micro-organisms
Since 2004, the new wording of EN 374 applies. According to it, the chemical protective gloves are divided into full and simple chemical protective gloves. Also the list of 12 test chemicals is new. The full chemical protective glove must show permeation level 2 for 3 test chemicals at the minimum. Therefore, many protective gloves cannot be considered full chemical protective gloves any more, based on their composition and layer thickness. In case of nitrile disposable gloves, the standard layer thickness of 0,1 mm is not sufficient any more either.
The chemical protective glove protects against bacteria and moulds, if it shows at least the penetration level II.
The chemical protective glove declared as simple chemical protection can protect fully against the defined hazardous substances, but the manufacturer's statement of its chemical resistance is required.
Definition of concepts for EN 374
Permeability - it is the molecular breakthrough of the glove. At molecular level, it is defined in minutes
Level 1 ≥ 10 min
Level 2 ≥ 30 min
Level 3 ≥ 60 min
Level 4 ≥ 120 min
Level 5 ≥ 240 min
Level 6 ≥ 480 min
To determine the exact time of wearing of chemical-resistant protective glove, the test according to standard is not sufficient. The resistance period is substantially influenced by factors like temperature and stretching. For safety reasons, DG Tachov, therefore, recommends to consider 25% of the declared resistance.
- it is the microscopic permeability of the protective glove; that means that the chemical resistant glove has a hole or crack.
DG Tachov carries out the penetration tests of airtightness and water resistance according to EN 374; they are mandatory for chemical-resistant protective gloves. While the tricot chemical-resistant protective gloves pass the airtightness test, the water resistance test often reveals that the gloves are not tight.
- swelling may occur independently of permeation and penetration. The swollen protective glove is of course unusable; therefore, only protective gloves with minimal swelling should be used. Swelling takes place according to the chemical in contact with the glove.
DG Tachov takes its leading role in the market seriously, and although EN 374 does not prescribe it, it has assumed swelling as another measuring method and recommends only protective gloves with swelling under 15%.
EN 407 – Gloves giving protection from thermal hazards
The standard defines the thermal properties of gloves intended for protection against heat or flames. At the same time, it prescribes at least levels 1 for resistance to abrasion and tear resistance according to EN 388 for heat risk protective gloves.
The protective gloves according to EN 407 should be difficultly flammable. The material of the protective gloves can lead heat only very slowly, to ensure protective effect against radiant, convective and contact heat. Additionally, it must show high thermal resistance (not melt down, not shrink, and not disintegrate under high temperature strain). EN 407 does not apply to specific applications of high temperature protective gloves (e.g. at fire fighting or welding).
EN 407 informs of the behaviour of the protective glove at heat or flames in form of six levels:
A – Resistance to flammability– this level informs of the time for which the material keeps burning or glowing after the flame has been removed from the test body. The seams of the protective glove must not release after a burning time of 15 seconds.
B – Resistance to contact heat– contact heat is the most frequently used level in this standard. It is understood as the limit value of time in seconds at specified contact value (100, 250, 350 and 500°C); the increase must not be higher than 10°C per 15 seconds
As the contact time or exact material temperature is not known in practice, higher level of contact heat should always be considered. The heat sensitivity is very individual; therefore, the persons who will wear the gloves must test which ones suit them best.
C – Resistance to convective heat– this level informs of the time by which the protective glove is able to delay the transfer of heat from the flame. The performance level is stated only in case level 3 or 4 is achieved in the area of behaviour at burning.
D – Resistance to radiant heat– this level states the time by which the protective glove is able to delay the transfer of heat from a radiant heat source. The performance level is stated only in case level 3 or 4 is achieved in the area of behaviour at burning.
E – Resistance to small splashes of molten metal– this level informs of the number of splashes of molten metal needed to heat the protective glove up to a specific temperature. The performance level is stated only in case level 3 or 4 is achieved in the area of behaviour at burning.
F – Resistance to large splashes of molten metal– this level informs of the amount of molten metal that would be needed to disrupt the PVC foil (simulating the human skin) stretched behind the sample protective glove. The test is performed with molten iron; if needed, it must be performed with other metal.
Food production and processing
If protective gloves are used at food production and processing, specific regulations must be observed. The 1935/2004/EEC standard applies at European level. The standard defines general requirements and applies also to PPE. The protective gloves pass an additional test and must not transfer any of its constituents to the food. If the protective glove meets the requirements, the adequate pictogram is situated on the package. The use of the pictogram is allowed according to 1935/2004/EEC, or alternatively, according to a national standard (e.g. RAL mark).
According to the directive, it is sufficient that the protective glove seller submits the supplier's statement. DG Tachov has its protective gloves tested by an independent certified institute with regard to food compatibility by performing an actual test. The test examines whether no constituents get released due to effects of oil, alcohol or liquid substances.