The UNE-EN 420:2010 standard is a reference standard to be used with the specific or applicable standards related to protective gloves. This means that said standard cannot be applied in itself to certify or self-certify protective gloves.
The standard defines the requirements to make and design the gloves, safety, resistance of the materials to water penetration, innocuousness (pH and Chromium VI content), comfort and performance, brand and information supplied by the manufacturer. It is also applicable to gloves and arm protectors permanently joined to hermetic suits..
UNE-EN 420. GENERAL REQUIREMENTS | |||
Hand size | Glove dimensions | ||
Sizes | Circumference mm | Length mm | Minimum glove length |
---|---|---|---|
6 | 152 | 160 | 220 |
7 | 178 | 171 | 230 |
8 | 203 | 182 | 240 |
9 | 229 | 192 | 250 |
10 | 254 | 204 | 260 |
11 | 279 | 215 | 270 |
Each protective glove will be marked with the following information:
The EN 388:2016 standard is applied to all types of protective gloves aimed at protecting against mechanical hazards caused by abrasion, blade cuts, puncture, tear and impact when applicable. They are Category 2 gloves. This standard can also be applied to arm protectors not attached to the glove or the clothing.
UNE-EN 388. MECHANICAL HAZARDS | ||||||
Minimum performance level | 1 | 2 | 3 | 4 | 5 | |
A | Abrasion resistance (cycles) | 100 | 500 | 2000 | 8000 | - |
---|---|---|---|---|---|---|
B | Blade cut resistance (factor) | 1,2 | 2,5 | 5 | 10 | 20 |
C | Tear resistance (newton) | 10 | 25 | 50 | 75 | - |
D | Puncture resistance (newton) | 20 | 60 | 100 | 150 | - |
TRIAL METHODS EN 388:2016
Equipment called the Mantindale Wear and Abrasion Machine is used. The new sandpaper used is Klingspor PL31B Grit 180.
Resistance to abrasion is measured by the number of cycles required to abrade the sample.
Special equipment is used that is mainly made up of a test bench able to support a circular rotary blade.
The blade cut speed goes from 10cm/s to 8cm/s +-2cm/s.
Blade sharpening is carried out in line with the following parameters: the first cut must be between 0,8 and 1,4 cycles (before 1 and 4) and the remaining four cuts between 0,8 and 2 cycles (before 1 and 2).
If at 60 cycles the test sample has not been cut, it is manually stopped to check blade deterioration.
If the glove blunts the blade it will be necessary to carry out the cut test according to ISO 13997 and this value will be the reference to be taken into account. In this case, no value as per the blade cut test will be provided (X will be assigned)..
The force required to tear a rectangular sample that has been cut along half of its length is measured. Traction machines are used and these are equipped with force measuring systems.
The force required to tear a rectangular sample that has been cut along half of its length is measured. Traction machines are used and these are equipped with force measuring systems.
For materials with high cut resistance that blunt the blade, it will be compulsory to carry out a new cut test as per ISO 13997:1999. Samples of at least 25 x 100 mm will be taken. The samples will be set on TDM100 trial equipment sticking the material with a double-sided tape. A strip of conductive material is placed (copper) between the sample and the adhesive. The standardised blade is changed for a new one for each cut. The equipment is activated, the weights are placed and the blade displaces over the sample until it makes the cut. The trial is repeated until obtaining:
Con estos valores se hace una gráfica que determina la fuerza necesaria para cortar el material con un desplazamiento de corte de 20 mm. Se verifica el resultado (Corte a 20 mm) realizando 5 cortes con la fuerza establecida en la gráfica. En caso de que con esta fuerza no se verifique el resultado, se recalcula la fuerza y se realiza 5 cortes más.
Nivel | A | B | C | D | E | F |
6.3 resistencia al corte (N) EN ISO | 2 | 5 | 10 | 15 | 22 | 30 |
When the gloves show specific impact mitigation in accordance with standard EN 13594:2015, it is considered that it complies with said requirement. In this case a P is added to the pictogram.
The ISO EN 374:2016 standard establishes the requirement for gloves aimed at the protection of users against chemical products and/or micro-organisms. This standard does not establish mechanical protection requirements. All of the gloves are category .
They are divided into the following parts
The gloves are divided into three types:
This is the chemical products passing through the material, glove seams, at a non-molecular level.
Air leak trial. The glove is inflated and submerged in water. The appearance of air bubbles in a period of 30’ is monitored.
Water leak trial. The glove is filled with water and the appearance of water-drops is monitored.
If these trials are positive, it will get the pictogram.
Detrimental to some properties of the glove due to contact with a chemical product. E.g.: discoloration, hardening, softening, etc. •Permeation trial EN 16523-1
This is the chemical products passing through on a molecular level. The resistance of the material in one glove to permeation by a chemical product is determined by measuring the time it takes to pass through the material.
LEVELS OF PERMEABILITY RESISTANCE*
Average penetration time | Performance levels |
>10 | Class 1 |
>30 | Class 2 |
>60 | Class 3 |
>120 | Class 4 |
>240 | Class 5 |
>480 | Class 6 |
List of chemical products
CODE LETTER | CHEMICAL PRODUCT | CAS v | CLASs |
A | Methanol | 67-56-1 | Primary alcohol |
B | Acetone | 67-64-1 | Ketone |
C | Acetonitrile | 75-05-8 | Organic compound containing nitrile groups |
D | Dichloromethane | 75-09-2 | Chlorinated paraffin |
E | Carbon disulfide | 75-15-0 | Organic compound containing sulphuru |
F | Toluen | 108-88-3 | Aromatic hydrocarbon |
G | Diethylamine | 109-89-7 | Amine |
H | Tetrahydrofuran | 109-99-9 | Compuesto heterocíclico y éter |
I | Ethyl acetate | 141-78-6 | ester |
J | n-heptano | 142-85-5 | Aromatic hydrocarbon |
K | Sodium hydroxide 40% | 1310-732 | Inorganic base |
L | Sulphuric acid 96% | 7664-93-9 | Inorganic mineral acid |
M | Nitric acid 65% | 7697-37-2 | Inorganic mineral acid, oxidant |
N | Acetic acid 99% | 64-19-7/td> | Organic acid |
O | Ammonium hydroxide 25% | 1332-21-6 | Organic base |
P | Peróxido de hidrógeno 30% | 7722-84-1 | Peroxide |
S | Ácido hidrofluorídico 40% | 7664-39-3 | Inorganic mineral acid |
T | Formaldehído 37% | 50-00-0 | Aldehyde |
UNE-EN 374 1.2 MICRO-ORGANISM HAZARDS |
||
Levels of Penetration resistance (Level of AQL quality) |
||
Traverse level | Acceptable quality | Inspection levels |
---|---|---|
Nivel 3 | <0,65 | G1 |
Nivel 2 | <1,5 | G1 |
Nivel 1 | <4,0 | S4 |
UNE-EN 374 1.2.3 CHEMICAL HAZARDS |
|
Levels of permeability resistance* | |
Average penetration time (min) | Performance levels |
---|---|
>10 | 1 |
>30 | 2 |
>60 | 3 |
>120 | 4 |
>240 | 5 |
>480 | 6 |
* Time the chemical product takes to penetrate the glove |
The UNE-EN 407 standard specifies the trial methods, general requirements and performance levels for thermal protection and markings for protective gloves against heat and/or fire. It has to be used for all the gloves that protect hands against heat and/or flames in one or more of the following ways: fire, contact heat, convective heat, radiant heat, small spatters or large amounts of molten metal.
It is important to warn that the product trials will only determine the performance levels, not the protection levels. If the gloves are designed to support temperatures below 100 °C, these gloves are Category 2. If they support temperatures over 100 °C, they are therefore category 3
UNE-EN 407. THERMAL HAZARDS OF HEAT AND FIRE | ||||||
Performance levels | 1 | 2 | 3 | 4 | ||
A | Flammability | Post inflammation | ≤20" | ≤10" | ≤3" | ≤2" |
---|---|---|---|---|---|---|
Post incandescence | Sin requis. | ≤120" | ≤25" | ≤5" | ||
B | Contact heat | 15 seconds to | 100°C | 250°C | 350°C | 500°C |
C | Convective heat | Heat transmission (HIT) | ≥4" | ≥7" | ≥10" | ≥18" |
D | Radiant heat | Heat transmission (t3) | ≥7" | ≥20" | ≥50" | ≥95" |
E | Small spatters of molten metal | N° of drops needed to obtain a temperature rise to 40°C | ≥10" | ≥15" | ≥25" | ≥35" |
F | Large masses of molten metal | Grams of molten iron needed to cause a superficial burningl | 30 | 60 | 120 | 200 |
Gloves and mitts with insulating material are classified by their class and their special properties, as shown in the following table. All the gloves are in Category 3.
UNE-EN 60903.ELECTRIC HAZARDS | |||
Class | Operating voltage (Kv) | Minimum withstand voltage (Kv) | Test voltage (Kv) |
00 | 0,5 | 5 | 2,5 |
---|---|---|---|
0 | 1 | 10 | 5 |
1 | 7,5 | 20 | 10 |
2 | 17 | 30 | 20 |
3 | 26,5 | 40 | 30 |
4 | 36 | 50 | 40 |
UNE-EN 60903. ELECTRIC HAZARDS | |
Classification by special properties | |
Category | Resistance |
---|---|
A | Acid |
H | Oil |
Z | Ozono |
M | Mechanical |
R | Acid, Oil, Ozone, Mechanical (highest level) |
C | At very low temperatures |
Gloves designed to protect against hazards that may appear due to the use of hand-operated chainsaws. Currently, all the chainsaws have been designed for right-handed people and therefore, all the protective clothing designs and requirements are designed assuming they will be used with the right hand. The protection may not be suitable for use with the left hand. They are category 2 PPE.
There is no personal protective equipment that can ensure 100% protection against cuts from hand-operated chainsaws. However, it is possible to design personal protective equipment that offers a certain degree of protection, applying different functional principles, among which are included:
The UNE-EN 381-7 standard defines two glove designs, A and B, as per the different protective areas they cover:
UNE-EN 381.7. CHAINSAW CUT | |
Chain velocity | |
Class 0* | 16 m/s |
---|---|
Class 1 | 20 m/s |
Class 2 | 24 m/s |
Class 3 | 28 m/s |
UNE-EN 381.7. CHAINSAW CUT | |
Minimum protection levels against mechanical hazards (UNE-EN 388) | |
---|---|
Abrasion | 2 |
Blade cut | 1 |
Tear | 2 |
Puncture | 2 |
The UNE-EN 511 standard defines the requirements and trial methods for gloves that protect against convective or conductive cold to a temperature of -50 °C. This cold may be linked to climatic conditions or an industrial activity. The specific values for the different performance levels are determined in accordance with the demands of each risk or special area of application.
WARNING: The trials that are carried out on the products are to determine performance levels and not to determine protection levels. They are category 2 PPE. There are gloves in Category 3, but they are not covered by this standard.
This type of glove must comply with at least level 1 of the resistance to abrasion and tear resistance as per the UNE-EN 388 standard..
UNE-EN 511. HAZARDS DUE TO THE COLD | ||||||
Performance levels | 1 | 2 | 3 | 4 | ||
A | Resistance to cold convective | Thermal Insulation (ITR) in m2 °C/W | ≥0,10 | ≥0,15 | ≥0,22 | ≥0,30 |
---|---|---|---|---|---|---|
B | Resistance to contact cold | Thermal resistance (R) in m2 °C/W | ≥0,025 | ≥0,050 | ≥0,100 | ≥0,150 |
C | Impermeability to water | Level 1: impermeable at least 30 minutes |
The special gloves for fire-fighters allow them to work for long periods of time under dangerous conditions. However, it is not possible to relate the performance levels reached in the laboratory to the protection levels required under real use conditions.
These gloves are not meant for the deliberate handling of chemical liquids but they do provide some protection against accidental contact with chemical products.
Protective gloves for special operations in fire-fighting are excluded from the applicable scope of the UNE-EN 659 Standard.
Protective gloves for fire-fighters are Category 3 PPE.
UNE-EN 659.GLOVES FOR FIRE-FIGHTERS | |
Minimum glove length (UNE-EN 388) | |
Size | Minimum length (cm) |
---|---|
6 | 26 |
7 | 27 |
8 | 28 |
9 | 29 |
10 | 30,5 |
11 | 31,5 |
UNE-EN 659. GUANTES PARA BOMBEROS | |||
Protection levels | |||
UNE-EN 388 | UNE-EN 407 | ||
---|---|---|---|
Abrasion | 3 | Flame | 4 |
Cut | 2 | Convective heat | 3 |
Tear | 3 | Contact heat | * |
Puncture | 3 | Radiant heat | ** |
* Contact temperature 250 °C. Threshold temperature of at least 10 s
** In accordance with the EN ISO 6942 standard
Electrostatic garments are designed, on one hand, to protect the user and, on the other, with the function of protecting the products. The human body is a producer of micro-particles that can damage products with a high added value and, at the same time, it is a conductor, which means it has low resistivity, through conduction or induction, if it is earth insulated. This can cause sparks and direct injury to workers.
None of these standards is applicable against electrical voltages. These garments are Category 2.
Gloves with metallic meshing and plastic or metallic arm protectors that offer some type of protection against punctures, are used in those types of tasks in which the blade moves towards the hand and arm of the user, especially when working with manual knives in butchers, in the meat, fish or seafood processing industries, in large restaurant establishments and in meat, game or poultry deboning operations.
They can also give suitable protection to those who work with manual knives in the plastic, leather, textile and paper industries when laying floors or similar tasks. They are PPE category 2
Protective gloves for welders protect the hands and the wrists during the welding process and related tasks.
Protective gloves for welders protect against small drops of molten metal, short-term exposure to a limited flame, convective heat, contact heat and UV radiation emitted by the arc. Moreover, they often protect against mechanical aggressions
They are category 2 gloves.
Gloves for motorcyclists are designed to provide protection against environmental conditions, without reducing the user’s ability to manage the motorbike’s controls and switches. Moreover, the gloves are also designed to provide mechanical protection for the hands and wrists in the case of accidents.
The most frequent risks in motorbike accidents are collisions with the motorbike, with other vehicles, with urban furniture and with the road surface.
They are category 2 gloves.
This European standard has been developed in response to the growing demand to protect people from the risks of injury due to vibrations caused by exposure to hand-arm vibrations.
This European standard specifies a laboratory measuring method, data analysis and a report on the transmissibility of the vibration through the glove in terms of the transmission of the vibration from the handle to the palm of the hand within the frequency range of 31,5 Hz to 1.250 Hz. The measurement does not include the vibration transmitted to the fingers
They are category 2 gloves
Protective clothing. Mechanical properties. Determination of resistance to cuts by sharp objects.
This international standard specifies a cut trial method and the associated calculations, which are used with the materials that the protective clothing is made of. The trial determines the resistance to cutting by sharp objects like blades, knives, edges of sheet metal, burrs, glass, tools and sharpened smelting. This trial does not provide information about the resistance to penetration by pointed objects like needles or pointed ends. This trial is not considered to be suitable for materials manufactured with meshing or metal plates. The text of this international standard makes no reference to user safety.
Although the textiles, compound materials, leathers, rubbers and reinforced materials can withstand cuts by sharp objects of varying types, it is necessary to have an evaluation method of cut resistances for the materials that protective clothing is made of that is applicable to all materials. The trial described in this standard establishes a method that allows us to calculate the force downwards (perpendicular) required so that a blade that is displaced along the sample at a set distance, cuts the same. The performances of the protective clothing materials can be classified depending on the numeric values obtained in this trial.
REQUIREMENTS
This international standard describes the trial method for materials and products. When stated as a trial method in a standard for products or materials, the latter must contain all the information required to allow the application of the ISO 13997 standard to the product in question. The standard that the ISO 13997Standard refers to must contain, at least, the following information:
a) a normative reference to the ISO 13997 Standard
b) a description of the samples to be tested, the procedure for their preparation and, if necessary, the pre-treatment, as well as the size and orientation of the test pieces obtained from the samples
c) details about the setting and stretching procedure for the test pieces
d) number of trials to be carried out
e) detail about any deviation regarding the method described in the ISO 13997 Standard
f) details about the model and content of the trial report
g) the performance requirements for the product and the associated “level”. The required performances must be given as the minimum cut force
TRIAL METHOD
Method principle
The cut resistance of a material corresponds to its aptitude to withstand the cut produced by a blade. This is measured by an apparatus in which a blade is displaced through the test piece. The cuts made by the displacements, between 3 mm and 50 mm, of a blade to which a determined range of forces is applied, perpendicular to the surface of the test piece. The cut resistance of a sample of the material is expressed as the cut force required so that a standardised blade cuts the material precisely in a 20mm run. The cut force value can be used to classify the materials. Any type of apparatus can be used as long as it is capable of keeping a steady force between the cutting edge of the blade and the test piece and allows us to exactly measure the distance covered by the blade before it cuts through the test pieces. In annex B (informative) equipment is described that complies with these conditions.
ANNEX A (Informative)
SPECIFICATIONS FOR CUT TRIAL
Introduction
The method specified in this international standard can be used to test a large number of materials used in the production of personal protective equipment. The trial evaluates the resistance of the test piece to being cut by a blade that displaces over it at a constant force. The results of the trial are expressed as the force required that should be applied to the blade to cut the test piece with a displacement of 20 mm. The greater the force required, the greater the cut resistance.
The following table gives some typical results:
UNE-EN ISO 13997. Resultado de ensayo típicos | |||
Material | Masa superficial (g/m2) | Fuerza de corte (N) | Aplicación típica |
---|---|---|---|
Algodón | 545 | 5,9 | Work gloves |
Latex | 469 | 1,0 | Surgical gloves |
p-Aramida | 688 | 11 | Industrial gloves |
Cuero | 754 | 2,3 | Work gloves |
PEHPM* reforzado | 581 | 20,8 | Gloves for the agri-food sectors |
PEHPM* reforzado | 853 | 31,9 | Gloves for the agri-food sectors |
Vinilo | 590 | 3,5 | Protective clothing (liquids) |
p-Aramida | 1900 | 38,7 | Multi-layer protective apron |
* HMW-PE: High molecular weight polyethylene |
Protective clothing
The EN ISO 13688:2013 standard describes general requirements applicable to protective clothing, such as ergonomics, designation of sizes, markings and information provided by the manufacturers. This standard is used in combination with other standards with specific protection contents. This standard replaces UNE-EN 340.
BODY DIMENSIONS FOR THE SIZE OF THE PROTECTIVE CLOTHING | ||
Nº | PROTECTIVE CLOTHING | CONTROL DIMENSIONS |
---|---|---|
1 | Jacket, coat, waistcoat | Contour of the chest or bust and height |
2 | Trousers | Contour of the waist and height |
3 | Trousers | Contour of the chest or bust and height |
4 | Mandiles | Contour of the chest or bust, contour of the waist and height |
5 | Protective gear (e.g.: kneepads, back protectors, torso protectors)) | Select the relative sizes
|
Protective clothing for welding and similar processes.
The UNE-EN 11611:2015 standard establishes minimum requirements and trial methods for protective clothing, including hoods, aprons, sleeves and gaiters, designed to protect the user during welding and similar processes
CRITERIOS DE SELECCIÓN | ||
TYPE OF CLOTHING | PROJECT | ENVIRONMENTAL CONDITIONS |
---|---|---|
Class 1 | Welding techniques and less dangerous situations causing lower levels of spatter and radiant heat | Operating oxygen and plasma cutting machines, resistance welding, thermal spraying and welding bench |
Class 2 | Welding techniques and more dangerous situations causing greater levels of spatter and radiant heat | Operating machines in confined spaces. In Operating machines in confined spaces. In |
Protective clothing. Outfits and protective clothing against the cold.
Protective clothing. Outfits and protective clothing against the cold.
Does not include head coverings, footwear and protective gloves.
Defines the outfits and protective clothing to be used in really cold environments with temperatures below – 5 Cº.
UNE-EN 342 | |||
---|---|---|---|
Thermal Resistance R | Not required | ||
Effective Thermal Insulation I | Obligatory | ||
Resulting Thermal Insulation I | Obligatory Minimum value 0,310 m2 K/W |
||
Air Permeability, AP | Obligatory (class 1,2,3) |
||
Water Penetration, WP | Optional (class 1,2) |
||
Water Vapour Permeability, R | Optional (class 1,2) |
Related to Personal Protective Equipment.
Substitutes Directive 89/686/CEE.
The new regulation involves greater specifications about the requirements applicable to PPE, the responsibilities of all the economic operators and progress in the market monitoring conditions.
It will come into force on the 21st of April 2018.
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