BS EN 511-2006 pdf download.Protective gloves against cold.
This BS EN 511 specifies the requirements and test methods for gloves which protect against convective and conductive cold down to —50 °C. This cold can be linked to the climatic conditions or an industrial activity. The specific values of the different performance levels are decided by the special requirements for each class of risk or the special areas of application. Product tests may only give performance levels and not levels of protection.
2 Normative references
The following referenced documents are indispensable for the application of this European Standard. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
EN 388, Protective gloves against mechanical risks
EN 420, Protective gloves — General requirements and test methods
EN ISO 7854:1997, Rubber- or plastics-coated fabrics — Determination of resistance to damage by flexing (ISO 7854:1995)
ISO 4675, Rubber- or plastics-coated fabrics — Low- temperature bend test
ISO 5085-1, Textiles — Determination of thermal resistance — Part 1: Low thermal resistance
ISO 7000, Graphical symbols for use on equipment — Index and synopsis
ISO 15383, Protective gloves for firefighters — Laboratory test methods and performance requirements
3 General requirements
These gloves shall meet all the applicable requirements of EN 420.
4 Performance requirements
4.1 Mechanical requirements
The gloves shall at least comply with performance level 1 of EN 388 in abrasion and tear resistance. This
minimum requirement can be different according to the levels of protection against cold (see 4.5 and 4.6).
4.2 Flexibility behaviour
When tested in accordance with 5.2 there shall not be any cracks. This test is not necessary for uncoated materials.
4.3 Water penetration
The gloves shall be tested according to 5.3.
A level of performance of 1 shall be indicated when no leakage is seen at the end of the testing period. If this requirement is not passed, then a performance level of 0 shall be indicated, and a warning slating that the glove may lose its insulative properties when wet shall be added in the information supplied by the manufacturer (see Clause 7).
4.4 Extreme cold flexibility test
When tested in accordance with 5.4 no crack shall appear at the fold. This test shall be performed on gloves
designed to protect at temperatures below —30 C.
4.5 ConvectIve cold
When tested m accordance with 5.5, the thermal Insulation properties of the glove shall comply with the values given in Table 1.
The test shall be peferably carried out in this atmosphere. If the test is carried out under different climatic conditions then It should be started within 3 mEn of the time the samples were removed from the standard atmosphere.
For protective gloves with a multi-layer construction the test shall be carried out on all layers simultaneously. even if these, when removed, are not connected to one another (see 5.5).
5.2 Flexibility behaviour
The test shall be carried out in accordance with Method A of EN ISO 7854:1997 at a test temperature of (- 20 ± 2) °C or an alternative temperature as specified by the glove’s manufacturer.
— The number of cycles shall be 10 000.
— From each palm of a pair of protective gloves two samples shall be taken (four samples in total).
— If the direction of manufacture of the material is recognizable then one sample shall be so taken that the longitudinal axis lies in the direction of the manufacture and one in the direction at right angles to it.
— If the direction of manufacture is not given and one cannot be established then the two samples are taken in two directions at right angles to one another.
— The samples are taken without seams. If this is not possible then the sample is taken in such a way that the seams lie, during the test, in the area of the clip and do not influence the bending.
5.3 Water penetration
The test shall be camed out according to the whole glove integrity test descnbed in ISO 15383. with complete
immersion of the glove up to the wrist line only.
5.4 Extreme cold flexibility
The test shall be carried out in accordance with ISO 4675 with a test temperature of (-50±2) ‘C.
— From each palm and back of a pair of gloves a sample will be taken (four samples in total).
— If the direction of manufacture of the material is recognizable then one sample shall be taken so that the longitudinal axis lies in the direction of manufacture and one in the direction at right angles to it.
— If the direction of manufacture is not given and one cannot be established then the two samples are taken in two directions at right angles to one another.BS EN 511-2006 pdf download.