BS EN 15090:2012 pdf download
BS EN 15090:2012 pdf download.Footwear for firefighters.
7.5 Zipper
7.5.1 Puller attachment strength
7.5.1.1 Principle
The puller is subjected to tension whilst the slider is rigidly supported.
7,5.1.2 Apparatus
7.5.1.2.1 Tensile machine wtiich produces a oonstant rate of jaw separation of (100 ± 20) mm/mm and a
plate to mask the slider so that tension Is confined to the puler and its attachment to the slider.
7.5.1.3 Procedure
Mount the ajider In the lower jaw of the tensile with the puller passed through the masking plate. Clearing the end of the puller in the upper jaw of the tester so that tension s applied perpendicular to the slider, set the testing machine In use until failure occurs. Record the maximum force to cause failure. Three specimens shall be tested and the results recorded.
7.5.2 Lateral strength
7.5.2.1 PrincIple
The zipper is subjected to a lateral force to measure the resistance of the closed zip to operwng. The force
required to cause failure of the zipper measured.
7.5.2.2 Apparatus
7.5.2.2.1 Tensile machine with a jaw separation rate of (100 ± 20) mm/mm having a facility to record the force throughout the test and gripping jaws of 25 mm wide, constructed and finished so as no to damage the tape of the zipper.
7.5.2.3 Test specimens
Three test pieces from one or more zippers so that the minimum length of closed chain for each test is 75 mm,
7.5.2.4 Procedure
Clamp the test specimen in the jaws of the testing machine so that there is at least 25 mm of closed chain either side of the jaws. The jaws shall be posItioned 3 mm fran, the chain. Figure 3 shows the arrangement Set the machine ii operation and measure the force to Induce failure. Three test pieces shall be tested and the results recorded.
c) explanation of any pictograms, markings and levels of performance, A basic explanation of the tests that have been applied to the footwear, it applicable;
d) instructions for use:
1) checks to be carned out by the wearer before use, if required:
2) fitting: how to put on and take ofl the footwear, if relevant;
3) application: basic information on possible uses and, where detailed information is available, the source;
4) hmitations of use (e.g. temperature range, e4c.);
5) iostructions for storage and maintenance, with maximum penods between maintenance checks (if important. &ying procedures to be stated);
6) instructions for cleaning andlor decontamination; obsolescence deadline or period of obsolescence:
7) if appropnate, warnings against problems likely to be encountered (modifications can invalidate the type approval. e.g. orthopaedlc footwear);
8) if helpful, additional illustrations, part numbers, etc.;
e) relerence to accessories and spare parts, if relevant;
f) the type of packaging suitable for transport, if relevant:
g) kiformation on electrical properties in accordance with EN ISO 20345:2011, 8.2;
h) information on insocks In accordance with EN ISO 20345:2011. 8.3: II applicable
I) ioformation on chemical resistance of footwear in accordance with EN 13832-3:2006, 9.3; if applicable
j) iformation on assessment of the state of footwear for the wearer.
See Annex C for an example.
9.2 Antistatic footwear
Each pair of antistatic footwear shall be supplied with a leaflet containing the following wording.
Antistatic footwear should be used if it is necessary to minimize electrostatic build-up by dissipating electrostatic charges, thus avoiding the risk of spark ignition of, for example flammable substances and vapours, and if the risk of electric shock from any electrical apparatus or live parts has not been completely eliminated It should be noted, however, that antlsf5tlc footwear cannçt guarantee an adeauate protection against electric shock as it introduces only a resistance between foot and floor. If the flsk of electric shock has not been completely elimioated, additional measures to avoid this risk are essential, Such measures, as well as the additional tests mentioned below, should be a routine part of the accident prevention programme at the workplace.
Experience has shown that, for antistatic purposes, the discharge path through a product should normally have an electrical resistance of less than 1 000 IA at any time throughout its useful life. A value of 100 Ii. is spoof led as the lowest limit of resistance of a product when new, In order to ensure some limited protection against dangerous etectnc shock or ignition in the event of any electrical apparatus becoming defective when operating at voltages of up to 250 V. However, under certain conditions, users shoLid be aware that the footwear might give inadequate protection and additional provisions to protect the wearer should be taken at all times.
