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PROTECTIVE CLOTHING

PROTECTIVE CLOTHING STANDARDS Service PROTECTIVE CLOTHING SCHUTZSTANDARDSSTANDARDS Class 2 – related to the process Manual welding techniques with considerable formation of welding spatter and metal droplets: » MMA welding » MIG welding with high voltage current » self-protective Flux-cored arc welding » Plasma welding » Gouging » Oxygen cutting » thermal spray welding Class 2 – related to the ambient conditions » narrow spaces » Overhead welding or cutting or work in comparable constrained positions. The clothing is not suitable for permanent grinding procedures. ong>ENong> ISO 11611:2015 ong>ENong> ISO 11612:2015 ong>ENong> ISO 11612:2015 Protective clothing for protection against heat and flames Tensile strength (ong>ENong> ISO 12934-1) > 400 N > 300 N Tear resistance (ong>ENong> ISO 13937-2) > 20 N Class 2; > 15 N Class 1; > 10 N Seam strength (ISO 13935-2) > 225 N > 225 N Dimensional change (ong>ENong> ISO 5077) Fabric < 3 % Knitted < 5 % Fabric < 3 % Knitted < 5 % SCOPE ong>ENong> ISO 11612:2015 regulates the requirements for protective clothing against heat and/or flames and for protection against large splashes of molten metal. DESIGNATION The code letters with the fulfilled class must be indicated under the pictogram. The higher the class, the higher the protection provided. CLASSIFICATION Code letter A: Flame test of materials and seams according to ong>ENong> ISO 15025 A1: Surface flaming 10 seconds A2: Edge flaming 10 seconds Code letter B: Protection against convective heat (ISO 9151) Defined flame test of the upper side of the material, whereong>byong> it is determined how long it takes for the temperature on the rear side of the material to rise ong>byong> 24 °C. B1 to B3. Code letter C: Protection against radiant heat (ong>ENong> ISO 6942 method B) It is measured how long it takes for the temperature on the back of the material to rise ong>byong> 24 °C when the material is exposed to heat radiation of 20 kW/m 2 . C1 to C4. Code letter D: Protection against molten aluminum (ISO 9185) The minimum quantity of liquid aluminum is poured out on the back of the material. After four consecutive tests, a PVC film (simulated skin) must not show any damage on the underside. D1 to D3. Code letter E: Protection against molten iron (ISO 9185) The minimum amount of liquid iron is poured over the material. After four consecutive test trials, a PVC film (simulated skin) must not show any damage on the underside. E1 to E3. Code letter F: Contact heat (ISO 12127-1) Test for protection against contact heat at a temperature of 250 °C. F1 to F3. Protective clothing that complies with this standard must meet the requirements for limited flame spread (code letter A) and at least one of the code letters for heat transfer (code letters B to F). AREAS OF APPLICATION The clothing is used among others in heavy industry, petrochemical and the automotive industry. With code D and E. The clothing is suitable for work in foundries, sometimes with the addition of aluminized protective clothing. In combination with dissipative components, the clothing can be worn on e.g. airports, petrochemical industry, refinery, cement works, etc. The clothing is not suitable for use in permanent grinding procedures. Liwithed flame spread - Code A (ong>ENong> ISO 15025) no further burning no hole formation No burning or melting dripping Afterburning time < 2 s Afterglow time < 2 s Specification of the A1 surface flaming process A2 edge flaming Convective heat - Code B (ISO 9151) — Radiant heat - Code C (ong>ENong> ISO 6942) — Liquid aluminum splashes - Code D (ong>ENong> ISO 6942) Liquid iron splashes - Code E (ong>ENong> ISO 9185) Contact heat - Code F Contact temperature 250 ° C (ISO 12127-1) Thermal resistance - shrinkage 180 ° C (ISO 17493) Resistance to small metal splashes (ISO 9150) Radiant heat transfer (ong>ENong> ISO 6942) — — — No further burning, no hole formation no burning or melting dripping Afterburning time < 2 s Afterglow time < 2 s Specification of the process A1 surface flaming A2 edge flaming Additional flame treatment of the seams and all layers B1: > 4 s to < 10 s B2: > 10 s to < 20 s B3: > 20 s C1: > 7 s to < 20 s C2: > 20 s to < 50 s C3: > 50 s to < 95 s C4: > 95 s D1: > 100 g to < 200 g D2: > 200 g to < 350 g D3: > 350 g E1: > 60 g to < 120 g E2: > 120 g to < 200 g E3: > 200 g F1: > 5s to < 10s F2: > 10s to < 15s F3: > 15s — < 5 % no ignition or melting > 15 drops (class 1) > 25 drops (class 2) RHTI 24 > 7 s (class 1) RHTI 24 > 16 s (class 2) Contact resistance > 10 5 Ω (at 85 % relative humidity) — Pre-treatment At least 5x or according to the manufacturer's labeling At least 5x or according to the manufacturer's labeling Fit/design requirements New in the 2015 editions: Jacket and trousers overlap when arms are stretched upwards and bent downwards until fingertips touch the floor, maximum 15 cm distance between button fastenings, pockets must be covered with flaps 1. All individual results of the samples in a test must meet the performance requirements. — — Overlap of jacket and trousers when arms are stretched up and bent downwards until fingertips touch the groand, special requirements for Code D and E Pockets must be covered with flaps RHTI = Radiant Heat Transfer Index 2. The measurement uncertainty must be determined for all of the required measurements. Even taking the measurement uncertainty into account, each value must meet the performance requirement. 222 Your service number: +49 5923 898-0 WWW.ong>ROFAong>.DE 223