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Nickel-cadmium accumulators for railway carriages. Basic parameters and dimensions
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Explosive atmospheres. Part 31. Equipment dust ignition protection by enclosure 't'
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Explosive atmospheres. Part 35-1. Caplights for use in mines susceptible to firedamp. General requirements and test methods in relation to the risk of explosion
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Electrostatics. Part 2.1. Measurement methods. Ability of materials and products to dissipate static electric charge
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Stationary lead-acid batteries. Part 22. Valve regulated types. Requirements
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