Electrical apparatus for the detection and measurement of flammable gases. Part 4. Performance requirements for group I1 apparatus indicating a volume fraction up to 100% lower explosive limit
Earth-moving machinery. Functional safety. Part 4. Design and evaluation of software and data transmission for safety- related parts of the control system
Resources saving. Best available techniques. Environmentally sound management of wastes consisting of, containing or contaminated with persistent organic pollutants
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