Russian standards PDF
Plugs, socket-outlets and couplers for industrial purposes. Part 2. Dimensional interchangeability requirements for pin and contact-tube accessories
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Lampholders for tubular fluorescent lamps and starter holders
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Transportable motor-operated electric tools. General safety requirements and testing methods
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Electromechanical elementary relays. Part 1. General requirements
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Petroleum and natural gas industries. Downhole equipment. Subsurface safety valve equipment. General technical requirements
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Microbiology of food and animal feeding stuffs. Protocol for the validation of alternative methods
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