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Petroleum and natural gas industries. Downhole equipment. Lock mandrels and landing nipples. General technical requirements
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Vulcanized rubber and thermoelastoplasts. Determination of resistance to the effect of liquids
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Rubber test mixes. Preparation, mixing and vulcanization. Equipment and procedures
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Information technology. Automatic identification and data capture techniques. Code 39 bar code symbology specification
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Conformity assessment system for the use of nuclear energy. Conformity assessment in the form of testing. Qualification testing for new material (base or welding)
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