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Noise of machines. Textile machinery. Noise test code. Part 1. Common requirements
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Mining. The lighting of underground mines. Terms and definitions
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Optics and photonics. Light-absorbing coatings on the diaphragms of light-protective lens hoods. Typical technological process of application
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Direct reduced iron. Determination of carbon and/or sulphur content. Method of infrared spectroscopy after sample burning in induction furnace
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