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Preparation of steel substrates before application of paints and related products. Analytical colorimetry method to support visual assessment of surface preparation grades
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State system for ensuring the uniformity of measurements. Standard thermoelectric converters platinumrhodium/platinum of the first, second and third grades. Verification and calibration procedure
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State system for ensuring the uniformity of measurements. Optical power meters, optical radiation sources, return loss meters and optical testers for fiber-optical information transfer systems. Verification method
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State system for ensuring the uniformity of measurements. Frequency and/or time standards. Methods for assessing basic metrological characteristics using signals transmitted by global navigation satellite
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State system for ensuring the uniformity of measurements. Certified reference materials of composition of gas mixtures. Methods of measurement design and of data evaluation in comparison
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State system for ensuring the uniformity of measurements. Metals and alloys. Brinell hardness test. Part 1. Test method
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