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Protective technologies. Means of protection. Laser marking. Classification. General technical requirements
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Gas lasers. Methods for measuring the maximum instability of the axis of the laser radiation pattern
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Microbiology of food and animal feeding stuffs. Preparation of test samples, initial suspension and decimal dilutions for microbiological examination. Part 2. Specific rules for the preparation of meat and meat products
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Acoustics. Determination of sound power levels and sound energy levels of noise sources using sound pressure. Engineering/survey methods for use in situ in a reverberant environment
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