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Plastics piping systems. Plastics components of piping systems. Determination of dimensions
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Best available techniques. Intensive rearing of poultry.Recommendations for production ecological control
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Polymeric packaging for food stuff. General specifications
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State system for the uniformity of measurements. Standard platinum resistance thermometers of the first and second grades. General technical requirements
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State system for ensuring the uniformity of measurements. D.C. electrical energy meters. Methods and means of calibration
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