Diagrams for the chemical and petrochemical industry-Graphical symbols
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Flow diagrams for process plants. General rules
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Water quality. Guidance for the preparation and treatment of poorly water-soluble organic compounds for the subsequent evaluation of their biodegradability in an aqueous medium
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Dentistry. Central suction source equipment
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Hexagon socket countersunk head screws
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Screw and washer assemblies made of steel with plain washers. Washer hardness classes 200 HV and 300 HV
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Dentistry. Powered polymerization activators-Light-emitting diode (LED) lamps
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Dentistry. Powered polymerization activators
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Lung ventilators for medical use. Particular requirements for basic safety and essential performance-Home care ventilators for ventilator-dependent patients
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