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Electrically propelled road vehicles. Measurement of road operating ability-Thermal electric hybrid vehicles
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High efficiency air filters (HEPA and ULPA)-Classification, performance testing, marking
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High efficiency air filters (EPA, HEPA and ULPA)-Classification, performance testing, marking
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High efficiency air filters (EPA, HEPA and ULPA)-Classification, performance testing, marking
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High efficiency air filters (EPA, HEPA and ULPA)-Aerosol production, measuring equipment, particle counting statistics
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High efficiency air filters (HEPA and ULPA)-Testing flat sheet filter media
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High efficiency air filters (EPA, HEPA and ULPA)-Testing flat sheet filter media
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High efficiency air filters (HEPA and ULPA)-Determining leakage of filter element (scan method)
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