01731nam 2200469Ia 450 991071110830332120180711120954.0GOVPUB-C13-7fb22e2ded6b1ca0a002d424f135774b(CKB)5470000002480932(OCoLC)959982407(OCoLC)995470000002480932(EXLCZ)99547000000248093220161006d1962 ua 0engtxtrdacontentcrdamediacrrdacarrierPerformance test of the Blue Balance type automatic renewable filter media supplied by Electro-Air Cleaner Company McKees Rocks, Pennsylvania /Carl W. CoblentzGaithersburg, MD :U.S. Dept. of Commerce, National Institute of Standards and Technology,1962.1 online resourceNBS report ;75551962.Contributed record: Metadata reviewed, not verified. Some fields updated by batch processes.Title from PDF title page.Includes bibliographical references.Performance test of the Blue Balance type automatic renewable filter media Air filtersTestingAir filtersTestingfastAir filtersTesting.Air filtersTesting.Coblentz Carl W1388746Coblentz Carl W1388746United States.National Bureau of Standards.NBSNBSOCLCOOCLCFOCLCQBOOK9910711108303321Performance test of the Blue Balance type automatic renewable filter media3459968UNINA