In the early 1960s York Research Corporation, an independent commercial testing laboratory of Glenbrook, Connecticut conducted controlled testing on Bardahl.
ɪnðɪ ˈɜːli nˈaɪntiːnhˈʌndɹɪd sˈɪksti z jˈɔːɹk ɹᵻsˈɜːtʃ kˌɔːɹpɚɹˈeɪʃən, ɐn ˌɪndᵻpˈɛndənt kəmˈɜːʃəl tˈɛstɪŋ lˈæbɹətˌɔːɹi ʌv ɡlˈɛnbɹʊk, kənˈɛɾɪkət kəndˈʌktᵻd kəntɹˈoʊld tˈɛstɪŋ ˌɔn bˈɑːɹdɑːl.