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B 6 <br /> ' 1 <br /> 1 <br /> holding) so the regulator was adjusted to 3 psi . Later the <br /> pressure was increased twice more to 13 psi . The check valve was <br /> still holding. Repeated testing over the entire area was with <br /> negative results . It was noted that the flow of Helium through <br /> the regulator was very low, indicating a very small leak . The <br /> testing was terminated due to late hour . <br /> It was decided that a. precision leak test wi 1 1 be performed <br /> on 2-22-89e weather permitting . H concurrent pipe line test will <br /> be conducted at that time . <br /> THA;i`!K YOU <br />