TAPE USED WITH THIS PLUMB BOB MUST BE CUT TO FIT DUE TO THE 12 INCHES OF ADDITIONAL LENGTH IN THE BOB. SEE "WATER GAGE BARS" IN THE API MANUAL OF PETROLEUM MEASUREMENT'S CHAPTER 3.1.A.
Made of brass. 18¾” long, ¾” diameter. For use in gauging large stock tanks with heavy B.S. & W. Scribed in inches to 8ths and serrated entire length of body for water indicating paste. If used with standard gauge line for 42750 bob, add* 12 inches to the measurement. See “Water Gage Bars”; API/MPMS 3.1A, ASTM D1085. Wt. 2⅜ lbs.
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