AN ACT AUTHORIZING THE USE OF ULTRASONIC THICKNESS DETERMINATION OF AIR TANKS AND OTHER RECEPTACLES.
Be it enacted by the Senate and House of Representatives in General Court
assembled, and by the authority of the same as follows:
SECTION 1. Section 39 of chapter 146 of the General Laws,
as appearing in the 2004 Official Edition, is hereby amended by inserting after
the word "for", in line 1, the following word:- internal.
SECTION 2. Said section 39 of said chapter 146, as so appearing,
is hereby further amended by inserting after the word "material",
in line 4, the following 4 sentences: Ultrasonic thickness determination shall
be permitted in lieu of, or in conjunction with, internal inspection for air
tanks or other receptacles of 36 inches diameter or less. Thickness
measurements shall be made in at least 8 areas: 2 on each head and 2 on both
the top and bottom portions of the shell. Thickness determinations
indicating significant reduction in material thickness over a general area shall
be shown on the inspection report, as well as calculations for the reduction
in allowable working pressure. The authorized inspector's employer
shall be responsible for the inspector's or the ultrasonic examiner's competency
in the use of the ultrasonic thickness gauge and the examiner's signed report
shall be attached to the authorized inspector's inspection report.