COMPLIANCE INFO_2010-2011 - Laserfiche WebLink

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0 0 286 to 560 48 0.093 MI5.1 INSPECTOR QUALIFICATION 561 to 1100 64 0.123 1101 to 4000 84 0.167 A qualified person shall perform ultrasonic 4001 to 12000 126 0.240 inspection. 12001 to 20000 144 0.302 20001 to 50000 144 0.365 MI5.2 GAUGING EQUIPMENT CAPABILITIES Note: The above tank metal thickness is the metal thickness requirements specified in UL - MI5.2.1 The thickness gauging equipment shall 58,table 3.1 and section 3.6. be capable of determining the thickness of the tank metal through the lining material. MI5.4.1.2 The original tank metal thickness shall be obtained from the tank manufacturer. MI5.2.2 The thickness gauging equipment shall have an accuracy of +/- 0.05mm. and a MI6.0 ULTRASONIC THICKNESS resolution of+/-0.05mm. GAUGING PROCEDURE MI5.2.3 Ultrasonic testing equipment shall be MI6.1 The interior tank surface shall be maintained in accordance with manufacturer's divided into sections and gauged as follows: instructions. MI6.1.1 WALLS -The tank cylinder wall shall MI5.3 SURFACE PREPARATION be divided into three-foot by three-foot sections beginning at one of the tank's ends at the MI5.3.1 After the tank has been emptied, the bottom and extending vertically around the tank circumference and horizontally along the interior tank surfaces shall be cleaned as tank's cylindrical length. Any additional area of required for the use of the ultrasonic thickness the tank's cylindrical sections which are less gauging equipment. than three feet by three feet shall be designated as additional sections (See Figure Bl of MI5.4 ORIGINAL TANK METAL Chapter B). THICKNESS MI5.4.1 Original tank metal thickness shall be established in accordance with either MI5.4. 1.1 or MI5.4.1.2 below. MI6.1.2 HEADS - Tank end caps heads shall be divided into four equal quadrants by extending horizontally and vertically from the MI5.4.1.1 Original tank metal thickness shall center of the end cap. Each quadrant shall be be based on the original tank metal thickness as divided into three-foot by three-foot sections listed below by the tank capacity and diameter. beginning at the center of the tank head and Capacily Diam.Original extending vertically and horizontally toward the tank walls. Any additional areas of the tank Thickness heads which are less than 3 foot by 3 foot shall U.S. gallons Inches Inches be designated as additional sections (see figure Up to 285 42 0.067 B2,Part 2 of Chapter B).