Source: https://www.govregs.com/regulations/49/180.509
Timestamp: 2020-01-27 20:07:25
Document Index: 100895732

Matched Legal Cases: ['§ 180', '§ 180', '§ 180', '§ 180', '§ 180', '§ 180', '§ 173', '§ 180', '§ 180', '§ 180', '§ 180', '§ 180', 'art 179', '§ 180', '§ 171', '§ 173', '§ 171']

49 CFR 180.509 - Requirements for inspection and test of specification tank cars. § 180.509 - Requirements for inspection and test of specification tank cars.
§ 180.509 - Requirements for inspection and test of specification tank cars.
(2) Evaluates each item according to the acceptable results of inspections and tests specified in § 180.511;
(3) Marks each tank car as specified in § 180.515 that is qualified to transport hazardous materials;
(4) Prepares the documentation as required by § 180.517 for each item qualified under this section. A copy of the documentation required by § 180.517 must be sent to the owner as appropriate and according to the owner's instructions.
(2) For Class DOT 113 tank cars, see § 173.319(e) of this subchapter.
Section 180.509 (*)
F Thickness test See § 180.509(f).
I Internal coating or lining (for materials corrosive or reactive to the tank) (See definitions at § 180.503) See § 180.509(i).
K Service equipment (including pressure relief device) See § 180.509(k).
(A) The tank is used to transport a material that is corrosive or reactive to the tank (see Appendix D of this part) or service equipment as defined § 180.503, and
Where: A. As-built tank shell or head thickness with additional thickness. B. Required minimum tank shell or head thickness after forming per part 179. C. Inspection frequency adjustment point (design minimum shell or head thickness, minus 1/2 of the table value in paragraph (g) of this section). D. Condemning limit for general corrosion (required minimum shell or head thickness, minus the value in paragraph (g) of this section). E. Condemning limit for localized corrosion (required minimum shell or head thickness, minus the table value in paragraph (g) of this section, minus 1.58 mm ( 1/16 inch)). See Note 1 in paragraph (g) of this section for diameter limitations and minimum separation distances. F. Allowable shell or head thickness reduction (table value in paragraph (g) of this section). G. Additional thickness reduction for localized areas in paragraph (g) of this section.
(3) For a localized repair of an internal coating or lining where a material corrosive to the tank or service equipment as defined § 180.503 has contacted the tank, a qualified individual must verify the coating or lining's conformance with paragraph (g) of this section by measuring the shell or head in the area of the repair. The thickness test applies only to the non-lined or coated repaired area, and is not a qualification event. Modification of the tank stencil is not required.
1/8 inch 1.58 mm.
1/16 inch.
1/32 inch 0.79 mm.
A tank car owner may add an extra 1.58 mm ( 1/16 inch) to the values in the table for local reductions. Local reductions are those that do not exceed 20.32 linear centimeters (8 linear inches) measured at the longest diameter, and are separated from the other local reductions by at least 40.64 cm (16 inches).
Any reduction in the tank car shell thickness may not affect the structural strength of the tank car to the extent that the tank car no longer conforms to the applicable provisions of Section 6.2 of the AAR Specifications for Tank Cars (IBR, see § 171.7 of this subchapter).
For DOT 115 class tank cars, shell thickness reductions apply only to the outer shell of the tank car. There is no shell or head thickness reduction authorized for the inner tank.
(i) Internal coating and lining inspection and test. (1) At a minimum, the owner of an internal coating or lining applied to protect a tank used to transport a material that is corrosive or reactive to the tank must ensure an inspection adequate enough to detect defects or other conditions that could reduce the design level of reliability and safety of the tank is performed. In addition, the owner of a coating or lining of tank cars used to transport hazardous materials must ensure the lining complies with § 173.24(b)(2) and (b)(3) of this subchapter.
(2) Each tank car facility must qualify service equipment, including reclosing pressure relief devices and interior heater systems in accordance with the applicable provisions of Appendix D of the AAR Specifications for Tank Cars (IBR, see § 171.7 of this subchapter).