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A motor carrier who isn't the proprietor of a cargo tank motorized vehicle must additionally retain a copy of the vehicle certification report for so long as the cargo tank motorcar is utilized by that service and for one year thereafter. The info required by this part should be maintained on the firm's principal office or at the location the place the vehicle is housed or maintained.
The sign path leaves the transmitter, passes via the mud column, travels along the borehole wall and is collected at a number of receivers spaced out along the tool body. The time it takes for the sound wave to journey through the rock depends on a number of properties of the prevailing rock, including formation porosity, lithology, permeability and rock power. Different forms of strain waves can be generated in particular axis, permitting geoscientists to find out anisotropic stress regimes.
Copies of these records must be retained by a motor carrier, if not the proprietor of the cargo tank motorcar, at its principal place of work in the course of the interval the cargo tank motor vehicle is in the carrier's service. Hoses on cargo tanks in dedicated liquefied compressed gas, except carbon dioxide, service are excepted from these testing necessities, however must be tested in accordance with § one hundred eighty.416(f). Each cargo tank having cracks or other defects requiring welded repairs must meet all inspection, check, and warmth remedy necessities in § 178. of this subchapter in effect on the time of the repair, besides that postweld warmth remedy after minor weld repairs just isn't required. Prior to each restore, modification, stretching, rebarrelling, or mounting, the cargo tank motorcar have to be emptied of any hazardous materials lading.
This is very important in determining gap stability and aids drilling engineers in planning for future well design. With the engine stopped, install the strain gauge with the shutoff valve within the open place.
In the event of a change in ownership, the prior proprietor must retain non-fading picture copies of these paperwork for one year. At least once each calendar month a cargo tank is in service, the operator should actuate all emergency discharge management units designed to shut the interior self-closing stop valve to guarantee that every one linkages function as designed. appendix A to this half outlines acceptable procedures that may be used for this test. This part is applicable to an operator utilizing specification MC 330, MC 331, and nonspecification cargo tanks authorized under § 173.315(k) of this subchapter for transportation of liquefied compressed gases other than carbon dioxide. Paragraphs (b), (c), (d), (d), (e), (f), and (g) of this part, relevant to delivery hose assemblies, apply solely to hose assemblies installed or carried on the cargo tank.
The provisions of this part don't apply to a motor carrier who leases a cargo tank for less than 30 days. This would include any certification of emergency discharge management techniques required by § 173.315(n) of this subchapter or § a hundred and eighty.405(m). The owner must retain the paperwork all through his possession of the specification cargo tank and for one 12 months thereafter.