API RP 1525:1997 pdf download.Bulk Oil Testing, Handling, and Storage Guidelines
7 Unloading Procedures
7.1 BEFORE UNLOADING TRUCKS 7.1.1 Properly position the truck for unloading; secure the brakes, and chock the tires. 7.1.2 Carefully check delivery documents to verify the products and quantities to be unloaded. If multiple products are included in separate compartments, take special care to avoid possible cross-contamination. A Bulk Receiving/Batch Log (see Appendix A) should be maintained for each product received. 7.1.3 Obtain a sample, per sampling instructions (see Appendix B). Complete the identification label, attach it to the sample bottle, and submit the sample to the laboratory. 7.1.4 Gauge the receiving tank to verify that there is enough room for the product to be unloaded. The quantity of the product to be unloaded should not exceed safe tank height, which is considered to be 90 percent of tank capacity. 7.1.5 Upon release by the laboratory, or verification that the shipment conforms to acceptance criteria, connect the ground strap to the trailer and prepare to unload the truck. 7.1.6 All unloading should be performed in accordance with applicable safety procedures and governmental regula- tions. 7.1.7 Inspect hoses for integrity and the absence of con- taminants. Faulty hoses should not be used. Hoses used for unloading other products, or hoses that are dirty, should be flushed prior to use. 7.1.8 Before unloading, lines and valves must be set to direct the product to the proper tank. Piping systems with common lines, pumps, or manifolds should be flushed to dis- place any prior product (see Table 1). Note: All trucks/trailers have emergency or hydraulic valves that must be opened before unloading can begin. Operator must ensure the dome hatch is not obstructed, which could cause the trailer to implode.
7.2 DURING UNLOADING
7.2.1 Once pumping has begun, inspect the system for pos- sible leaks. If any leaks are noted, the unloading should be discontinued while the leak is repaired. Drip pans should be used to collect or contain any spillage.7.2.2 During pumping, observe the pressure level on the pump discharge. An unusually low or high pressure may indi- cate that the pump suction is obstructed, or that the dome cover or valves are improperly open. Also, check the receiv- ing tank to verify that the product from the trailer has been directed to the correct tank. If any anomalies are noted, all pumping operations should be shut down until the matter is understood and resolved.
API RP 1525:1997 pdf download
PS:Thank you for your support!
