API tests

If the purchaser is not satisfied with the wire rope service, he or she shall send the properly preserved sample or a sample of the rope from an unused section to any testing laboratory mutually agreed upon by the purchaser and the manufacturer, with instructions to make a complete API test, and notify the manufacturer to have a representative present. If the report indicates compliance with specifications, the purchaser shall assume cost of testing otherwise, the manufacturer shall assume the expense and make satisfactory adjustments not exceeding full purchase price of the rope. If the report indicates noncompliance with specifications, the testing laboratory shall forward a copy of the test report to the manufacturer. 

Accuracy of reference weighing 98.0-102.0% recovery API 98.0-102.0% recovery API 75-125% recovery API Tested by analysis of a second reference solution... 

Phenotypical isolates from purified water shall be characterized. Biochemical testing (such as oxidase test, urease test, catalase test, citrate test, coagulase test, and indole test) and commercial test kits (such as API tests) and reagents may be used for conformation of some unique isolates. 

Isolates from WFI shall be identified to species level (if possible) using API tests/automated identification system. This pertains to the detection of any isolate obtained from a sample that breaches the alert or action level. 

Differences Between CCMC/ACEA Categories and API Test Sequences... 

A statement of the test results and how they compare with established standards of quality and purity for the raw material, intermediate, or API tested ... 

The level of intensive in-process and final API testing should be greater than levels for validated routine production runs, and should only be reduced to routine levels after the process has been determined to be validated. In addition, data from production runs that are evaluated as part of the validation studies should encompass the operating ranges that are approved for use during routine process control. 

Because of the strong effect of iron ions on sludge formation, especially Fe, several researchers [9, 36, 40] modified the API test procedure by adding up to 10,000 mg/L of iron (Fe and Fe ) to the acid. This amount of iron is equivalent to the iron that would be dissolved by the acid during pumping. 

COMPOUNDS USED IN EXTRUSION RESISTANCE EVALUATION USING API TEST... 

Extrusion resistance a test similar to the API test described earlier in this chapter (Section 5.2). 

Identification by phenotypic analysis of clones isolated in wine often poses two kinds of problems. First, these clones are difficult to multiply in laboratory conditions. Numerous sub-cultures are needed to obtain a sufficient biomass to carry out all of the tests. For the same reasons, the response to biochemical tests in the API tests (Section 4.3.2) can be ambiguous. The change of color of the indicator is not distinct if the strain does not multiply sufficiently in the microtube. Second, the phenotypic character, such as the assimilation of a... 

To carry out the API test, 0.1 ml of bacterial suspension is deposited in each of the 50 microtubes. The tubes are sealed with a drop of paraffin to ensure anaerobiosis. Generally, the system is incubated at 25°C for 24 hours. Tubes in which the color changes from blue to yeUow indicate positive characters. In this manner, the fermentation profile of the examined strain can be established (Figure 4.6). 

It was found that a combination of large-flake graphene oxide and powdered graphene oxide in a ratio of 3 1 performed best in the API tests, allowing an average fluid loss of 6.1 ml over 30 min and leaving a filter cake of ca. 20 pm thickness. 

The API test uses a standard culture media for specific bacteria. Other media have been used or different techniques have been applied to estimate the quantity of bacteria. Field tests showed the following ... 

The octane number requirement (ONR) of a car is the octane number which causes barely audible, ie, trace knock when driven by a trained rater. The Coordinating Research Council (CRC), a research organi2ation funded joindy by the American Petroleum Institute (API) and the American Automobile Manufacturers Association (AAMA), has defined test procedures for measuring ONR. Each car is driven under a set of light and heavy accelerations until the most sensitive driving mode is determined. Then a series of fuels is mn in the car until trace knock is determined. Each year, CRC members measure ONR of more than 100 cars and pubHsh the results. 

Procedures for determining drilling fluid properties ate available (21,22,166). Tests and test methods ate constantly reviewed by API committees to ensure acceptable accuracy when performed under field conditions as well as in the laboratory. API pubHcations ate tepubUshed as new tests ate added or existing tests ate modified. 

StandardProcedureforField Testing Water-BasedDrillingFluids, API RP 13B-1,1st ed., American Petroleum Institute, Washiagton, D.C., June 1990. 

The Federal Trade Commission has aimounced a rule, effective November 30, 1995, that sets test procedures and labeling standards for recycled oil used as engine lubricating oil (35). The test procedures used are those contained in the Engine Oil Licensing and Certification System of the American Petroleum Institute (API) (36). The rule states in effect that if recycled oils meet the requirements of the API Certification System, such oils ate substantially equivalent to new oil for use as engine oil. This federal rule preempts certain state recycled oil rules (35). 

Oil well cements (78) are usually made from Pordand cement clinker and may also be blended cements. The American Petroleum Institute Specification for Materials and Testing for Well Cements API Specification 10) (78) includes requirements for nine classes of oil well cements. They are specially produced for cementing the steel casing of gas and oil wells to the walls of the bore-hole and to seal porous formations (79). Under these high temperature and pressure conditions ordinary Pordand cements would not dow propedy and would set prematurely. Oil well cements are more coarsely ground than normal, and contain special retarding admixtures. 

Because of the time and expense involved in conducting laboratoiy distillation tests of all three basic types, it has become increasingly common to use empirical correlations to estimate the other two distillation curves when either the ASTM, TBP, or EFN- curve is available. Preferred correlations given in the API Technical Data Book—Petroleum Refining (op. dt.) are based on the work of Edmister and Pollock [Chem. Eng. Prog., 44, 905 (1948)], Edmister and Okamoto [Pet. Refiner, 38(8), 117 (1959) 38(9), 271 (1959)], Maxwell Data Book on... 

Special Arrester Types and Alternatives Several types of unlisted arresters (water seals, packed beds, velocity-type devices, and fast-acting valves) mentioned in API 2028 are described more fully in Howard (1982). There are few design or test data for hydraulic and packed-bed arresters some types are designed and used by indiviciual companies for specific applications, while others are commercially available. Figure 26-27 shows some special arrester types. 

The gas turbine is a eomplex maehine, and its performanee and reliability are governed by many standards. The Ameriean Soeiety of Meehanieal Engineers (ASME) performanee test eodes have been written to ensure that test, are eondueted in a manner that guarantees that all turbines are tested under the same set of rules and eonditions to ensure that the test results ean be eompared in a judieious manner. The reliability of the turbines depend on the meehanieal eodes that govern the design of many gas turbines. The meehanieal standards and eodes have been written by both ASME and the Ameriean Petroleum Institute (API). 

The word lest is quite broad in its definition, and many of the inspection steps in the course of the compressor manufacturing cycle can appropriately be called tests. An example would be the material tests. The API mechanical equipment standards, however, attempt to narrow the test definition. This chapter will discuss testing within these narrowed definitions. The first test defined in most API mechanical equipment standards is the hydrostatic test, and it will, therefore, be the first test covered in the chapter. 

Rec rocating cylinder water jackets are tested at IA times specified working pressure for the cooling fluid. API 618 recommends a pressure of no less than 115 psig. 

Obviously this test applies only to the centrifugal compressor. The manufacturer normally performs this test whether specified or not. Since the user does have an interest in the test, some discussion of the parameters is in order. API 617 mandates the test, which includes the requirement to spin the impeller at a speed of 115% of the maximum continuous speed for a duration of one minute. 

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