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Direct purchase of the latest edition from the official American Petroleum Institute website.
The standard mandates specific acceptance criteria for magnetic particle, liquid penetrant, and ultrasonic inspections. For example, maximum residual magnetism after demagnetization is ±2.0 gauss , as measured with a digital gauss meter. Indications are categorized by severity (A, B, C) with varying maximum acceptable sizes, from 0.8 mm for linear indications in the strictest category to 3.2 mm for non-linear indications in the most lenient category. Api 687 Pdf Free Download
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Industrial facilities are subject to strict regulatory audits (such as OSHA or ISO). Utilizing pirated documentation can lead to severe fines, loss of certification, and voided insurance policies. Indications are categorized by severity (A, B, C)
It specifically prohibits the use of plasma spray, plating, or metalizing for repairing bearing journals, seal areas, and impeller fits unless otherwise specified.