ASME Boiler & Pressure Vessel Code (BPVC) & NDT Examination Guide

Before you scan any weld with ultrasound, your tool must be calibrated against a test block of the same metal and thickness. If the tool cannot hit the known test holes accurately, the field report is legally invalid.

Industrial X-ray standards for welds: defines how dark and sharp the film must be, and requires a reference wire (IQI) to appear on the image to prove small defects would be visible.

Checks for surface cracks using colored dye (PT) or magnetic powder with an electric magnet (MT). Catches tiny cracks that could cause high-pressure vessels or nozzles to tear open.

Inspects heat exchanger tubes from the inside using electromagnetic coils. Measures how much wall thickness has been eaten away by corrosion without cutting the tube open.

Uses a vacuum glass box and soapy bubble solution over welded seams on storage tank bottoms. If a leak exists, vacuum pulls air through and blows visible soap bubbles.

The world standard for building and inspecting pressure tanks and reactors. Governs maximum allowable pressure, safety relief valves, and required X-ray or ultrasound inspections.

Advanced rules for massive high-pressure reactors. Allows thinner walls by requiring thorough computer stress analysis and 100% ultrasound scanning of all critical seams.

Strict safety rules for electric power plant steam boilers. Prevents catastrophic high-pressure steam explosions by mandating X-ray testing of all steam drum seams.

The bible for refinery and chemical plant pipe systems. Dictates minimum pipe thickness, weld testing rates (5% random to 100% for toxic fluids), and leak test safety rules.

Rules for high-pressure steam pipes in power stations. Prevents catastrophic blowouts by requiring 100% volumetric weld scans and monitoring for heat fatigue over time.

Safety codes for cross-country oil and gas transmission pipelines. Governs weld testing in populated zones, internal robotic smart-pig inspections, and hydrotest pressure testing.

The nuclear safety code for inspecting operating nuclear plants. Mandates that ultrasonic technicians pass blind qualification tests (PDI) on realistic defect mockups.

Rules for certifying welders and welding recipes. Ensures the technician can produce strong, defect-free welds by testing coupons with bend tests, X-rays, or ultrasound.

The repair handbook for aging plants: provides proven methods for installing flush weld patches, mechanical leak clamps, and carbon-fiber composite wraps to restore integrity safely.

The engineering toolkit to decide if damaged equipment can safely keep operating. Calculates whether corroded walls, dents, or small cracks require immediate shutdown or can safely run.