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  • BSI
    BS EN ISO 20769-1:2018 Non-destructive testing. Radiographic inspection of corrosion and deposits in pipes by X - and gamma rays - Tangential radiographic inspection
    Edition: 2018
    $500.66
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Description of BS EN ISO 20769-1:2018 2018

This document specifies fundamental techniques of film and digital radiography with the object of enabling satisfactory and repeatable results to be obtained economically. The techniques are based on generally recognized practice and fundamental theory of the subject.

This document applies to the radiographic examination of steel pipes for service induced flaws such as corrosion pitting, generalized corrosion and erosion. Besides its conventional meaning, “pipe” as used in this document is understood to cover other cylindrical bodies such as tubes, penstocks, boiler drums and pressure vessels.

Weld inspection for typical welding process induced flaws is not covered, but weld inspection is included for corrosion/erosion type flaws.

The pipes can be insulated or not, and can be assessed where loss of material due, for example, to corrosion or erosion is suspected either internally or externally.

This document covers the tangential inspection technique for detection and through-wall sizing of wall loss, including with the source:

  1. on the pipe centre line; and

  2. offset from pipe centre line by the pipe radius.

ISO 20769‑2 covers double wall radiography, and note that the double wall double image technique is often combined with tangential radiography with the source on the pipe centre line.

This document applies to tangential radiographic inspection using industrial radiographic film techniques, computed radiography (CR) and digital detector arrays (DDA).



Standard NumberBS EN ISO 20769-1:2018
TitleNon-destructive testing. Radiographic inspection of corrosion and deposits in pipes by X - and gamma rays - Tangential radiographic inspection
StatusRevision Underway
Publication Date2018-11-08
ReplacesBS EN 16407-1:2014
Identical National Standard OfISO 20769-1:2018, EN ISO 20769-1:2018
DescriptorsGrades (quality), Marking, Steels, Radiographic testing, Industrial, Non-destructive testing, Shields, Metals, Nickel alloys, X-rays, Radiographic film, Thickness, Density, Test equipment, Copper alloys, Testing conditions, Flaw detection, Gamma-radiation
ICS19.100 Non-destructive testing, 23.040.01 Pipeline components and pipelines in general
CommitteeWEE/46
ISBN978 0 580 98756 4
PublisherBSI
Pages46

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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