ISO 19285:2017 PDF

Name: ISO 19285:2017 — Non-destructive testing of welds — Phased array ultrasonic testing (PAUT) — Acceptance levels
SKU: ISO 19285:2017
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Non-destructive testing of welds — Phased array ultrasonic testing (PAUT) — Acceptance levels

Название (английский):

ISO 19285:2017

Non-destructive testing of welds — Phased array ultrasonic testing (PAUT) — Acceptance levels

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 22
Дата публикации:: 10 августа 2017 г.
Издание:: ISO IS 19285 edition 1 version 1
ICS:: 25.160.40

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Описание (английский):

ISO 19285:2017 specifies acceptance levels for the phased array ultrasonic testing technique (PAUT) of full penetration welds in ferritic steels of minimum thickness of 6 mm which correspond to the quality levels of ISO 5817. These acceptance levels are applicable to indications classified in accordance with ISO 13588.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

ISO 19285:2017 - "Non-destructive testing of welds - Phased array ultrasonic testing (PAUT) - Acceptance levels" defines acceptance levels for phased array ultrasonic testing (PAUT) of full‑penetration welds in ferritic steels with a minimum thickness of 6 mm. The standard aligns PAUT acceptance criteria with the quality levels of ISO 5817 and applies to indications classified according to ISO 13588.

Key topics and technical requirements

Scope: PAUT acceptance levels for full‑penetration welds in ferritic steels (t ≥ 6 mm).

Acceptance levels: Three levels (1–3) mapped to ISO 5817 quality:

Level 3 - corresponds to ISO 5817 quality C/D (more restrictive)
Level 2 - corresponds to ISO 5817 quality B
Level 1 - by agreement (criteria are specified only for length/height evaluation)

Evaluation methods:

By length and height (Clauses 7 and 9)
Or by length and maximum amplitude (Clauses 8 and 10)
TOFD permitted for length/height measurement per ISO 15626
Fixed amplitude level technique (Annex B) for length measurement

Sizing rules:

Length measured along the weld using the focal law that gives maximum amplitude (or TOFD)
Height measured at the scan position of maximum extent; diffracted signals preferred (upper/lower tips) or alternative sizing (TCG, DGS, 6 dB drop, time‑of‑flight)

Acceptance criteria:

Tables define maximum allowable length and height by thickness ranges and acceptance level
Cumulative length rules: for t ≤ 50 mm, sum of acceptable indications over 12t must not exceed specified limits (e.g., Level 1: 3.5t, max 150 mm; Level 2: 4.0t, max 200 mm; Level 3: 4.5t, max 225 mm). For t > 50 mm, limits are % of weld length with maximums (500–700 mm depending on level)
Grouping rules: when separate indications are close in length and thickness direction they may be treated as one indication

Normative references: ISO 5577, ISO 5817, ISO 11666, ISO 13588, ISO 15626, ISO 17640

Applications and typical users

ISO 19285:2017 is used by:

NDT engineers and welding inspectors implementing PAUT

Quality managers and fabricators in oil & gas, power generation, pressure vessel, and pipeline industries

Organizations seeking objective acceptance criteria for PAUT in procurement specifications, inspection procedures, and conformity assessment

Practical benefits include standardized acceptance decisions, consistent defect sizing (length/height or amplitude), and clear cumulative/grouping rules for weld integrity assessment.

Related standards

ISO 13588 - Use of automated phased array technology

ISO 5817 - Welding quality levels for imperfections

ISO 11666, ISO 15626, ISO 17640, ISO 5577 - Related ultrasonic testing and terminology standards

Keywords: ISO 19285:2017, PAUT, phased array ultrasonic testing, acceptance levels, weld inspection, ferritic steels, ISO 5817, ISO 13588, TOFD, fixed amplitude level technique.

ISO 19285:2017 PDF

Abstract

Похожие стандарты

Overview

Key topics and technical requirements

Applications and typical users

Related standards

Технические детали

SIST EN ISO 5817:2023

Welding - Fusion-welded joints in steel, nickel, titanium and their alloys (beam welding excluded) - Quality…

SIST EN ISO 13588:2019

Non-destructive testing of welds - Ultrasonic testing - Use of automated phased array technology (ISO 13588:2…

BS EN ISO 15626:2018

Non-destructive testing of welds. Time-of-flight diffraction technique (TOFD). Acceptance levels.

SIST EN ISO 5577:2026

Non-destructive testing - Ultrasonic testing - Vocabulary (ISO 5577:2025)

SIST EN ISO 11666:2018

Non-destructive testing of welds - Ultrasonic testing - Acceptance levels (ISO 11666:2018)

SIST EN ISO 17640:2019

Non-destructive testing of welds - Ultrasonic testing - Techniques, testing levels, and assessment (ISO 17640…