ISO 16148:2016 PDF

Gas cylinders — Refillable seamless steel gas cylinders and tubes — Acoustic emission examination (AT) and follow-up ultrasonic examination (UT) for periodic inspection and testing

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ISO 16148:2016

Gas cylinders — Refillable seamless steel gas cylinders and tubes — Acoustic emission examination (AT) and follow-up ultrasonic examination (UT) for periodic inspection and testing

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 27
Дата публикации:: 11 апреля 2016 г.
Издание:: ISO IS 16148 edition 2 version 1
ICS:: 23.020.30

Язык документа:

ruen

Срок поставки:5 раб. дн. (перевод)

Цена:405 €

Описание (английский):

ISO 16148:2016 gives procedures for the use of acoustic emission examination (AT) and ultrasonic examination (UT) follow-up during the periodic inspection and testing of seamless steel cylinders and tubes with a water capacity of up to 3 000 l used for compressed and liquefied gases. This examination provides acoustic emission (AE) indications and locations that are evaluated by a secondary examination using UT for a possible flaw in the cylinder or tube. Methods other than UT for the secondary examination are not covered by this International Standard. ISO 16148:2016 does not cover composite cylinders. CAUTION ? Some of the tests specified in this International Standard involve the use of processes which could lead to a hazardous situation.

Технические детали

Технический комитет: ISO/TC 58/SC 4 - Operational requirements for gas cylinders
SKU: ISO 16148:2016

Abstract

Overview

ISO 16148:2016 specifies procedures for using acoustic emission examination (AT) with a follow-up ultrasonic examination (UT) during periodic inspection and testing of refillable seamless steel gas cylinders and tubes (water capacity up to 3 000 L) used for compressed and liquefied gases. The standard defines how acoustic emission (AE) indications are detected and located, and requires a secondary UT (shear‑wave/angle beam is the intended method) to verify and size possible flaws. Composite cylinders are excluded. Some tests involve hazardous pressurization-caution is required.

Key topics and requirements

Scope: AT + UT follow-up for seamless steel cylinders/tubes up to 3 000 L; other secondary methods are not covered.
AT Methods: Defines Method A (pneumatic pressurization to ≥110% normal filling pressure; typically for assemblies/bundles) and Method B (AT during hydrostatic proof pressurization to re‑test pressure on each cylinder).
Pressurization: Test medium may be gas or liquid; AT pressures must exceed previous maximum service pressure to avoid the Kaiser effect.
AE detection & location: Piezoelectric sensors and signal processors record AE events; at least two sensors are needed to triangulate source locations.
UT follow-up: Shear wave (angle beam) UT immediately evaluates AE‑identified locations; use of calibration rings, distance amplitude correction (DAC) curves, and standardization procedures is required.
Acceptance criteria: If UT reveals discontinuities exceeding specified depth/critical size limits (based on material, wall thickness, fatigue/fracture assessment), the cylinder/tube is removed from service.
Personnel & competence: Operators must meet ISO 9712 (or equivalent, e.g., ASNT SNT‑TC‑1A) qualifications; Level I/II operators perform tests under Level III oversight.
Equipment, calibration & safety: AT equipment specification, calibration/verification, real‑time evaluation criteria and safety precautions are covered. Some annexes provide detailed instrument settings, verification, and UT follow‑up procedures.

Applications and users

ISO 16148:2016 is used by:

NDT and inspection companies performing periodic testing of gas cylinders and tube trailers
Cylinder manufacturers and refurbishment/test facilities replacing hydraulic proof tests with AT/UT where permitted
Gas suppliers, transport operators and certification bodies ensuring cylinder integrity and regulatory compliance
Regulatory authorities and technical committees developing inspection regimes for compressed and liquefied gas containment

Keywords: ISO 16148:2016, acoustic emission (AE), AT, ultrasonic examination (UT), periodic inspection, seamless steel gas cylinders, NDT, follow‑up UT.

Related standards

Normative references include ISO 9712, ISO 5577, ISO 12716, ISO 6406, ISO/IEC 17025, EN 13477‑1/2, ASTM E1419, and ASNT SNT‑TC‑1A. These cover NDT vocabulary, personnel qualification, equipment characterization and laboratory competence.

Overview

Key topics and requirements

Scope: AT + UT follow-up for seamless steel cylinders/tubes up to 3 000 L; other secondary methods are not covered.
AT Methods: Defines Method A (pneumatic pressurization to ≥110% normal filling pressure; typically for assemblies/bundles) and Method B (AT during hydrostatic proof pressurization to re‑test pressure on each cylinder).
Pressurization: Test medium may be gas or liquid; AT pressures must exceed previous maximum service pressure to avoid the Kaiser effect.
AE detection & location: Piezoelectric sensors and signal processors record AE events; at least two sensors are needed to triangulate source locations.
UT follow-up: Shear wave (angle beam) UT immediately evaluates AE‑identified locations; use of calibration rings, distance amplitude correction (DAC) curves, and standardization procedures is required.
Acceptance criteria: If UT reveals discontinuities exceeding specified depth/critical size limits (based on material, wall thickness, fatigue/fracture assessment), the cylinder/tube is removed from service.
Personnel & competence: Operators must meet ISO 9712 (or equivalent, e.g., ASNT SNT‑TC‑1A) qualifications; Level I/II operators perform tests under Level III oversight.
Equipment, calibration & safety: AT equipment specification, calibration/verification, real‑time evaluation criteria and safety precautions are covered. Some annexes provide detailed instrument settings, verification, and UT follow‑up procedures.

Applications and users

ISO 16148:2016 is used by:

NDT and inspection companies performing periodic testing of gas cylinders and tube trailers
Cylinder manufacturers and refurbishment/test facilities replacing hydraulic proof tests with AT/UT where permitted
Gas suppliers, transport operators and certification bodies ensuring cylinder integrity and regulatory compliance
Regulatory authorities and technical committees developing inspection regimes for compressed and liquefied gas containment

Keywords: ISO 16148:2016, acoustic emission (AE), AT, ultrasonic examination (UT), periodic inspection, seamless steel gas cylinders, NDT, follow‑up UT.

ISO 16148:2016 PDF

Технические детали

Abstract

Overview

Key topics and requirements

Applications and users

Related standards

Похожие стандарты

Abstract

Overview

Key topics and requirements

Applications and users

Related standards

Похожие стандарты

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