ISO 16811:2012 PDF

Non-destructive testing — Ultrasonic testing — Sensitivity and range setting

Название (английский):

ISO 16811:2012

Non-destructive testing — Ultrasonic testing — Sensitivity and range setting

Статус документа:: Отменён
Формат:: Электронный (PDF)
Количество страниц:: 38
Дата публикации:: 23 марта 2012 г.
Издание:: ISO IS 16811 edition 1 version 1
ICS:: 19.100

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Описание (английский):

ISO 16811:2012 specifies the general rules for setting the timebase range and sensitivity (i.e. gain adjustment) of a manually operated ultrasonic flaw detector with A-scan display in order that reproducible measurements may be made of the location and echo height of a reflector. ISO 16811:2012 is applicable to techniques employing a single contact probe with either a single or twin transducers, but excludes the immersion technique and techniques employing more than one probe.

Технические детали

Технический комитет: ISO/TC 135/SC 3 - Ultrasonic testing
SKU: ISO 16811:2012

Abstract

Overview

ISO 16811:2012 - "Non‑destructive testing - Ultrasonic testing - Sensitivity and range setting" defines general rules for setting the timebase range and sensitivity (gain) of a manually operated ultrasonic flaw detector with A‑scan display. The goal is reproducible measurement of reflector location and echo height using single contact probes (single or twin transducers). The standard excludes immersion techniques and multi‑probe methods.

Key topics and technical requirements

Scope and applicability
- Applies to contact single‑probe ultrasonic testing (straight and angle beam) with A‑scan displays.
- Excludes immersion technique and techniques using more than one probe.
Probe index and beam angle
- Procedures for determination of probe index and beam angle for flat and contoured probes, including mechanical and reference‑block techniques.
Timebase (range) setting
- Rules for setting timebase for straight‑beam and angle‑beam probes, multiple reflector and reference‑block techniques, and alternative settings for curved surfaces.
Sensitivity setting and echo height evaluation
- Methods for evaluating echo amplitude and setting gain: Distance Amplitude Curve (DAC) and Distance Gain Size (DGS) techniques.
- Consideration of impingement angle and preparation/use of reference blocks and DAC/DGS diagrams.
Probe contouring and geometry categories
- Defines five categories of test objects (plane, uniaxially curved, multi‑curved, circular solid, complex shapes).
- Rules for probe shoe contouring to ensure uniform contact and constant beam angle; includes quantitative condition for convex surfaces: D_obj

Overview

Key topics and technical requirements

Scope and applicability
- Applies to contact single‑probe ultrasonic testing (straight and angle beam) with A‑scan displays.
- Excludes immersion technique and techniques using more than one probe.
Probe index and beam angle
- Procedures for determination of probe index and beam angle for flat and contoured probes, including mechanical and reference‑block techniques.
Timebase (range) setting
- Rules for setting timebase for straight‑beam and angle‑beam probes, multiple reflector and reference‑block techniques, and alternative settings for curved surfaces.
Sensitivity setting and echo height evaluation
- Methods for evaluating echo amplitude and setting gain: Distance Amplitude Curve (DAC) and Distance Gain Size (DGS) techniques.
- Consideration of impingement angle and preparation/use of reference blocks and DAC/DGS diagrams.
Probe contouring and geometry categories
- Defines five categories of test objects (plane, uniaxially curved, multi‑curved, circular solid, complex shapes).
- Rules for probe shoe contouring to ensure uniform contact and constant beam angle; includes quantitative condition for convex surfaces: D_obj

ISO 16811:2012 PDF

Технические детали

Abstract

Overview

Key topics and technical requirements

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Abstract

Overview

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