ISO 19835:2018 PDF
Non-destructive testing — Acoustic emission testing — Steel structures of overhead travelling cranes and portal bridge cranes
Non-destructive testing — Acoustic emission testing — Steel structures of overhead travelling cranes and portal bridge cranes
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 14
- Дата публикации:
- 29 мая 2018 г.
- Издание:
- ISO IS 19835 edition 1 version 1
- ICS:
- 19.100
This document describes the acoustic emission (AE) testing technique used to perform structural integrity evaluation on steel structures of overhead travelling cranes and portal bridge cranes. This document applies to the testing of steel structures of in-service overhead travelling cranes and portal bridge cranes. Testing of other kinds of cranes can refer this document. This testing method is not intended to be an alone NDT standard method for the evaluation of the structural integrity of overhead travelling cranes and portal bridge cranes. Other NDT methods are used to verify and supplement the AT results. This document does not establish evaluation criteria.
Abstract
Overview - ISO 19835:2018 (Acoustic emission testing for crane steel structures)
ISO 19835:2018 specifies the use of acoustic emission (AE) testing as a non-destructive testing (NDT) technique for evaluating the structural integrity of steel structures in in-service overhead travelling cranes and portal bridge cranes. The standard describes equipment, on-site operation, data acquisition and documentation practices for AE testing. It clarifies that AE testing is intended as a component of an NDT programme - not as the sole method - and does not establish acceptance/evaluation criteria.
Key topics and technical requirements
- Scope and purpose
- AE testing during the whole loading cycle (loading, load holding, unloading) to detect and locate AE sources in parent metal and welds.
- Applicable to in-service overhead travelling and portal bridge cranes; other crane types may reference the standard.
- Personnel
- Testing should be conducted by competent staff; compliance with ISO 9712 or equivalent is recommended.
- AE equipment
- Sensors: recommended frequency range 100–400 kHz; minimum sensitivity ≥ 60 dB (referred to 1 V/(m·s‑1)); stability within ±3 dB over operating range. Pencil‑lead break (0.5 mm, 2H, 50 mm) should produce ≥ 95 dB AE.
- Preamplifiers: circuit noise RMS
Технические детали
- Технический комитет
- ISO/TC 135/SC 9 - Acoustic emission testing
- SKU
- ISO 19835:2018
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