EN ISO 16148:2016

European foreword
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Operational principles
5 Personnel qualification
6 Special considerations to ensure valid tests
7 Acoustic emission examination equipment
8 Acoustic emission examination calibration and
   equipment verification
9 Overall procedure
10 Real-time evaluation criteria
11 AT test report
12 Follow-up ultrasonic examination
Annex A (normative) - Ultrasonic examination (UT)
        follow-up to acoustic emission examination (AT)
Annex B (normative) - AT equipment specifications
Annex C (normative) - Example instrument settings,
        examination methods and rejection criteria for MAE
Annex D (informative) - Alternative method for source location
Annex E (informative) - Distance amplitude correction
        procedures
Bibliography

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.