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AFIAP

Requalification of Pressure Equipment

Using the AFIAP Acoustic Emission Group Guidelines

By M. Cherfaoui, M. Mediouni, JN. Simier,JL. Baoudour

Contact : mohammed.cherfaoui@cetim.fr

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AFIAP

PED 97/23/CE

- construction- testing- certification

PRACTICESHARMONIZATION

- initial qualification- requalification (re-certification)

USE OF NEW APPROACH

SPECIFICMETHODES

A change introduced in the European PE rules

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AFIAP

Appendix E

Requirements for initial qualification

EUROPEAN

AppendixesIA9 & IA10

FRENCH

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AFIAPRequirements for In-service

inspection

• periodical inspections

Requalification• internal & external inspections before hydrotesting• verification of security devices• hydrotesting

French enforcement order of March 2000

every 18 to 40 months

every 10 years

• covered by the user’s inspection program• requires an approval from a third part inspection body

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AFIAPProposed NDE

alternative methods

Visual camera

Multi-element ET

PulsedET

Magnetic FluxLeakeage

MT guided waves

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AFIAP

Multi-element UT

UT crawler

TOFD

UT guided waves

Acoustic Emission

Proposed NDE alternative methods

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AFIAP

DM-T/P 26290 du 20 juillet 1993, relative à l’application de la réglementation desréservoirs sous talus destinés au stockage de gaz inflammables liquéfiés (Concerning the application of the regulations to mounded tanks intended for storageof liquefied flammable gases)

DM-T/P 29369 du 30 mai 1997, relatives aux modalités de suivi en service des stockages aériens de gaz inflammables liquéfiés sous pression revêtus d’une protection « Ignifuge » (concerning in-service monitoring of above ground tanks intended for the storage of liquefied flammable gases, provided with a « flameretardant » coating)

DM-T/P 32255 du 26 septembre 2002, décision relative à certains équipements sous pression – remplacement de l’épreuve hydraulique de certains équipements sous pression par un essai sous pression avec contrôle par émission acoustique (award concerning some pressure equipment – replacement of hydraulic proof test for some pressure equipment by a pressure test combined with AE testing)

Limited recognition of AE until 2002

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AFIAPNew task for AFIAP

• founded in 1976

• deals with the technical and regulatory aspects of PE

• 403 members

• composed of different work groups : EPERC committee, “GEA” (AEG), ...

The French Association of Pressure Equipment Engineers

www.afiap.org

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AFIAP

A

About AEG

ECW

chairman

secretary

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AFIAP2002

Good practice Guidelines Started in 1998 2004

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AFIAPGood practice Guidelines

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AFIAP3 category AE source classification mode

• category 1 : non significant

• category 2 : investigations are recommended

• category 3 : critical -investigations are mandatory

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AFIAP

20 mm

Zone 2 :l = 5 mmManque de fusion

60 mm

Zone 1 :l = 40 mm

6 mm

Micro-inclusions

Piquage supérieur

Fond supérieur

Manque de fusion en bord de chanfraincôté piquage

experiencedcategories 1 & 2

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AFIAP

great volume tanks

HP Storage tanks

Insulated Storage tanks

Storagecylinders

Type of equipment

spherical tanks

Underground storage tanks

Covered by an annex

Autoclaves

Reactors

Paper drums

columns

Composite piping

in process

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AFIAP

Welding + NDE +wave guide installation

& hydrotest with AE

CONSTRUCTION PHASE

Insulation & commissioning

Case covered

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AFIAP

Sensor mountinginsulated section

indirect access to the vessel

Sensor mountingbottom section

IN-SERVICE INSPECTION

Case covered

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AFIAPTo conclude

• has been recognized in France in order to replace hydrotesting by in-service AE testing (DM-T/P 32970)

• helps customer and authorities be confident about the way AE is conducted & how results are obtained

• needs to be completed new type of equipment

• needs continuous feed back from REX critics are very welcome

the AFIAP AE good practice guideline :

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AFIAP

Thank you for your kind attention !