Procedure for MPT
-
Upload
saut-maruli-tua-samosir -
Category
Documents
-
view
216 -
download
0
Transcript of Procedure for MPT
-
8/12/2019 Procedure for MPT
1/4
LARSEN & TOUBRO LIMITED
PAGE NO.- 1 OF 4
DATE:-01.11.2007MSQ (EPCC-1) UPGADATION
PROJECT REV.NO.- 00
MAGNETIC PARTICLE TEST PROCEDURE NO.-
LT/MSQ/P/MPT/008
CONTENTS
SCOPE
REFERENCE DOCUMENT
GENERAL
QUALIFICATION OF PERSONNEL
EQUIPMENT
PROCEDURE
INTERPRETATION
POST CLEANING
DOCUMNTATION
SAFETY
APPROVED BY L & T REVIEED ! APPROVED BY JACOBS
-
8/12/2019 Procedure for MPT
2/4
LARSEN & TOUBRO LIMITED
PAGE NO.- 2 OF 4
DATE:-01.11.2007MSQ (EPCC-1) UPGADATION
PROJECT REV.NO.- 00
MAGNETIC PARTICLE TEST PROCEDURE NO.-
LT/MSQ/P/MPT/008
1.0 SCOPE
This procedure describes the method for Magnetic Particle Testing of ferromagnetic materials and
welds, for piping construction work of MS !p gradation Pro"ect, #O$% Panipat&
2.0 RE"ERENCE DOCUMENT
(SM) *oiler + Pressure essels code Section -. /ondestructie testing
(SM) *'1&' $hemical plant and petroleum refiner0 piping&
(S/T ecommended practice . S/TT$(1
#.0 GENERAL
'&1 Magnetic Particle Testing shall be applied to detect surface + subsurface discontinuities of
ferrous material&
'&2 *efore Magnetic Particle testing, surface to be tested shall be cleaned, to allow the magnetic
particles moement according to flow and direction of magnetic flu3&
4.0 QUALI"ICATION O" PERSONNEL
&1 #ndiiduals performing Magnetic Particle Testing shall be trained and 5ualified (S/T leel## in
accordance with S/TT$1( or e5uialent&
&2 %eel # Person ma0 perform the testing under %eel ## 5ualified persons6 instruction and
superision&
$.0 EQUIPMENTS
&1 !nless otherwise specified, 0oke t0pe magnet shall be used& This method shall be applied to detect
discontinuities that are opened to the surface of the part to be e3amined&
&2 The ($ electro magnetic 0oke should hae the capacit0 to lift 17 lbs at the ma3imum pole spacing that
will be used& For 8$ or permanent magnetic 0oke shall hae a lifting power of 47 lbs at the
ma3imum pole spacing to be used&
&' The Ferro magnetic particles used in the e3amination medium can be either wet or dr0&
APPROVED BY L & T REVIEED ! APPROVED BY JACOBS
-
8/12/2019 Procedure for MPT
3/4
LARSEN & TOUBRO LIMITED
PAGE NO.- ' OF 4
DATE:-01.11.2007MSQ (EPCC-1) UPGADATION
PROJECT REV.NO.- 00
MAGNETIC PARTICLE TEST PROCEDURE NO.-
LT/MSQ/P/MPT/008
&4 9hen wet particle is used, application of white back ground paint is preferred to obtain contrast
between the magnetic particle and surface being e3amined& The colour of the magnetic particle
shall be sufficientl0 different than the e3amination surface& The magneti:ing current shall be turned
on after the particles hae been applied& Flow of particles shall stop with the application of current&
9et particles applied from aerosol spra0 cans ma0 be applied before and;or after magneti:ing
current is applied&
& #f prod t0pe e5uipment is specified, test shall be performed with the prod spacing of
-
8/12/2019 Procedure for MPT
4/4
LARSEN & TOUBRO LIMITED
PAGE NO.- 4 OF 4
DATE:-01.11.2007MSQ (EPCC-1) UPGADATION
PROJECT REV.NO.- 00
MAGNETIC PARTICLE TEST PROCEDURE NO.-
LT/MSQ/P/MPT/008
7.0 INTERPRETATION