-
TianDa
QC PROCEDURES
Doc. No.:
HTD/NDE-05
Edition:
2011
Revision:
1
Page:
1
of 9
Shop Construction and
Field Site Assembly of Pressure Vessels and Parts
to
ASME Boiler and Pressure Vessel Code
Section VIII Division 1 Conformance
Liquid Penetrant Examination
Procedure
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Rev. No.
Prepared By
Date
Reviewed & Approved By
Date
TianDa
QC
PROCEDURES
Doc.
No.:
HTD/NDE-05
Edition:
2011
Revision:
1
Page:
2 of 9
Shop Construction and Field Site
Assembly of Pressure Vessels and Parts to
ASME Boiler and Pressure Vessel Code
Section VIII Division 1 Conformance
Liquid Penetrant Examination
Procedure
Statement of Demonstration
Certification
We hereby certify that
the Liquid Penetrant Examination Procedure
(HTD/NDE-05, 2011/
Rev.0) has been
demonstrated on a test specimen with known defects
to the satisfaction of the AI
according
to ASME Code Section V
, T-150 as
required by the Appendix 8 of Section VIII, Div.
1.
Specimen No.:
Demonstration
Report No.:
Certified by NDT Level III:
Date:
AI:
Date:
TianDa
QC
PROCEDURES
Doc.
No.:
HTD/NDE-05
Edition:
2011
Revision:
1
Page:
3 of 9
Shop Construction and Field Site
Assembly of Pressure Vessels and Parts to
ASME Boiler and Pressure Vessel Code
Section VIII Division 1 Conformance
Liquid Penetrant Examination
Procedure
1.
1.1
General
This
procedure
is
applied
to
dye
liquid
penetrant
examination
of
metal
material
and
weldment for ASME Code
items.
This procedure is
only suitable for detecting the defects that are
open to the surface of
material or
weldment.
This procedure shall be
certified by demonstration to the satisfaction of
the AI prior to
implementation.
Personnel
The personnel
engaged in the penetrant examination shall be
qualified and certified in
accordance
with the requirement of the TianDa
’s
“
Written Practice for NDE Personnel
Training, Qualification &
Certification
”
( HTD/NDE-01
).
Written Procedure Requirements
Requirements
Liquid
penetrant
examination
shall
be
performed
in
accordance
with
the
written
procedure
(and
the
instruction
cards
as
supplementary
means),
which
shall,
as
a
minimum,
contain
the
requirements
listed
in
Table
1.
The
written
procedure
shall
establish a single value, or range of
values, for each requirement.
1.2
1.3
2.
2.1
3.
3.1
3.2
Procedure
Qualification
When
procedure
qualification
is
specified,
a
change
of
requirement
in
Table
1
identified
as
an
essential
variable
from
the
specified
value,
or
range
of
values,
shall
require requalification of the written
procedure. A change of a requirement identified as
nonessential
variable
from
the
specified
value,
or
range
of
values,
does
not
require
requalification
of
the
written
procedure.
All
changes
of
essential
or
nonessential
variables
from
the
value,
or
range
of
values,
specified
by
the
written
procedure
shall
require revision, or an addendum to,
the written procedure.
TianDa
QC PROCEDURES
Doc. No.:
HTD/NDE-05
Edition:
2011
Revision:
1
Page:
4
of 9
Shop Construction and
Field Site Assembly of Pressure Vessels and Parts
to
ASME Boiler and Pressure Vessel Code
Section VIII Division 1 Conformance
Liquid Penetrant Examination
Procedure
Table
1 Requirements of Liquid Penetrant Examination
Procedure
Essential
Nonessential
Notes
*
No.
Requirement
Variable
Variable
Identification of
and any change in type or
【
1
】
family
group
of
penetrant
materials
●
4.2
including developers, emulsifiers, etc
【
2
】
Surface preparation(finishing and
cleaning,
●
5.2
including type of
cleaning solvent)
【
3
】
Method of applying penetrant
●
5.4.1
of
removing
excess
surface
【
4
】
Method
penetrant
【
5
】
Method of applying developer
and
maximum
time
periods
【
6
】
Minimum
between steps and
drying aids
【
7
】
Decrease in penetrant dwell time
in
developer
【
8
】
Increase
(Interpretation
time)
【
9
】
Minimum light intensity
dwell
time
●
●
●
●
●
●
●
●
○
○
○
5.5
5.6
5.4.3
5.4.3
5.7.1
5.7.3
5.4.2
1.3
3.2
2.1
1.1
5.2
Table 3
5.8
Surface temperature
outside 41°
F to 125°
F
【
10
】
(5
℃
to
52
℃
) or as previously
qualified
【
11
】
Performance demonstration, when
required
【
12
】
Personnel qualification requirements
Materials,
shapes,
or
sizes
to
be
examined
【
13
】
and the extent of examination
【
14
】
Post examination cleaning technique
* The related clause stipulating the
requirement.
4.
4.1
Penetrant
Materials
The
penetrant
materials
are
intended
to
include
all
penetrants,
solvents
or
cleaning
agents, developers, etc, used in the
examination process.
The
liquid
penetrant
examination
materials
shall
be
designated
and
recommended
as
shown
in
Table
2.
The
materials
used
for
examination
shall
be
the
same
type.
Intermixing of
penetrant materials from different families or
different manufacturers is
not
permitted.
4.2