ISO 9712 NDT certification

ISO 9712 NDT certification

ISO 9712 NDT Availability of Certification

1. Definition of sectors

1.1 Product Sectors

a) Metallic materials

  • castings (c) (ferrous and nonferrous materials);
  • forgings (f) (all types of forgings: ferrous and non-ferrous materials);
  • welds (w) (all types of welds, including soldering, for ferrous and non-ferrous materials);
  • tubes and pipes (tp) (seamless, welded, ferrous and non-ferrous materials, including flat products for the manufacturing of welded pipes);
  • wrought products (wp) except forgings (i.e. plates, bar, rods)

b) Composite materials

  • cement matrix composites (cc);
  • reinforced plastics, such as fibre–reinforced polymers (frp);
  • metal matrix composites (mmc);
  • ceramic matrix composites (cmc).

1.2  Industrial sectors

Industrial sectors combining a number of product sectors including all or some products or specified materials (i.e. ferrous and non-ferrous metals or non-metals like ceramics, plastics, and composites):

  • manufacturing (M);
  • pre- and in-service testing which includes manufacturing (S);
  • railway maintenance (R);
  • aerospace (A)

2.   Availability of Certification

2.1   General

When creating an industrial sector, the PNIC shall precisely define in its published documentation the scope of the new sector concerned in terms of product, object or item.

An individual certified in an industrial sector shall be regarded also as holding certification in the individual sectors from which the industrial sector is composed.

Sector certification may be available at all three levels of competence in all NDT methods or may be limited to particular methods or levels. However, arranged, the scope of certification shall be defined on the certificate.

For composite materials, the PNIC shall define the specific requirements when planning for conducting examination.

2.2   Product sectors

Current available for metallic materials: castings (c), forgings (f), welds (w), tubes and pipes (tp), wrought products (wp).

Multi product sectors shall includes (mps): (c), (f), (w), (tp), (wp)

2.3   Industrial sectors

Available for the sectors: Manufacturing (M); Pre- and In- service testing which includes manufacturing (S).

2.4  Table 1 - Sub-categories

Method-Technique Levels Sub-categories Product Sectors
MT 1, 2, 3 Yoke (c), (f), (w), (tp), (wp)
PT 1, 2, 3 B, C, D (including A) (c), (f), (w), (tp), (wp)
RT- FD, RT-F, RT-D 1, 2, 3 Radiation: X-Ray, Gamma-Ray.Material: Light, Dense (c), (f), (w), (tp), (wp)
RT-S 1, 2, 3 Radiation: X-Ray; Material: Light (c), (f), (w), (tp), (wp)
RT-FI, RT-DI, RT-FDI 2 Radiation: X-Ray, Gamma-Ray.Material: Light, Dense (c), (w)
UT 1, 2, 3 G.1, G.2, G.7, G.8, G.9 For (w)For (c), (f), (tp), (wp)
UT-G 2 Thickness Gauging -
UT-IRIS 1, 2, 3 - (tp)
UT-PA 1, 2 - (c), (f), (w), (tp), (wp)
UT-TOFD 1, 2 - (w) (tp)
VT 1, 2, 3 Direct; Remote (c), (f), (w), (tp), (wp)

Legends:

1) ET Method:

  • ECT-C: Eddy Current Testing – for conventional inspection
  • ECT-E: Eddy Current Testing – for tube inspection.
  • RFT: Remote Field Testing – for tube inspection.
  • ACFM: Alternating current field measurement.

2) MT Method:

  • Y: Yoke
  • B: Bench (including wrapped flexible cable)

3) PT Method:

  • Method A: Water-Washable Penetrant
  • Method B: Post-Emulsifiable, Lipophilic Penetrant
  • Method C: Solvent Removable Penetrant
  • Method D: Post-Emulsifiable, Hydrophilic Penetrant

4) RT Method:

  • RT-FD:  Film & Digital
  • RT-F:  Film
  • RT-D:  Digital
  • RT-S:  Radioscopy
  • RT-FDI:  Film & Digital image interpretation
  • RT-FI:  Film interpretation
  • RT-DI:  Digital image interpretation

5) UT Method:

  • UT-G: Thickness Gauging
  • UT-IRIS:  Internal Rotary Inspection System for tube inspection
  • UT-PA:  Phased Array
  • UT-TOFD: Time of flight diffraction

6) VT Method:

  • D:  Direct
  • R:  Remote

Categories for Ultrasonic Testing of welds

Category Form (mm) Thickness (mm) Type of weld
G.1 Plate t ≥ 8 SV, DV
G.2 Pipe OD: 50 - 500 t ≥ 8 SV
G.7 T/Y-joint t ≥ 8 SV or K
G.8 Nozzle joint t ≥ 8 SV or K
G.9 Node joint t ≥ 8 SV

Notes:       SV:      Single V bevel groove               DV: Double V bevel groove

                 K:        Double V bevel groove on one side

3. Minimum number and type of specimens for practical examination

Table 2 - Minimum number & type of specimens for the practical examination of Level 1 & 2

Product sectors Method & Level
MT/PT/RT/UT/VT - Level 1 & 2 RT1 RT2
Castings 2 2 2 + 12rs
Forgings 2 2 2 + 12rs
Welds 2 2 2 + 12rs
Tubes and pipes 2 2 2 + 12rs
Wrought products 2 2 2 + 12rs
Industrial sectors UT1 RT1 RT2
M or S with one product sector 2 2 2 + 12rs
M or S with more than one product sectors 3c/f w 2c w 2 c w + 24rs
  • Where the practical examination requires the testing of more than one specimen, the second or any subsequent specimens shall be different in character, e.g. in product form, material specification, shape, size, and discontinuity type, from those tested previously.
  • Where, after the number of specimens required, product sectors are indicated by appropriate letters, this means that specimens from these sectors shall be applied for the practical examination.
  • For radiographic examination, Level 1 and Level 2 candidates shall radiograph at least two volumes — except for Level 2 candidates having passed a Level 1 qualification examination, where at least one volume is to be radiographed.
  • Where a sector examination involves the testing of more than one product type, then the specimens tested shall be representative of all products or shall be selected at random by the examiner from the product range or materials which make up the sector.
  • A set of radiographs (12 or 24) shall be considered as one specimen.