GB/T 32259-2015Non-destructive testing of welds -- Visual testing of fusion-welded joints (English PDF)

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009.

This standard, through the re-drafting method, modifies and adopts the ISO

1 Scope

This standard applies to the visual inspection of fusion-welds of metal materials;

AND it is also used for visual inspection of joints before welding.

2 Normative references

The following documents are essential to the application of this document. For

the dated documents, only the versions with the dates indicated are applicable

to this document; for the undated documents, only the latest version (including

all the amendments) are applicable to this Standard.

GB/T 9445 Non-destructive testing – Qualification and certification of NDT

personnel (GB/T 9445-2008, ISO 9712.2005, IDT)

GB/T 19418 Arc welded joints in steel – Guidance on quality levels for

imperfections (GB/T 19418-2003, ISO 5817. 1992, IDT)

GB/T 22087 Arc-welded joints in aluminum and its alloys – Guidance on

quality level for imperfection (GB/T 22087-2008, ISO 10042.2005, IDT)

3 Test conditions and equipment

Surface light illuminance shall be at least 350 lx, BUT the recommended light

illuminance is 500 lx.

For direct visual inspection, within 600 mm of the surface to be tested, it shall

provide adequate viewing inspection space for the human eye, AND the

inspection angle shall be not less than 30° (see Figure 1).

The formed weld inspection shall determine whether the weld complies with the

application or product standard requirements or other mutually agreed

acceptance conditions, such as GB/T 19418 or GB/T 22087. Formed welds

shall be inspected at least in accordance with the requirements given in 5.4.2

to 5.4.5.

6 Test records

When it is required to inspect the records, the test report shall contain at least

the following information.

a) The name of the component manufacturer;

b) The name of the party to be tested, if different from item a);

c) The identification of the test object;

d) Material;

e) Joint type;

f) Material thickness;

g) Welding process;

h) Acceptance conditions;

i) Imperfections beyond the acceptance conditions and their location;

j) Test range referring to the drawing requirements;

k) The testing equipment used;

l) The inspection results referring to the acceptance conditions;

m) Name and date of inspection.

As for the welds subjected to the inspection AND qualified, it shall make mark

or identification at the appropriate location.

If it requires the permanent visual inspection record of the weld to be tested, it

is advisable to take photographs OR draw accurate sketches, or both, of any

imperfections.

References

[1] GB/T 20968 Non-destructive testing – Aids to visual inspection – Selection

of low-power magnifiers

[2] ISO 3599 Vernier callipers reading to 0.1 and 0.05 mm

[3] ISO 17635 Non-destructive testing of welds – General rules for fusion-welds

in metallic materials

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