GB/T 3323.1-2019Non-destructive testing of welds -- Radiographic testing -- Part 1: X-and gamma-ray techniques with film (English PDF)

Foreword

GB/T 3323 "Non-destructive testing of welds - Radiographic testing" is divided

into the following two parts.

- Part 1.X-and gamma-ray techniques with film;

- Part 2.X-and gamma-ray techniques with digital detectors.

This part is Part 1 of GB/T 3323.

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

This part replaces GB/T 3323-2005 "Radiographic examination of fusion

welded joints in metallic materials". Compared with GB/T 3323-2005, the main

technical changes are as follows.

- MODIFY the scope (see Chapter 1; Chapter 1 of the 2005 edition);

- MODIFY the normative references (see Chapter 2; Chapter 2 of the 2005

edition);

- MODIFY some term definitions and symbols (see Chapter 3; Chapter 3 of

the 2005 edition);

- ADD the symbols and abbreviations (see Chapter 4);

- MODIFY the minimum image quality requirements (see 6.9; 5.9 of the 2005

edition);

- MODIFY the personnel qualifications (see 6.10; 5.10 of the 2005 edition);

- MODIFY the ride-on fillet welds into the seated pipe seat welds (see Figure

4, Figure 7, Figure 10, Figure 4, Figure 7, Figure 10 of the 2005 edition);

- MODIFY the X-ray machine, which has a tube voltage below 1000 kV (see

7.2.1; 6.2.1 of the 2005 edition);

- MODIFY the Appendix A, changing the linear image quality meter into a

wire image quality meter; changing the image quality count value into an

image quality value (see Appendix A; Appendix A of the 2005 edition);

- DELETE Appendix D ~ Appendix E of the 2005 edition.

This part uses the redrafting method, to modify and adopt ISO 17636-1.2013

"Non-destructive testing of welds - Radiographic testing - Part 1.X-and gamma-

ray techniques with film".

Compared with ISO 17636-1.2013, the structure of this part is slightly adjusted,

that is, 6.9 will be adjusted to 6.7, the others will be postponed; the order of

Appendix A and Appendix B has been adjusted.

Compared with ISO 17636-1.2013, the main technical differences and reasons

for this part are as follows.

- Regarding normative references, this part has made adjustments with

technical differences, to adapt to China's technical conditions. The

adjustments are reflected in Chapter 2 "Normative references". The specific

adjustments are as follows.

* ADD the reference to GB/T 19943, which identically adopts the

international standard ISO 5579 (see Chapter 1);

* USE the GB/T 12604.2, which identically adopts the international

standard, to replace ISO 5576 (see Chapter 3);

* USE the GB/T 23901.1, which identically adopts the international

standard, to replace ISO 19232-1 (see 6.8);

* USE the GB/T 23901.2, which identically adopts the international

standard, to replace ISO 19232-2 (see 6.8);

* USE the GB/T 23901.4, which identically adopts the international

standard, to replace ISO 19232-4 (see 6.7);

*USE the GB/T 19802, which identically adopts the international standard,

to replace ISO 5580 (see 6.9, 7.8, 7.10);

*USE the GB/T 9445, which identically adopts the international standard,

to replace ISO 9712 (see 6.10);

*USE the GB/T 19348.1, which modifies and adopts the international

standard, to replace ISO 11699-1 (see 7.3, Table 3, Table 4);

*USE the GB/T 25758 (all parts), which identically adopts the international

standard, to replace EN 12543.1~ EN 12543.5 (see 7.6);

*USE the GB/T 19348.2 to replace ISO 11699-2 (see 7.9).

This part also made the following editorial changes.

- DELETE ISO 5579 and ISO 19232-3 from the "Normative references".

This part was proposed by AND shall be under the jurisdiction of the National

Welding Standardization Technical Committee (SAC/TC 55).

Drafting organizations of this part. Shanghai Institute of Materials, Shanghai

Qinhe Welding Technology Development Co., Ltd., Wuxi Rilian Technology Co.,

Ltd., Shanghai Aerospace Power Technology Engineering Co., Ltd., China

Guangdong Nuclear Engineering Co., Ltd., Hubei Sanjiang Aerospace Jiangbei

Mechanical Engineering Co., Ltd., Tianjin Municipal Special Equipment

Supervision and Inspection Technology Research Institute, Xiamen Special

Equipment Inspection and Testing Institute, Zhejiang Youerte Testing

Technology Co., Ltd., Shanghai Baoye Engineering Technology Co., Ltd.,

Offshore Oil Engineering Offshore Engineering Technology Service Co., Ltd.,

Hangzhou Yineng Electric Power Technology Co., Ltd., Harbin Welding

Research Institute Co., Ltd., Jinyun Kelier Testing Equipment Co., Ltd.

1 Scope

This part of GB/T 3323 specifies the radiographic testing technology for fusion

welding of metallic materials.

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) is applicable to this standard.

3 Terms and definitions

The terms and definitions as defined in GB/T 12604.2, as well as the following

terms and definitions, apply to this document.

4 Symbols and abbreviations

The symbols and abbreviations, which are given in Table 1, apply to this

document.

5 Grading of radiographic testing technology

Radiographic testing technology is divided into two grades.

6 General rules

The surface of the workpiece should be permanently marked, to ensure the

accurate positioning of each film (for example. zero point, direction, marking,

size, etc.).

In the radiographic testing report, it shall indicate the type and model of the

image quality indicator used AND the achieved image quality value.

7 Recommended radiographic testing technology

The ray source is on one side of the tested workpiece; the film is on the other

side, as shown in Figure 1.

The ray source is located at the inner eccentricity of the tested workpiece; the

film is located on the outer side, as shown in Figure 8 ~ Figure 10.

8 Test report

After the radiographic testing, it shall record the test results and related test

parameters in detail; fill the test report, so that the test results can be inquired,

under any circumstances.

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