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JB/T 12725-2016Non-destructive testing instruments - Automatic ultrasonic testing systems (English PDF)

无损检测仪器超声自动检测系统

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Issued by

MIIT

Level / Type

Industry · Recommended

Issue date

January 15, 2016

Implementation date

June 1, 2016

Scope

JB/T 12725-2016 is the English-translated version of 无损检测仪器超声自动检测系统.

JB/T 12725-2016 is a recommended machinery industry standard of China for automatic ultrasonic testing systems, a class of non-destructive testing instrument. It gives the terminology and definitions for the detection system, the general requirements, the reference test pieces and the test items and methods.

The systems covered are those used on tubes, bars and plate; systems for other similar objects may refer to the standard. Among the standards it quotes are GB/T 4162-2008, GB/T 5777-2008, GB/T 12604.1, GB/T 20737, GB/T 28297-2012 and JB/T 10061. It is filed under the Chinese classification N77 and ICS 19.100.

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Document preview — JB/T 12725-2016

National Standard of the People's Republic of China

ICS: 19.100

Issued by: Ministry of Industry and Information Technology of the People's Republic of China

1 Scope
2 Normative references
3 Terms and definitions
4 General requirements
5 Reference specimens
5.1 Reference specimens for the testing of pipes
5.2 Reference specimens for the testing of bars
5.3 Reference specimens for the testing of plates
6 Test items and methods
6.1 General requirements
6.2 Specified defect detection sensitivity
6.3 Difference in the detection sensitivity of the defects along the circumference of the pipe
6.4 Difference in the detection sensitivity of the defects on the inner and outer wall of the pipe
6.5 Missed detection rate
6.6 False alarm rate
6.7 Undetectable zone at the ends of the pipes and bars or along the edges of the plates
6.8 Difference in the sensitivity between channels
6.9 Signal to noise ratio at the specified defect detection sensitivity
6.10 Stability of the defect detection sensitivity
Figure 1 Diagram of the reference specimen for the overall performance test

What this standard covers

This standard specifies the terminology and definition of the ultrasonic automatic detection system (hereinafter referred to as the detection system), general requirements, reference test pieces, test items and methods. This standard applies to pipe, bar, sheet metal detection system, other similar objects of the detection system can refer to the implementation.

Document data

International classification (ICS): 19.100.

Chinese classification (CCS): N77.

Estimated length of the Chinese original: 8,886 words.

Standards quoted by this document

GB/T 4162-2008; GB/T 5777-2008; GB/T 12604.1; GB/T 20737; GB/T 28297-2012; JB/T 10061

3 Terms and definitions

4 General requirements

5 Reference specimens

6 Test items and methods

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

Referenced standards

Normative references

Similar standards

JB/T 13935-2020|JB/T 13937-2020|JB/T 11779-2014|JB/T 11604-2013|JB/T 11610-2013|JB/T 11276-2012

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