1 Scope
1.1 This standard applies when evaluating performance characteristics of ultrasonic testing systems at test field. The ultrasonic testing systems refer to equipment used in the test, including A-scan pulse-echo ultrasonic tester, ultrasonic probe and high frequency cable connected therewith. In the test, only standard block specified in this standard is used instead of any electronic instruments.
1.2 This standard only specifies test method for evaluating performance characteristics of ultrasonic testing systems, but does not propose performance index or acceptance condition. Where necessary, the supplier and the purchaser may make an antecedent negotiation and specify the minimum performance index which the ultrasonic testing systems shall reach when the product is accepted.
1.3 This standard is only applicable to manual testing but not to automatic ultrasonic testing.
1.4 This standard is only applicable to the system including ordinary contact ultrasonic normal probe or angled probe but not to the systems including ultrasonic probes of other types (such as bicrystal type and water immersion type).
2 Normative References
The following documents contain provisions which, through reference in this standard, constitute provisions of this standard. For dated references, subsequent amendments (excluding corrections) to, or revisions of, any of these publications do not apply. However, all parties coming to an agreement according to this standard are encouraged to study whether the latest edition of these documents is applicable. For undated references, the latest edition of the normative documents applies.
GB/T 12604.1 Non-destructive Testing—Terminology—Terms Used in Ultrasonic Testing (GB/T 12604.1-2005, ISO 5577: 2000, DT)
GB/T 19799.1-2005 Non-destructive Testing—Ultrasonic Testing—Calibration Block No.1 (ISO 2400: 1972, DT)
GB/T 20737 Non-destructive Testing—General Terms and Definitions (GB/T 20737-2006, ISO/TS 18173: 2005, IDT)
JB/T 8428-2006 Non-destructive Testing—Blocks for Ultrasonic Testing
3 Terms and Definitions
For the purpose of this standard, the terms and definitions given in GB/T 12604.1 and GB/T 20737 apply.
Foreword i
1 Scope
2 Normative References
3 Terms and Definitions
4 Items under Test
5 Test Methods for Surplus Sensitivity of Normal Probe
6 Test Methods for Vertical Linearity of Normal Probe
7 Test Methods for Horizontal Linearity
8 Test Methods for Resolution of Normal Probe
9 Test Method for Dead Zone of Normal Probe
10 Test Methods for Point of Incidence of Angled Probe
11 Test Methods for Angle of Refraction or K Value of Angled Probe
12 Test Methods for Resolution of Angled Probe
13 Test Methods for Surplus Sensitivity of Angled Probe
14 Test Report
Annex A (Normative) Standard Block
Figure 1 Bottom Echo Indication in Horizontal Linearity Test
Figure 2 Resolution Test for Normal Probe and Echo Indication
Figure 3 Test of Point of Incidence of Angled Probe
Figure 4 Test of Angle of Refraction or K Value of Angled Probe
Figure 5 Echo Indication in Test of Angled probe Resolution
Figure A.1 DB-P Block
Figure A.2 DZ-I Block
Table 1 Vertical Linearity Test Record
Table A.1 DB-P Block Dimension
