DL/T 694-2012
The technical guide of ultrasonic inspection for high-temperature tight bolts (English Version)
- Standard No.
- DL/T 694-2012
- Language
- Chinese, Available in English version
- Release Date
- 2012
- Published By
- Professional Standard - Electricity
- Latest
- DL/T 694-2012
- Replace
- DL/T 694-1999
- Scope
- This standard specifies the ultrasonic testing process methods and evaluation standards for high-temperature fastening bolts. This standard is applicable to the ultrasonic testing of high-temperature fastening bolts with a diameter of not less than M32 such as cylinders, steam valves, various valves and steam pipe flanges of thermal power generating units. Ultrasonic testing of other fastening bolts can also be carried out by reference.
DL/T 694-2012 Referenced Document
- DL/T 675 Examination codes for qualification of non-destructive testing personnel of electric power industry*， 2014-10-15 Update
- GB/T 11259 Non-destructive testing.Practice for fabrication and control of steel reference blocks used in ultrasonic testing*， 2015-10-09 Update
- JB/T 10061 Commonly used specification for A-mode ultrasonic flaw detector using pulse echo technique
- JB/T 10062 Testing methods for performance of probes used in ultrasonic flaw detection
- JB/T 8428 General specification for non-destructive testing ultrasonic test block*， 2015-10-01 Update
- JB/T 9214 Non-destructive testing.Test methods for evaluating performance characteristics of A-scan pulse-echo ultrasonic testing systems
DL/T 694-2012 history
- 2012 DL/T 694-2012 The technical guide of ultrasonic inspection for high-temperature tight bolts
- 2000 DL/T 694-1999 The technical guide of ultrasonic inspection for high-temperature tight bolts
