1 Scope
This part of GB/T 19799 specifies requirements for the dimensions, material and manufacture of a steel block for calibrating ultrasonic test equipment used in manual testing.
2 Normative References
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 5577 Non-destructive testing - Ultrasonic inspection -Vocabulary
EN 1330-4 Non-destructive testing - Terminology - Part 4: Terms used in ultrasonic testing
EN 10025-2 Hot rolled products of structural steels - Part 2: Technical delivery conditions for non-alloy structural steels
3 Terms and Definitions
For the purposes of this document, the terms and definitions given in ISO 5577 and EN 1330-4 apply.
4 Manufacture
4.1 Steel
Blocks shall be manufactured from steel grade S355J0, specified in EN 10025-2, or from steel of an equivalent grade.
Foreword
1 Scope
2 Normative References
3 Terms and Definitions
4 Manufacture
5 Velocities
6 Marking
7 Declaration of Conformity
8 Possible Modifications to Block No.1
9 Existing Blocks
Annex A (Normative) Determination of Velocities
