GB/T 5677-2018 Castings - Radiographic testing
1 Scope
This standard specifies the ordering instructions, classification of radiographic techniques, general requirements, radiography, radiograph evaluation, testing records and reports for radiography of castings by means of X- and gamma-ray techniques with film.
This standard is applicable to the radiographic testing of castings made from steel, copper and copper alloys, nickel and nickel alloys, aluminum and aluminum alloys, and titanium and titanium alloys, which are produced by various technological processes for casting. It can also serve as a reference for the radiographic testing of castings made from other metal materials.
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.
GB/T 9445 Non-destructive testing - Qualification and certification of NDT personnel (GB/T 9445-2015, ISO 9712: 2012, IDT)
GB/T 11533 Standard for logarithmic visual acuity charts
GB/T 12604.2 Non-destructive testing - Terminology - Terms used in radiographic testing (GB/T 12604.2-2005, ISO 5576: 1997, IDT)
GB 18871 Basic standards for protection against ionizing radiation and for the safety of radiation sources
GB/T 19348.1 Non-destructive testing - Industrial radiographic film - Part 1: Classification of film systems for industrial radiography (GB/T 19348.1-2014, ISO 11699-1: 2008, MOD)
GB/T 19348.2 Non-destructive testing - Industrial radiographic films - Part 2: Control of film processing by means of reference values (GB/T 19348.2-2003, ISO 11699-2: 1998, IDT)
GB/T 19802 Non-destructive testing - Industrial radiographic illuminators - Minimum requirements (GB/T 19802-2005, ISO 5580: 1985, IDT)
GB/T 23901.1 Non-destructive testing - Image quality of radiographs - Part 1: Image quality indicators (wire type) - Determination of image quality value (GB/T 23901.1-2009, ISO 19232-1: 2004, IDT)
GB/T 23901.2 Non-destructive testing - Image quality of radiographs -Part 2: Determination of the image quality value using step/hole-type image quality indicators (GB/T 23901.2-2009, ISO 19232-2: 2004, IDT)
GB/T 23910 Non-destructive testing - Metal intensifying screens for radiographic testing
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Ordering instructions
5 Classification of radiographic techniques
6 General requirements
7 Radiographic techniques
8 Radiograph evaluation
9 Testing records and report
Annex A (Informative) Structural changes between this standard and ISO 4993:2015
Annex B (Informative) Method for periodic calibration of optical densitometers
Annex C (Informative) Operation instructions of radiographic testing
Annex D (Informative) Determination of the minimum radiography times for round castings
Annex E (Normative) Calculation of focal spot size
