GB/T 25777-2010 Preparation methods of deposited metal specimens for chemical analysis
1 Scope
This standard specifies the test base metal, specimen preparation, deposited metal size and sampling for the preparation of deposited metal specimens for chemical analysis.
This standard applies to preparation of deposited metal specimens for chemical analysis, including covered electrodes, wire electrodes for gas shielded metal arc welding, flux-cored electrodes for gas shielded arc metal welding and for self-shielded metal arc welding, flux-cored rods for gas tungsten arc welding, and wire-flux combinations for submerged arc welding.
This standard is applicable to welding consumables such as steels, nickel and nickel alloys and copper and copper alloys.
2 Normative references
The following standards contain provisions which, through reference in this text, constitute provisions of this standard. For dated reference, subsequent amendments to (excluding corrigendum), or revisions of, any of these publications do not apply. However, the parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards. For undated references, the latest edition of the normative document referred to applies.
GB/T 16672-1996 Welds-Working positions-Definitions of angles of slope and rotation (idt ISO 6947:1990)
ISO 14175 Welding consumables - Shielding gases for arc welding and cutting
3 Base metal
Foreword I 1 Scope 2 Normative references 3 Base metal 4 Preparation of specimens 5 Size of deposited metal 6 Sampling
