This standard specifies the requirements, test methods, inspection rules, marking, packaging, transport, and storage as well as contract content relating to magnesium and magnesium alloy scraps.
This standard is applicable to magnesium and magnesium alloy scraps from various production procedures and use.
2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments (excluding corrections) to, or revisions of, any of these publications do not apply to this standard. However parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition applies.
GB/T 13748 (all parts) Chemical analysis methods of magnesium and magnesium alloys
3 Terms and definitions
For the purposes of this standard, the following terms and definitions apply.
3.1
coatings
any surface layer except a natural oxide layer
Examples: oil, paint, metal coating.
3.2
contaminant
hazardous physical or chemical foreign matters contained in the returns
Examples: water, casting sand.
3.3
inserts
component consisting of metal or other materials which may be moulded into position or put into a finished product
Examples: bearing, screw thread insert.
3.4
returns
magnesium and magnesium alloy materials collected or recovered at various stages of fabrication
3.5
turnings
magnesium and magnesium alloy materials consisting of grains, chips, curls, strips, etc. resulting from machining or other operations
4 Requirements
Foreword i 1 Scope 2 Normative references 3 Terms and definitions 4 Requirements 5 Test methods 6 Inspection rules 7 Marking, packaging, transportation and storage 8 Contract content Annex A (Informative) Table on detailed classification and rating of magnesium and magnesium alloy scraps Annex B (Informative) Representation method of scrap class codes
Magnesium and magnesium alloy scraps
1 Scope
This standard specifies the requirements, test methods, inspection rules, marking, packaging, transport, and storage as well as contract content relating to magnesium and magnesium alloy scraps.
This standard is applicable to magnesium and magnesium alloy scraps from various production procedures and use.
2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments (excluding corrections) to, or revisions of, any of these publications do not apply to this standard. However parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition applies.
GB/T 13748 (all parts) Chemical analysis methods of magnesium and magnesium alloys
3 Terms and definitions
For the purposes of this standard, the following terms and definitions apply.
3.1
coatings
any surface layer except a natural oxide layer
Examples: oil, paint, metal coating.
3.2
contaminant
hazardous physical or chemical foreign matters contained in the returns
Examples: water, casting sand.
3.3
inserts
component consisting of metal or other materials which may be moulded into position or put into a finished product
Examples: bearing, screw thread insert.
3.4
returns
magnesium and magnesium alloy materials collected or recovered at various stages of fabrication
3.5
turnings
magnesium and magnesium alloy materials consisting of grains, chips, curls, strips, etc. resulting from machining or other operations
4 Requirements
Contents of GB/T 20926-2007
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Requirements
5 Test methods
6 Inspection rules
7 Marking, packaging, transportation and storage
8 Contract content
Annex A (Informative) Table on detailed classification and rating of magnesium and magnesium alloy scraps
Annex B (Informative) Representation method of scrap class codes
