Overview
ISO 6283:2017 - Refined nickel is an international standard that defines the designation and chemical composition of refined nickel grades. It specifies four commercial grades (NR9980, NR9990, NR9995, NR9997) and the minimum nickel content and maximum impurity limits for each grade. The standard also covers practical matters such as forms, sampling, analysis, packing, traceability and required documentation for deliveries.
Key topics and requirements
- Grade designations: NR9980, NR9990, NR9995, NR9997.
- Purity levels: Minimum nickel content is specified for each grade (for example NR9980 = 99.80% Ni, NR9997 = 99.97% Ni).
- Impurity limits: Maximum permissible levels are given for common impurities (Ag, Al, As, Bi, C, Co, Cu, Fe, Mn, N, P, Pb, S, Sb, Se, Si, Sn, Te, Tl, Zn, etc.). Purchaser and supplier may agree tighter or additional element limits when required.
- Forms: Typical physical forms include briquettes, cathodes, granules, pellets, powders, squares and shot. Availability depends on refining process.
- Sampling and analysis: Sampling at refineries follows routine procedures; analysis for certificates of conformity may use recognized wet chemistry or instrumental techniques. In disputes, an appropriate international standard method applies.
- Packing and traceability: Material must be securely packaged to avoid contamination and each lot or package must be traceable to refinery batch/lot numbers.
- Documentation: Purchase orders should reference ISO 6283:2017, specify the grade and form, and any additional requirements. Suppliers must supply a certificate of conformity with traceability details.
Applications and who uses it
ISO 6283:2017 is used by:
- Nickel producers and refiners - to classify products, prepare certificates of conformity, and set production/packaging practices.
- Metal traders and distributors - to verify grade and traceability for commercial shipments.
- Manufacturers and end users - in electroplating, specialty alloys, battery components, chemical catalysts and other nickel-dependent applications where controlled purity is critical.
- Quality, procurement and regulatory teams - to ensure incoming material meets specified chemical composition and traceability requirements.
Using ISO 6283 helps ensure consistent refined nickel quality, reduces disputes over composition, and supports regulatory and quality-control documentation.
Related standards
- ISO 6372 - Nickel and nickel alloys: terms and definitions (referenced for definitions and form terminology).
- Documents and methods agreed between purchaser and supplier or relevant international analytical standards for dispute resolution.
Keywords: ISO 6283, refined nickel, nickel grades, chemical composition, nickel purity, sampling, analysis, traceability, certificate of conformity.
