GB/T 9967-2010 English PDF (GBT9967-2010)

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GB/T 9967-2010: Neodymium metal
GB/T 9967-2010
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 77.120.99
H 65
Replacing GB/T 9967-2001
Neodymium Metal
ISSUED ON: JANUARY 14, 2011
IMPLEMENTED ON: NOVEMBER 1, 2011
Issued by: General Administration of Quality Supervision, Inspection and
Quarantine;
Standardization Administration of the People’s Republic of China.
Table of Contents
Foreword ... 3 
1 Scope ... 4 
2 Normative References ... 4 
3 Requirements ... 4 
4 Test Methods ... 5 
5 Inspection Rules ... 6 
6 Marking, Packaging, Transportation, Storage and Quality Certificate ... 7 
Neodymium Metal
1 Scope
This Standard specifies the requirements, test methods, inspection rules, marking, packaging,
transportation and storage of neodymium metal.
This Standard is applicable to neodymium metal, which is produced through molten salt
electrolysis method using neodymium oxide as the raw material, and is mainly used as a raw
material for permanent magnetic materials, for example, neodymium iron boron, and an
additive for rare earth functional materials, for example, rare earth magnesium alloys.
2 Normative References
The following documents are indispensable to the application of this document. In terms of
references with a specified date, only versions with a specified date are applicable to this
document. In terms of references without a specified date, the latest version (including all the
modifications) is applicable to this document.
GB/T 8170 Rules of Rounding off for Numerical Values and Expression and Judgement of
Limiting Values
GB/T 12690 (all parts) Chemical Analysis Methods for Non-rare Earth Impurities of Rare
Earth Metals and Their Oxides
GB/T 14635 Rare Earth Metals and Their Compounds - Determination of Total Rare Earth
Content
GB/T 18115.4 Chemical Analysis Methods of Rare Earth Impurities in Rare Earth Metals
and Their Oxides - Part 4: Determination of Lanthanum, Cerium, Praseodymium,
Samarium, Europium, Gadolinium, Terbium, Dysprosium, Holmium, Erbium, Thulium,
Ytterbium, Lutetium and Yttrium Contents
3 Requirements
3.1 Chemical Composition
The chemical composition of the product shall comply with the stipulations of Table 1. If the
demand-side has special requirements for the product, the demand-side and the supply-side may
have further negotiations.
a lid and seal it for storage.
5.5 Determination of Inspection Results
5.5.1 When the results of the arbitration analysis of chemical composition are inconsistent with
the stipulations of this Standard, then, take a double size of ingot specimens from this batch of
products for a repeated test of the disqualified items. If there is still one disqualified item, then,
the batch of products shall be determined as disqualified.
5.5.2 When the results of the appearance inspection are inconsistent with the stipulations of this
Standard, then, the batch of products shall be directly determined as disqualified.
6 Marking, Packaging, Transportation, Storage and Quality
Certificate
6.1 Marking and Packaging
6.1.1 There shall be a non-fading mark on the outside of the packaging barrel (box), indicating:
the supply-side’s name, product name, designation, batch No., net weight, gross weight, exit-
factory date, and signs or words like “moisture-proof”.
6.1.2 The products shall be sealed and packed into iron drums with anti-oxidation measures. If
the demand-side has special requirements for the packaging, they shall be determined by the
demand-side and the supply-side through negotiation.
6.2 Transportation and Storage
During transportation and storage, the products shall be rigorously protected from moisture.
They need to be stored in a dry place and shall not be placed in the open air.
6.3 Quality Certificate
Each batch of products shall be attached with a quality certificate, indicating:
a) Supply-side’s name;
b) Product name;
c) Designation, batch No., net weight, gross weight and number of pieces;
d) The results of each analysis and inspection, and the seal of the supply-side’s quality
inspection department;
e) Serial No. of this Standard;
f) Date of inspection;