XB/T 215-2015Dysprosium fluoride (English PDF)

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009.

This standard replaces XB/T 215-2006 "dysprosium fluoride." this standard and XB/T 215-2006 compared to the main technical changes are as follows.

--- Modify the REO of all grades, adjusted from 83% to 84% ± 1%;

--- Modify the amount of fluorine (F) of various grades, adjusted from 24% to 25% ± 1%;

--- Increased water (H2O) content of the assessment indicators;

--- Increased the assessment of nickel oxide indicators;

--- Modify the grade 10,2035,102030,102025 iron oxide (Fe2O3) assessment indicators;

--- Increased 10,2040 grade;

--- Remove the 10,2020 grade.

This standard by the National Rare Earth Standardization Technical Committee (SAC/TC229) and focal point.

This standard is mainly drafted by. Baotou Rare Earth Research Institute, Baotou Ruida Rare Earth Materials Co., Ltd., Ganzhou Qiao East Rare Earth Group Co., Ltd.

Company, Rare Earth New Materials Co., Ltd., Ganzhou dawn Rare Earth New Materials Co., Ltd..

1 Scope

This standard specifies the fluoride product requirements, test methods, inspection rules and signs, packaging, transportation, storage and quality certificates.

This standard applies to the chemical method (dry method) prepared for the production of metal dysprosium, iron alloy, metallurgy and special steel with dysprosium fluoride.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this document Pieces. For undated references, the latest edition (including all amendments) applies to this document.

GB/T 8170 rounded repair rules and limit values of the representation and judgment GB/T 12690 (all parts) - Non-rare earth impurities in rare earth metals and their oxides - Chemical analysis methods Methods for chemical analysis of rare earth metals and their compounds - Determination of total rare earths GB/T 18115.9 rare earth metals and their oxides rare earth impurities chemical analysis of dysprosium in lanthanum, cerium, praseodymium, neodymium, samarium, europium, gadolinium, Determination of terbium, holmium, erbium, azulene, ytterbium, azulene and yttrium XB/T 615 Methods for chemical analysis of fluorinated rare earths - Determination of fluorine content - Steam distillation - EDTA titration

3 Requirements