GB/T 22563-2008All grades of fluorspar -- Determination of moisture content of a lot (English PDF)

Foreword

This standard is identical with ISO 8875:1992 "Determination of Moisture fluorite." the standard proposed by China Iron and Steel Association.

This standard is under the jurisdiction of the National Steel Standardization Technical Committee.

This standard was drafted. Wuhan Iron and Steel (Group) Corporation, Metallurgical Industry Information Standards Institute.

Drafters of this standard. Li Xiaojie, Shen Ke, Gao Jianping, Chou Jinhui, Yang, Jia Lihui, Baihan Fang.

GB/T 22563-2008/ISO 8875:1992 Moisture fluorite

1 Scope

This standard specifies the scope of the determination of the average quantities of water fluorite methods, terms and definitions, principles, equipment, samples, measuring step, results Content calculation and test reports.

This standard applies to all grades of fluorite, namely acid grade, ceramic grade and three metallurgical grade (concentrate, pellets and ore) water Determination.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.

GB/T 22564-2008 fluorite sampling and sample preparation (ISO 8875:1992, IDT)

3 Terms and Definitions

GB/T 22564 in determining the terms and definitions apply to this standard.

Principle 4

A sample in an oven at 105 °C ± 5 °C, the drying to a constant quality.

5 Device

6 Sample

And preparation of samples should be GB/T 22564-2008 provisions of Chapter 6 and 9.2 were. Each batch should be prepared 2 or 2 parts of more than one specimen. The total amount of each sample should meet the needs of each water sample to be measured. The quality of the sample should be 1kg or more than 1kg, most Large size should be -10mm.

7 Test Procedure

7.1 Determination of the number of each sample once Moisture.