GB/T 10268-2008Uranium ore concentrate (English PDF)

Foreword

This revised standard adopts ASTMC967.2002a "uranium ore concentrate." this standard and ASTMC967.2002a compared to the main technical differences are. impurity content is not fine limit, the titanium wider than 0.02% ASTMC967. The 2002a 0.01%, vanadium, carbon, thorium strict requirements in ASTMC967.2002a standards.

This standard replaces GB/T 10268-1988 "uranium ore concentrate." this standard and GB/T 10268-1988 compared to the main changes are as follows.

--- Increasing the foreword;

--- Original "subject matter and scope" to "range", and the content has been modified;

--- Added "normative references";

--- Added "Terms and Definitions";

--- 4.1.1.1 The Triuranium uranium content (mass fraction) by a greater than 75% to be greater than 80%;

--- 4.1.3 adds support for insoluble uranium nitrate content control requirements;

--- 4.1.4 adds support for extractable organic content control requirements;

--- Impurity content limit requirements of the "standard value" 4.1.5 to read "not fine limits", "maximum limit" to "not reject limits" (See Table 1);

--- 4.1.5 Table 1 "not fine limits" of phosphorus, fluorine, iron, calcium, zirconium, magnesium six elements of the original strict standards;

--- 4.1.5 Table 1 "does not reject limits" halogen, fluorine, iron, arsenic, calcium five elements to maintain the original standards, the use of water and other elements the ASTMC967.2002a standard "does not reject limits";

--- 4.2.2 adds support for uranium ore concentrate liquidity requirements;

--- "5 Acceptance rules" remove the weighing requirements.

GB/T 11848.1 ~ 11848.16 "chemical analysis of uranium ore concentrate and atomic absorption spectrometry method" is to support the standard Documents.

The standard proposed by China National Nuclear Corporation.

This standard by the National Standardization Technical Committee of nuclear energy.

This standard was drafted. two hundred seventy-two uranium nuclear industry limited liability company.

1 Scope

This standard specifies the uranium ore concentrate general technical requirements, acceptance rules and test methods, packaging, labeling, transportation and storage requirements.

This standard applies to uranium content (mass fraction, dry basis) over 65% of the uranium ore concentrate.

This standard does not include radiation protection and occupational health requirements, compliance with this standard does not relieve users to understand and comply with all applicable Possession, transport or use nuclear materials laws and regulations relating to the responsibility of international, national and local.

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 4960.3 term nuclear fuel and nuclear science and technology of nuclear fuel cycle GB/T 11848.1 ~ 11848.16 uranium ore concentrate chemical analysis and atomic absorption spectrometry method GB 11806 Regulations for the Safe Transport of Radioactive Substances GB/T 13701 standard single gas mass spectrometry analysis of uranium isotopes

3 Terms and Definitions

GB/T 4960.3 and identified the following terms and definitions apply to this standard.

By physical or chemical means uranium containing uranium ores and other materials obtained by high crude product containing uranium, ore concentrate products, including Triuranium and yellow cake two products.

4 Technical Requirements