GB/T 25947-2010 English PDF

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GB/T 25947-2010: Aluminium ores -- Determination of the moisture content of bulk material
Status: Valid

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Basic data

Standard ID: GB/T 25947-2010 (GB/T25947-2010)
Description (Translated English): Aluminium ores -- Determination of the moisture content of bulk material
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: H30
Classification of International Standard: 73.060.40
Word Count Estimation: 11,168
Date of Issue: 2010-12-23
Date of Implementation: 2011-09-01
Quoted Standard: GB/T 25945-2010; GB/T 25949-2010
Adopted Standard: ISO 9033-1989, IDT
Regulation (derived from): National Standard Approval Announcement 2010 No.10 (Total No.165)
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This standard specifies the determination of moisture content in bauxite. This standard applies to the determination of the moisture content of the sample from the bulk bauxite (eg cabin materials and stacking) in the take. Appendix A of this standard specifies the sample since the adhesive or wet sieving and difficult, the crushing and separation methods used. In this case, the sample can be pre-dried until it can be processed smoothly until the water sample after pre-drying step according to Appendix A predetermined measurement. Appendix B provides for the delivery of bauxite encountered when watering and/or rainfall correction method. In the case of goods subject to rain and/or sprinkler control dust, moisture bauxite according to Appendix B for adding moisture to be corrected.

GB/T 25947-2010: Aluminium ores -- Determination of the moisture content of bulk material

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Aluminium ores. Determination of the moisture content of bulk material ICS 73.060.40 H30 National Standards of People's Republic of China Bauxite Determination of the moisture content of bulk material (ISO 9033. 1989, IDT) Issued on. 2010-12-23 2011-09-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

1989 (E) "Determination of bauxite bulk material moisture content". the use of ISO 9033 This standard is equivalent to using the translation method. The Standard Appendix A, Appendix B are normative appendix. The standard proposed by China Nonferrous Metals Industry Association. This standard Nonferrous Metals by the National Standardization Technical Committee. This standard by the Aluminum Corporation of China Zhengzhou Research Institute, China Nonferrous Metals Industry Institute of Standards Metrology and Quality is responsible for drafting. This standard was drafted by the Aluminum Corporation of China Zhengzhou Research Institute. The main drafters. Zhang Yuan grams, Zhang North Korea, Xia Road, Long Zhihua. Bauxite Determination of the moisture content of bulk material

1 Scope

This standard specifies the determination of moisture content in bauxite. This standard applies to the determination of moisture content from the bulk sample bauxite (such as cabin materials and stacker) as taken. This standard specified in Appendix A as a result of bonding or wet and difficult to sample screening, crushing and separation methods used. In this case, , The samples can be smoothly carried out until the pre-drying treatment so far, after the pre-drying water content of the sample according to step A predetermined measurement Appendix. Appendix B provides for the delivery of bauxite encountered when sprinklers and/or rainfall correction method. In the goods from rain and/or sprinkler control The case of dust, moisture bauxite can be added to Appendix B of the water to be corrected.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. GB/T 25945-2010 bauxite sampling procedures (ISO 8685.1992, IDT) GB/T 25949-2010 bauxite sample preparation (ISO 6140.1991, IDT) Principle 3 In a forced air circulation drying oven, the temperature control at 105 ℃ ± 5 ℃, the sample was dried to a constant mass. Measuring quality loss. 4 apparatus, equipment or devices 4.1 drying trays. 4.2 Blast Oven. forced air circulation, capable of controlling the temperature of 105 ℃ ± 5 ℃. 4.3 weighing equipment. accurately weighed sample mass to 0.01%.

5 Sampling and sample

The specimen shall respectively GB/T 25945-2010/ISO 8685.1992 and GB/T 25949-2010/ISO 6140.1991 specified Sampling and preparation steps. Water samples prepared the following two possible ways. a) be prepared to separate and analyze water samples from a single aliquot of sample preparation or secondary; b) by a single aliquot of sample moisture subsample prepared or mixed into the overall sample for analysis. ......

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