GB/T 10322.5-2024 PDF English
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Iron ores - Determination of the moisture content of a lot
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GB/T 10322.5-2024: PDF in English (GBT 10322.5-2024) GB/T 10322.5-2024
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 73.060.10
CCS D 31
GB/T 10322.5-2024 / ISO 3087:2020
Replacing GB/T 10322.5-2016
Iron ores - Determination of the moisture content of a lot
(ISO 3087:2020, IDT)
ISSUED ON: MAY 28, 2024
IMPLEMENTED ON: DECEMBER 01, 2024
Issued by: State Administration for Market Regulation;
Standardization Administration of the People’s Republic of China.
Table of Contents
Foreword ... 3
Introduction ... 5
1 Scope ... 6
2 Normative references ... 6
3 Terms and definitions ... 6
4 Principle ... 7
5 Apparatus ... 7
6 Sample preparation ... 7
7 Test procedure ... 8
8 Verification ... 10
9 Calculations and expression of results ... 10
10 Test report ... 14
Annex A (informative) Determination of moisture content of adhesive or wet iron ores
... 15
Annex B (normative) Corrections for sprinkled water and/or rainwater ... 17
Annex C (informative) Precision of moisture measurement ... 23
Annex D (informative) Examples of test reports ... 24
Foreword
This document was drafted in accordance with the rules given in GB/T 1.1-2020,
Directives for standardization - Part 1: Rules for the structure and drafting of
standardizing documents.
This document is Part 5 of GB/T 10322. The following parts have been published under
GB/T 10322.
-- Iron ores - Sampling and sample preparation procedures;
-- Iron ores - Experimental methods for evaluation of quality variation;
-- Iron ores - Experimental methods for checking the precision of sampling;
-- Iron ores - Experimental methods for checking the bias of sampling;
-- Iron ores - Determination of the moisture content of a lot;
-- Iron ores for blast furnace feedstocks - Determination of the decrepitation
index;
-- Iron ores and direct reduced iron - Determination of size distribution by
sieving;
-- Iron ores - Single-point determination of specific surface area - Nitrogen
adsorption method.
This document replaces GB/T 10322.5-2016 Iron ores - Determination of the moisture
content of a lot. Compared with GB/T 10322.5-2016, the main technical changes are as
follows:
a) Change the normal reference method for determining the moisture content (see
7.2.2; 7.2.2 of the 2016 edition);
b) Add alternative methods for determining the moisture content (see 7.3);
c) Change the accuracy requirements for the weighing device (see 5.3; 5.3 of the
2016 edition);
d) Change the calculation and presentation of results (see Chapter 9; Chapter 9 of
the 2016 edition).
This document is identical to ISO 3087:2020, Iron ores - Determination of the moisture
content of a lot.
Please note that some of the contents of this document may involve patents. The issuing
organization of this document is not responsible for identifying patents.
Iron ores - Determination of the moisture content of a lot
1 Scope
This document specifies a method for the determination of the moisture content of a lot
of iron ore.
This document is applicable to all iron ores, whether natural or processed.
2 Normative references
The following documents are referred to in the text in such a way that some or all of
their content constitutes requirements of this document. For dated references, only the
edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
ISO3082, Iron ores - Sampling and sample preparation procedures
Note: GB/T 10322.1-2023, Iron ores - Sampling and sample preparation
procedures (ISO 3082:2017, IDT)
ISO 3085, Iron ores - Experimental methods for checking the precision of sampling
Note: GB/T 10322.3-2000, Iron ores - Experimental methods for checking the
precision of sampling (ISO 3085:1996, IDT)
ISO 3086, Iron ores - Experimental methods for checking the bias of sampling
Note: GB/T 10322.4-2014, Iron ores - Experimental methods for checking the bias
of sampling (ISO 3086:2006, IDT)
ISO 11323, Iron ore and direct reduced iron - Vocabulary
Note: GB/T 20565-2022, Iron ores and direct reduced iron - Vocabulary (ISO
11323:2010, IDT)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 11323 apply.
...... Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.
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