GB/T 27674-2011 English PDF

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GB/T 27674-2011: Copper, lead and zinc sulfide concentrates -- Determination of hygroscopic moisture in the analysis sample -- Gravimetric method
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 27674-2011	174	Add to Cart	3 days	Copper, lead and zinc sulfide concentrates -- Determination of hygroscopic moisture in the analysis sample -- Gravimetric method	Valid

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Basic data

Standard ID: GB/T 27674-2011 (GB/T27674-2011)
Description (Translated English): Copper, lead and zinc sulfide concentrates -- Determination of hygroscopic moisture in the analysis sample -- Gravimetric method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: D42
Classification of International Standard: 77.120.01
Word Count Estimation: 9,975
Date of Issue: 2011-12-30
Date of Implementation: 2012-10-01
Adopted Standard: ISO 9599-1991, IDT
Regulation (derived from): National Standard Approval Announcement 2011 No.22
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 copper sulfide gravimetric method, lead and zinc concentrates hygroscopic moisture. This standard applies not contain volatile organic flotation agents (such as kerosene) of copper sulfide, determination of lead and zinc concentrates samples of water. Measuring range of 0. 05% to 2% (by mass), and the results for the analysis of sample components kept wet correction. This standard does not apply easily oxidized sulfide concentrate (see Note 6. 3), easily oxidized sulfide ore deposit wet moisture See Appendix A.

GB/T 27674-2011: Copper, lead and zinc sulfide concentrates -- Determination of hygroscopic moisture in the analysis sample -- Gravimetric method

---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.
Copper, lead and zinc sulfide concentrates. Determination of hygroscopic moisture in the analysis sample. Gravimetric method ICS 77.120.01 D42 National Standards of People's Republic of China Copper sulfide, lead and zinc concentrate sample Hygroscopic moisture - Gravimetric method Copper, leadandzincsulfideconcentrates-Determinationofhygroscopic (ISO 9599.1991, IDT) Issued on. 2011-12-30 2012-10-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard is in accordance with GB/T 1.1-2009 given rules drafted. This standard is identical with ISO 9599.1991 (E) "sulfide copper, lead and zinc concentrate sample hygroscopic moisture Gravimetric method." This standard and ISO 9599. compared to 1991 (E), mainly to do the following editorial changes. --- With a decimal point instead of a comma as the decimal point in the international standard ",". ","; --- Use the "standard" instead of "this International Standard"; --- According to Chinese customary change the standard name; --- Remove the cover of the international standards, directory, foreword and introduction. This standard by the national non-ferrous metals Standardization Technical Committee (SAC/TC243) centralized. This standard is mainly drafted by. Daye Nonferrous Metals Co., Ltd., China Nonferrous Metals Industry Standard Quality Measurement Institute. The main drafters of this standard. Cheng Xi, Hu Xinping, Zhao Junfeng, Hujun Kai, Miss Li, Zhang Yonghong, Long Yuzhen. Copper sulfide, lead and zinc concentrate sample Hygroscopic moisture - Gravimetric method

1 Scope

This standard specifies the method for the determination of the weight of the copper sulfide, lead and zinc concentrates hygroscopic moisture. This standard applies to copper sulfide does not contain volatile organic flotation agents (such as kerosene), the determination of lead and zinc concentrate sample moisture measurement In the range of 0.05% to 2% (mass fraction), the results for the analysis of sample components hygroscopic correction. Note. Determination of moisture content using the results of this standard does not concentrate as part of sample analysis results. When the need to determine the moisture content of the concentrate of commercial transport, the Senate According to ISO 10251 method. Water and hygroscopic moisture determination is closely related to the other, in order to ensure proper calibration metal content, the two methods The sample is required to achieve the same level of dryness. This standard does not easily oxidized sulfide concentrate (see Note 6.3), easily oxidized sulfide ore deposit wet moisture determination, see Appendix A.

2 Method summary

Dried in an oven sample temperature control at 105 ℃ ± 5 ℃, and hygroscopic moisture content by mass loss calculation.

3 Reagents

3.1 desiccant. silica gel or anhydrous magnesium perchlorate. Warning. Dispose of magnesium perchlorate, be careful, you must use the water into the tank.

4 Instrument

In addition to general laboratory equipment, but also includes. 4.1 Analysis of balance. a sense of the amount of 0.1mg. 4.2 Oven. Can temperature at 105 ℃ ± 5 ℃. 4.3 The dish. made of glass or silicon or other corrosion-resistant metal, having a diameter of about 50mm fastening closures. 4.4 flat chassis or tray.

5 Sampling methods and sample

5.1 Sample A sample size of less than 150μm. 5.2 Sample preparation Prepare enough for chemical analysis of samples and hygroscopic moisture determination. The sample is placed flat chassis or shallow dish (4.4), and spread evenly thickness About 3mm ~ 5mm. Cover, to prevent dust from falling, but allows air flow over the sample. In a laboratory environment, the sample is placed 2h Above, and to ensure the quality of the sample changes in 2h intervals of not more than 0.1%. ......

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