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GB/T 13449-2021 English PDF

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Q: Should I purchase the latest version GB/T 13449-2021?

Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 13449-2021 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.

US$189.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 13449-2021: Method for sampling and sample preparation of gold lump ores
Status: Valid

GB/T 13449: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 13449-2021	189	Add to Cart	3 days	Method for sampling and sample preparation of gold lump ores	Valid
GB/T 13449-1992	359	Add to Cart	3 days	Gold lump cores. Increment sampling and sample preparation. Manual method	Obsolete

Similar standards

GB/T 7729 GB/T 33785 GB/T 31935 GB/T 45647 GB/T 45436

Basic data

Standard ID: GB/T 13449-2021 (GB/T13449-2021)
Description (Translated English): Method for sampling and sample preparation of gold lump ores
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: H04
Word Count Estimation: 10,157
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 13449-2021: Method for sampling and sample preparation of gold lump ores

---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.
Method for sampling and sample preparation of gold lump ores ICS 77.120.99 CCSH04 National Standards of People's Republic of China Replace GB/T 13449-1992 Gold nugget sampling and sample preparation method Released on 2021-04-30 2021-11-01 implementation State Administration of Market Supervision and Administration Issued by the National Standardization Management Committee

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents" Drafting. This document replaces GB/T 13449-1992 "Manual Method for Sampling and Sample Preparation of Gold Nuggets". Compared with GB/T 13449-1992, In addition to structural adjustments and editorial changes, the main technical changes are as follows. ---The reference standards GB/T 2007.1 and GB/T 2007.2 are deleted (see Chapter 2 of the.1992 edition); ---Added reference standards GB/T 2007.3, GB/T 7739, GB/T 14260 (see Chapter 2); --- Deleted the terms "manual sampling" and "stratified sampling" (see.1992 edition 3.1, 3.11); --- Added the terms "inspection lot", "quality fluctuation", "precision" and "coefficient of variation" (see 3.2, 3.11, 3.12, 3.13); ---The relationship between the type of quality fluctuation and the number of copies has been added (see 4.4); ---The relationship between the maximum particle size of the sample and the amount of incremental sample has been increased (see 4.5); ---Added the parallel sampling method of unloading truck in stockyard (see 5.3.2); ---Added the sampling method of bagged gold nuggets (see 5.3.3); --- Deleted "determining the total precision of metallurgical gold nuggets as ±2%" and "determining the sampling precision of metallurgical gold nuggets as 1.62%" 5.1 and 5.2 of the.1992 edition); --- Deleted "stratified sampling" (see.1992 edition 5.7.1); ---The grinding fineness is changed, and the -150 mesh is changed to 0.074mm (see 6.2.1, 6.3.2 of the.1992 edition). Please note that some of the contents of this document may involve patents. The issuing agency of this document is not responsible for identifying patents. This document was proposed by China Nonferrous Metals Industry Association. This document is under the jurisdiction of the National Non-ferrous Metals Standardization Technical Committee (SAC/TC243). Drafting organizations of this document. Shandong Hengbang Smelting Co., Ltd., Jiangxi Copper Co., Ltd., Non-ferrous Metals Technology and Economic Research Institute Co., Ltd., Southwest Copper Branch of Yunnan Copper Co., Ltd., Zijin Mining Group Co., Ltd., Jiangxi Yuecheng Technology Co., Ltd. Co., Ltd., Mitra Testing Technology (Tianjin) Co., Ltd., Chenzhou Product Quality Supervision and Inspection Institute, Tongling Nonferrous Metals Group Holdings Co., Ltd. Company, Northern Copper Co., Ltd., Lianyungang Customs Comprehensive Technology Center, SDIC Jincheng Metallurgical Co., Ltd., Henan Jinli Gold and Lead Set Group Co., Ltd., Jiyuan Wanyang Smelting (Group) Co., Ltd., Shandong Gold Mining Technology Co., Ltd. Metallurgical Laboratory Branch, Yangguxiang Guang Copper Co., Ltd., Henan Yuguang Gold and Lead Co., Ltd., Yantai City Product Quality Supervision and Inspection Institute. The main drafters of this document. Qu Shengli, Zhang Junfeng, Zhang Yanfeng, Xiang Lei, Yang Guotao, Pan Yuxi, Jiang Tao, Zhao Li, Wan Jing, Yan Hong, Li Yudong, Xia Zhenzhu, Luo Ronggen, Shen Jinhai, Huang Lixia, Yang Dong, Zhang Zhuojia, Wang Long, Peng Kang, Lian Huiping, Liu Lian, Wang Heng, Fan Jingke, Huang Xiantao, Yan Pingping, Liu Guangzhou, Li Guangsheng, Wan Shuang, Li Xianhe, Kong Jianmin, Chen Xuwei. The previous releases of this document and the replaced documents are as follows. ---First published as GB/T 13449-1992 in.1992; ---This is the first revision. Gold nugget sampling and sample preparation method

1 Scope

This document specifies the requirements for sampling and sample preparation, sampling, sample preparation, test methods, sample storage and identification of gold nuggets for metallurgy. This document is applicable to sampling and sample preparation methods based on manual methods under the conditions specified in the technical standards for metallurgical gold nuggets.

2 Normative references

The contents of the following documents constitute the indispensable clauses of this document through normative references in the text. Among them, dated quotations Only the version corresponding to that date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to This document. GB/T 2007.3 General Rules for Sampling and Sample Preparation of Bulk Mineral Products Test Method for Evaluating Quality Fluctuation GB/T 2007.4 Bulk Mineral Products Sampling and Sample Preparation General Rules Deviation, Precision Checking Test Method GB/T 2007.6 General Rules for Sampling and Sample Preparation of Bulk Minerals GB/T 2007.7 General Rules for Sampling and Sample Preparation of Bulk Minerals GB/T 7739 (all parts) Methods for chemical analysis of gold concentrates GB/T 14260 General Rules for Sampling and Sample Preparation of Bulk Heavy Non-ferrous Metal Flotation Concentrates

3 Terms and definitions

The following terms and definitions defined in GB/T 14260 apply to this document. 3.1 Batch lot Under the assumption of the same conditions, a certain quality of ore processed or produced. 3.2 Lotsample Sampling unit designated for determining grade. [Source. GB/T 14260-2010, 3.1] 3.3 Deliverylot A certain amount of ore of the same specification can be delivered at one time, which can be composed of one or more inspection lots. 3.4 Batch It constitutes the quality of an inspection lot or a delivery lot of ore. 3.5 Basic lot The minimum quality of a batch specified in the sampling standard. A basic batch of ore from trucks and bicycles can be used. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 13449-2021_English be delivered?

Answer: Upon your order, we will start to translate GB/T 13449-2021_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 13449-2021_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 13449-2021_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.

Question 5: Should I purchase the latest version GB/T 13449-2021?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 13449-2021 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.