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GB/T 29509.1-2025 English PDF

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US$289.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 29509.1-2025: Methods for chemical analysis of gold-loaded carbon - Part 1: Determination of gold and silver contents
Status: Valid

GB/T 29509.1: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 29509.1-2025	289	Add to Cart	3 days	Methods for chemical analysis of gold-loaded carbon - Part 1: Determination of gold and silver contents	Valid
GB/T 29509.1-2013	209	Add to Cart	3 days	Methods for chemical analysis of gold-loaded carbon -- Part 1: Determination of gold content	Valid

Similar standards

GB/T 42333 GB/T 20899.1 YS/T 254.1 GB/T 20899.10 GB/T 20899.9 GB/T 29509.2

Basic data

Standard ID: GB/T 29509.1-2025 (GB/T29509.1-2025)
Description (Translated English): Methods for chemical analysis of gold-loaded carbon - Part 1: Determination of gold and silver contents
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: D46
Classification of International Standard: 73.060.99
Word Count Estimation: 14,175
Date of Issue: 2025-06-30
Date of Implementation: 2026-01-01
Older Standard (superseded by this standard): GB/T 29509.1-2013
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 29509.1-2025: Methods for chemical analysis of gold-loaded carbon - Part 1: Determination of gold and silver contents

---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT29509.1-2025
ICS 73.060.99 CCSD46 National Standard of the People's Republic of China Replaces GB/T 29509.1-2013 Chemical analysis method of gold-loaded carbon Part 1.Determination of gold and silver content Released on June 30, 2025 Implementation on January 1, 2026 State Administration for Market Regulation The National Standardization Administration issued

Preface III Introduction IV 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Method 1.Determination of gold and silver content - Fire assay gravimetric method (arbitration method) 1 4.1 Principle 1 4.2 Reagents or Materials 1 4.3 Instruments and Equipment 2 4.4 Preparation of samples and test materials 2 4.5 Test Step 3 4.6 Experimental data processing 4 4.7 Precision 5 4.8 Test Report 6 5 Method 2.Determination of gold content --- flame atomic absorption spectrometry 6 5.1 Principle 6 5.2 Reagents or materials 6 5.3 Instruments and Equipment 7 5.4 Preparation of samples and test materials 7 5.5 Test Step 7 5.6 Experimental data processing 8 5.7 Precision 8 5.8 Test report 9 Preface This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents" Drafting. This document is Part 1 of GB/T 29509 "Chemical analysis methods of gold-loaded carbon". GB/T 29509 has been published in the following two parts. part. --- Part 1.Determination of gold and silver content; --- Part 2.Determination of silver content - Flame atomic absorption spectrometry. This document replaces GB/T 29509.1-2013 "Chemical analysis methods of gold-loaded carbon Part 1.Determination of gold content" and GB/T 29509.1- Compared with.2013, in addition to structural adjustments and editorial changes, the main technical changes are as follows. a) The determination range of silver content has been increased (see Chapter 1); b) Added the sample weight table for silver content (see 4.4.2); c) Added the step of determining the amount of silver (see 4.5); d) Added the calculation formula for silver content (see 4.6); e) Increased the precision of silver content (see 4.7). Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents. This document is proposed and coordinated by the National Gold Standardization Technical Committee (SAC/TC379). This document was drafted by. Changchun Gold Research Institute Co., Ltd., Zijin Mining Group Co., Ltd., and SDIC Jincheng Metallurgical Co., Ltd. Company, Inner Mongolia Taiping Mining Co., Ltd., Jiangxi Sanhe Gold Industry Co., Ltd., Shandong Gold Mining Technology Co., Ltd. Metallurgical Laboratory Branch Hunan Mineral Resources Group Co., Ltd., Shandong Gold Geology and Mineral Exploration Co., Ltd., Songxian Jinniu Co., Ltd., Yantai Jinao Environmental Protection Technology Co., Ltd. and Yunnan Gold Mining Group Precious Metals Testing Co., Ltd. The main drafters of this document are. Lu Xingen, Ma Lijun, Liu Shuo, Chen Zhuhai, Liu Hui, Li Qiang, Zhao Kai, Zhang Guangsheng, Li Zhengxu, Zhu Xingfu, Long Xiujia, Liu Juan, Wang Ju, Yang Zhifeng, Zhang Jinlei, Qiao Xiaohu, Wang Zhiqiang, Lü Hui, Fan Ruhong, Wang Jidong, Chen Xiaoke, Lü Shunyi, Meng Xianwei, Du Xiaowang. The previous versions of this document and the documents it replaces are as follows. ---GB/T 29509.1-2013; ---This is the first revision.

introduction

Gold-loaded carbon is defined as activated carbon after gold adsorption, which is an intermediate product in the gold extraction process. Establish a unified testing and evaluation method for the production and trade of gold-loaded carbon, providing accurate and reliable technology for the efficient recovery of gold resources and fair trade support. GB/T 29509 is intended to consist of two parts. --- Part 1.Determination of gold and silver content. The purpose is to specify the fire assay gravimetric method, gold gravimetric method, and The flame atomic absorption spectrometry method used for determination and the applicable measurement range of each method. --- Part 2.Determination of silver content flame atomic absorption spectrometry. The purpose is to specify the flame atomic absorption spectrometry method for the determination of silver content in gold-loaded carbon. Absorption spectroscopy and applicable measurement range. Chemical analysis method of gold-loaded carbon Part 1.Determination of gold and silver content 1 Scope This document describes a method for the determination of gold and silver in gold-loaded carbon. This document is applicable to the determination of gold and silver content in gold-loaded carbon. Method 1 Fire Assay Gravimetric Method Gold Content Determination Range. 100.0 g/t~ 10000.0g/t, silver content determination range. 500.0g/t~20000.0g/t; Method 2 Flame Atomic Absorption Spectrometry Gold Content Determination Range. 100.0g/t~10000.0g/t. 2 Normative references The contents of the following documents constitute the essential clauses of this document through normative references in this document. For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to This document. GB/T 17433 Basic terminology for chemical analysis of metallurgical products YS/T 3014 Gold-loaded Carbon 3 Terms and Definitions The terms and definitions defined in GB/T 17433 apply to this document.

4 Method 1.Determination of gold and silver content - Fire assay gravimetric method (arbitration method)

4.1 Principle The sample is roasted, mixed and melted to obtain lead buckles of appropriate quality containing precious metals. The gold and silver are separated from the lead buckles by ash blowing. The gold and silver particles are processed and weighed, and then the gold is separated by nitric acid, and the gold and silver contents are determined by weight. 4.2 Reagents or materials Unless otherwise stated, only reagents of confirmed analytical grade and distilled or deionized water or water of equivalent purity were used in the tests. 4.2.1 Metallic silver. wAg ≥ 99.99%. 4.2.2 Lead foil. wPb ≥ 99.99%, thickness approximately 0.1 mm, gold content < 0.02 g/t, silver content < 0.5 g/t. 4.2.3 Sodium carbonate. industrial pure, powdered. 4.2.4 Lead oxide. technically pure, powdered, gold content < 0.02 g/t, silver content < 0.5 g/t. 4.2.5 Borax. industrial pure, powdered. 4.2.6 Silicon dioxide. industrial pure, powdered. 4.2.7 Flour. 4.2.8 Glacial acetic acid. ρ = 1.05 g/mL. 4.2.9 Nitric acid. ρ = 1.42 g/mL. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 29509.1-2025_English be delivered?

Answer: Upon your order, we will start to translate GB/T 29509.1-2025_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 29509.1-2025_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 29509.1-2025_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 29509.1-2025?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 29509.1-2025 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.