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Determination of silver content in silver paste for solar cells - Thiocyanate standard solution titration method
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Basic data | Standard ID | GB/T 43788-2024 (GB/T43788-2024) | | Description (Translated English) | Determination of silver content in silver paste for solar cells - Thiocyanate standard solution titration method | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | L90 | | Classification of International Standard | 31.030 | | Word Count Estimation | 14,199 | | Date of Issue | 2024-03-15 | | Date of Implementation | 2024-10-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 43788-2024: Determination of silver content in silver paste for solar cells - Thiocyanate standard solution titration 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.
ICS 31.030
CCSL90
National Standards of People's Republic of China
Determination of silver content in silver paste for solar cells
Thiocyanate standard solution titration method
Released on 2024-03-15
2024-10-01 Implementation
State Administration for Market Regulation
The National Standardization Administration issued
Table of Contents
Preface I
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 Reagents or materials 1
5 Sample 2
5.1 Sample 2
5.2 Preparation of sample solution 2
6 Determination of silver content 3
6.1 Method 1.Visual titration 3
6.2 Method 2.Potentiometric titration (arbitration method) 3
7 Result calculation 4
8 Allowable difference 4
9 Quality Assurance and Control 5
10 Test Report 5
Appendix A (Normative) Preparation and calibration of thiocyanate standard titration solution 6
A.1 Reagents or materials 6
A.2 Preparation 6
A.3 Calibration 6
A.4 Calculation 7
Appendix B (Informative) Silver Electrode Activation Treatment Example 8
B.1 Overview 8
B.2 Reagents or materials 8
B.3 Activation Step 8
B.4 Notes 8
Reference 10
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 for standardization documents"
Drafting.
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 was proposed and coordinated by the National Technical Committee for Semiconductor Equipment and Materials Standardization (SAC/TC203).
This document was drafted by. CEC Solar Technology (Zhenjiang) Co., Ltd., Wuxi Inspection and Certification Institute, China Electronics Technology
National Institute of Standardization, Jiangsu Safetech Semiconductor Materials Testing Technology Co., Ltd., Wuxi Daqin Calibration Testing Co., Ltd., Wuxi City Analysis and Testing Co., Ltd.
The Institute of Testing, Photovoltaic Industry Technology Branch of Qinghai Yellow River Upstream Hydropower Development Co., Ltd., Yixing Product Quality and Food Safety Inspection and
Testing Center, Xi'an Hongxing Electronic Paste Technology Co., Ltd., Xinjiang Xinte New Energy Materials Testing Center Co., Ltd., Shanghai Nonferrous Metals Industry
Industry Technology Monitoring Center Co., Ltd., Wuxi Dike Electronic Materials Co., Ltd., Guangzhou Ruxing Technology Co., Ltd., CGN Wind
Co., Ltd., Tianjin Aixu Solar Technology Co., Ltd., Trina Solar Co., Ltd., Shanghai Materials Research Institute Co., Ltd., Jinglan Optoelectronics
Electric Technology (Jiangsu) Co., Ltd. and Zhejiang Hongxi Energy Co., Ltd.
The main drafters of this document are. Huang Guoping, Huang Wenhao, Wang Xiaohua, Lu Jiayan, Pei Huichuan, Shen Lifei, Qiu Yanmei, Wang Zhiqiang, Gan Mingxing,
Gao Ronggang, Lu Wenfeng, He Li, Ma Yunfeng, Zhao Ying, Li Yang, Zhang Hongwang, Ouyang Jieyu, Fan Zhongyao, Yang Ercun, Huo Tingting, Ma Chongxian, Jin Guangyao,
Yang Yihua.
Determination of silver content in silver paste for solar cells
Thiocyanate standard solution titration method
Warning---The nitric acid used in this document is volatile and corrosive. Avoid inhalation or contact with skin when using it.
Rinse with plenty of water and seek medical attention immediately if severe.
1 Scope
This document describes the method for the determination of the silver content in silver pastes for solar cells by titration with a thiocyanate standard solution.
This document is applicable to silver paste for solar cells, including front silver paste and back silver paste that conform to YS/T 612.The measurement range is silver content.
(Mass fraction) 30%~95%. Other conductive silver pastes (such as precious metal pastes for microelectronics technology) and raw silver powder for making silver pastes, etc.
For reference only.
Note. When the silver content (mass fraction) of silver powder is determined by referring to the method in this document, the upper limit of the determination range is 99%.
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 601 Preparation of standard titration solutions for chemical reagents
GB/T 603 Preparation of preparations and products used in chemical reagent test methods
GB/T 8170 Rules for rounding off values and expression and determination of limit values
GB/T 9725 General rules for potentiometric titration of chemical reagents
GB/T 14666 Terminology of Analytical Chemistry
GB/T 17472 Specification for precious metal pastes for microelectronics
YS/T 612 Paste for solar cells
3 Terms and definitions
The terms and definitions defined in GB/T 14666, GB/T 17472 and YS/T 612 apply to this document.
4 Reagents or materials
4.1 The water used in the test is deionized water without carbon dioxide, prepared according to GB/T 603.Pour deionized water into a flask, boil for 10 minutes, and
That is, plug it tightly with a rubber stopper filled with soda lime and cool it.
4.2 Nitric acid (ρ about 1.42 g/mL). high purity.
4.3 Nitric acid solution (1.1). Prepare with nitric acid (4.2) in a volume ratio.
4.4 Sodium thiocyanate (or potassium thiocyanate or ammonium thiocyanate). analytical grade.
4.5 Ammonium ferric sulfate dodecahydrate. analytical grade.
4.6 Nitric acid solution (3.7). Prepare with nitric acid (4.2) in volume ratio.
...
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