GB/T 45458-2025 English PDF

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GB/T 45458-2025: Method for determination of trace elements in attapulgite
Status: Valid

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Basic data

Standard ID: GB/T 45458-2025 (GB/T45458-2025)
Description (Translated English): Method for determination of trace elements in attapulgite
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: Q69
Classification of International Standard: 73.080
Word Count Estimation: 14,114
Date of Issue: 2025-03-28
Date of Implementation: 10/1/2025
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 45458-2025: Method for determination of trace elements in attapulgite

---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 73.080 CCSQ69 National Standard of the People's Republic of China Determination Method of Trace Elements in Attapulgite Released on 2025-03-28 2025-10-01 Implementation State Administration for Market Regulation The National Standardization Administration issued

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 by China Building Materials Federation. This document is under the jurisdiction of the National Technical Committee for Standardization of Non-metallic Mineral Products and Products (SAC/TC406). This document was drafted by. Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Linze County Attapulgite Industry Development Center, Mingguang City Mingyaoao Vermiculite Industrial Technology Co., Ltd., Xianyang Nonmetallic Mineral Research and Design Institute Co., Ltd., Jiangsu Shenlite Biotechnology Co., Ltd., Lanzhou City College, Anhui Jiaheng New Materials Technology Co., Ltd., Jining Normal University, Heilongjiang Fifth Geological Exploration Institute, Gansu Huilin Industrial Development Co., Ltd., Xuyi County Sinoma Attapulgite Clay Co., Ltd., Mudanjiang Medical University, China Building Materials Industrial Geological Exploration Center, China Shaanxi General Team of Building Materials Industrial Geological Exploration Center, China National Testing and Inspection Holding Group Xianyang Co., Ltd., China Geological Survey Xi'an Geological Survey Center (Northwest Geological Science and Technology Innovation Center). The main drafters of this document are. Wang Aiqin, Liu Jun, Xu Fan, Zhang Honglin, Ouyang Zhengjian, Huang Zhengjun, An Junwei, Sha Zhuang, Zhang Jianhu, Wu Xichun, Zhou Wei, Zheng Changwen, Wang Jinbao, Xu Hongna, Li Xin, Duan Yaping, Li Weiliang, Kang Yuru, Yan Shun, Dong Xiao, Hou Caihong, Wang Zifan, Meng Xiangfeng, Zeng Hanhui, Lu Guanghui, Yang Xiangnong, and Zhang Zhen. Determination Method of Trace Elements in Attapulgite Warning---People who use this document should have relevant professional knowledge and practical experience in formal laboratory work. This document does not indicate The user is responsible for taking appropriate safety, health and environmental measures and ensuring compliance with relevant national laws and regulations. Laws and regulations.

1 Scope

This document describes the sample preparation, inductively coupled plasma atomic emission spectrometry (ICP-AES) and the method for the determination of trace elements in attapulgite. OES), inductively coupled plasma mass spectrometry (ICP-MS) and atomic fluorescence spectroscopy (AFS). This document applies to barium, beryllium, cadmium, cobalt, chromium, copper, manganese, molybdenum, nickel, lead, tin, strontium, vanadium, zinc, arsenic, mercury, Determination of 18 trace elements including antimony and selenium. Other elements can be used after verification.

2 Normative references

The contents of the following documents constitute 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 602 Preparation of standard solutions for determination of impurities in chemical reagents GB/T 6682 Specifications and test methods for water used in analytical laboratories GB/T 8170 Rules for rounding off values and expression and determination of limit values

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 In addition to the main skeleton elements of attapulgite, silicon, magnesium, aluminum, and iron, it also contains barium, beryllium, cadmium, cobalt, chromium, copper, manganese, molybdenum, nickel, lead, tin, strontium, vanadium, 18 elements including zinc, arsenic, mercury, antimony and selenium. 4.Sample preparation Grind the sample until it passes through a 74 μm standard sieve, dry it in an oven at 105°C ~ 110°C for 2 h, and place it in a desiccator for later use. Note. Samples for determination of arsenic, mercury, selenium and antimony should be dried at 45℃±5℃. 5 Inductively coupled plasma atomic emission spectroscopy (ICP-OES) method 5.1 Scope of application It is suitable for testing the contents of 11 trace elements including barium, cobalt, chromium, copper, manganese, nickel, lead, tin, strontium, vanadium and zinc in attapulgite. ......

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