GB/T 41945-2022 English PDFUS$359.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 41945-2022: Rubber, raw, vulcanized - Determination of metal content by ICP-OES Status: Valid
Basic dataStandard ID: GB/T 41945-2022 (GB/T41945-2022)Description (Translated English): Rubber, raw, vulcanized - Determination of metal content by ICP-OES Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: G40 Classification of International Standard: 83.060 Word Count Estimation: 18,113 Date of Issue: 2022-12-30 Date of Implementation: 2023-04-01 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 41945-2022: Rubber, raw, vulcanized - Determination of metal content by ICP-OES---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 83.060 CCSG40 National Standards of People's Republic of China Inductively Coupled Plasma Emission for Green and Vulcanized Rubber Determination of metal content by spectrometer (ICP-OES) (ISO 19050.2021, MOD) Posted on 2022-12-30 2023-04-01 Implementation State Administration for Market Regulation Released by the National Standardization Management Committee forewordThis 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 revised using ISO 19050.2021 "Inductively coupled plasma optical emission spectrometer (ICP-OES) for raw rubber and vulcanized rubber" Determining Metal Content". Compared with ISO 19050.2021, this document has made the following structural adjustments. ---Added 5.8~5.11 in Chapter 5; --- 6.1a)~6.1d) in Chapter 6 correspond to 6.1.1~6.1.4 in ISO 19050.2021; --- Added 8.3.4.12, 8.3.4.13, 8.3.4.14 corresponding to 8.3.4.12, 8.3.4.13 in ISO 19050.2021; --- Appendix A of this document corresponds to Appendix B of ISO 19050.2021, and Appendix B corresponds to Appendix A of ISO 19050.2021. The technical differences between this document and ISO 19050.2021 and their reasons are as follows. --- For standard use, "this document is applicable to the determination of main metal elements and trace metal content in raw rubber and vulcanized rubber" has been added to the scope. quantitative analysis. " (see Chapter 1); ---Change "concentrated nitric acid, concentrated hydrochloric acid, concentrated sulfuric acid, the grade is super pure" to "concentrated nitric acid, concentrated hydrochloric acid, concentrated sulfuric acid, the grade is superior pure", Make it more in line with domestic reagent usage (see 5.1, 5.2 and 5.3); --- Increase the concentration of dilute hydrochloric acid and dilute nitric acid to make the reagent preparation process more clear (see 5.8~5.11); ---The "multi-element primary standard solution, single element primary standard solution, the traceable unit is the National Institute of Standards and Technology or any other "A national metrology institution" was changed to "Multi-element standard solution, single-element standard solution. certified reference material" to make it more in line with domestic testing Agent usage (see 5.4, 5.5); ---Change "filter paper, model WhatmanNO.44" to "quantitative filter paper" to make it more in line with the use of domestic filter paper conditions (see 6.11); --- Increase the "heating to remove acid" step, so that it can also use heating to remove acid to concentrate the sample (see 8.3.4.12); --- For ease of use, the requirements for "test procedure" and "specimen type used" in the "test report" have been deleted (see Chapter 10). The following editorial changes have been made to this document. --- Deleted the footnote of 6.11; --- Added the note "According to the sample type and the content of metal elements, adjust the weighing quality of the sample and the volume of the reagent added", so that it can be According to the difference of the sample matrix, adjust the conditions to achieve the purpose of decomposition (see 8.3.2); --- Added the note "according to the different equipment and the test range of the sample, adjust the concentration range of the standard solution", so that it can be adjusted according to the sample base If the quality is different, adjust the range of the calibration curve (see 9.5); ---Added the note "Adjust the operating conditions according to the position of the rectangular tube and the peak-shaving treatment of different equipment manufacturers" to make it suitable for different equipment (see 9.6.2). Please note that some contents of this document may refer to patents. The issuing agency of this document assumes no responsibility for identifying patents. This document is proposed by China Petroleum and Chemical Industry Federation. This document is sponsored by the General Test Method Subcommittee of National Rubber and Rubber Products Standardization Technical Committee (SAC/TC35/SC2) Focus on. This document was drafted by. Sailun Group Co., Ltd., Sinopec Beijing Beihua Institute Yanshan Branch, Sinopec Huabaling Petrochemical Co., Ltd., Yiweiyi Rubber Research Institute Co., Ltd., Shandong Linglong Tire Co., Ltd., Guangzhou Synthetic Materials Research Institute Co., Ltd. Research Institute Co., Ltd., Double Coin Group Shanghai Tire Research Institute Co., Ltd., Hangzhou Chaoyang Rubber Co., Ltd., Anhui Jiatong Passenger Radial Tire Co., Ltd., Qingdao Junxiang Technology Co., Ltd., Triangle Tire Co., Ltd., Shanghai Hanhai Testing Technology Co., Ltd., Guizhou Tire Co., Ltd., Fengshen Tire Co., Ltd., Shandong Huasheng Rubber Co., Ltd., Beijing Institute of Science and Technology Analysis and testing research Institute (Beijing Physical and Chemical Analysis and Testing Center), Beijing Rubber Industry Research and Design Institute Co., Ltd., Beijing Rubber Institute Rubber Tire Testing Technology Service Co., Ltd. Ltd. The main drafters of this document. Zhou Tianming, Hou Xiaoqian, Jiang Tao, Luo Junjie, Gong Linlin, Ding Xiaohong, Ding Zhaojuan, Yuan Chenchen, Jia Airui, Wei Sheng, Qie Jingjing, Peng Jun, Dong Wenwu, Chen Jiahui, Dai Zhongjuan, Zhou Jialiang, Li Li, Wang Meng, Pu Chengyong, Ma Xiuju, Yan Wenli, Peng Jin, Yang Zhuanqing, Yin Zhi, Long Yangxing, Zheng Ningjuan, Lu Shuangshuang, Zhang Yuliang, Xu Kai, Shao Peng, Wu Zan, Ding Xiaoying, Wang Na, Cang Feifei, Cui Chunli.IntroductionInductively coupled plasma optical emission spectrometer (ICP-OES) is used to determine the content of metal elements in various materials. absorbing light with atoms Compared with AAS technology, the main advantages of ICP-OES are. simultaneous analysis of multiple elements, wide dynamic range of measurement, and less condensed phase interference. this In addition, in addition to the elements that are difficult to form compounds, the detection sensitivity is higher for elements such as iodine, phosphorus, and sulfur. ICP-OES is also known as inductive coupling etc. Ion plasma atomic emission spectrometer (ICP-AES). ICP-OES was first applied to the analysis of trace elements, and it is an analysis method with the least interference among other common atomic spectroscopy techniques. The high-temperature environment of the plasma largely eliminates chemical interference. Utilizing the advantages of ICP multi-element simultaneous analysis, the physical interference. ICP-OES analyzes samples based on the spectra emitted by excited atoms and ions of elements. Since different elements can Light of different wavelengths is emitted, so the spectrum emitted by the plasma is composite. Use a spectrometer to decompose the emitted light into wavelengths Spectrum, so that the light intensity of each element can be analyzed without being affected by the spectrum of other elements. An important feature of ICP that is different from other light sources is that the sample enters the central channel of the plasma in the form of aerosol and is absorbed by the high-temperature plasma. Surrounded by the daughter body, the residence time of the sample in the ICP light source is about 2ms. This feature makes it possible to reduce matrix effect interference to a great extent. The assay methods described in this document have important implications for product safety and environmental protection. ICP-OES is an accurate Advanced instruments for detecting trace metal elements in raw rubber and vulcanized rubber including latex. Inductively Coupled Plasma Emission for Green and Vulcanized Rubber Determination of metal content by spectrometer (ICP-OES) Warning 1 --- Personnel using this document need to have practical experience in formal laboratory work. This document does not identify all possible security In case of safety issues, the user is responsible for taking appropriate safety and health measures and ensuring compliance with the conditions stipulated in the relevant national laws and regulations. Warning 2 --- The procedures specified in this document may involve the use or generation of some substances, or may generate some wastes. this It may cause local environmental hazards, and it is necessary to refer to the corresponding documents for safe handling and disposal after use.1 ScopeThis document describes the use of inductively coupled plasma optical emission spectrometry (ICP-OES) for the determination of major metal elements and Method for the content of trace metal elements. This document is applicable to the quantitative analysis of main metal elements and trace metal content in raw rubber and vulcanized rubber.2 Normative referencesThe contents of the following documents constitute the essential provisions of this document through normative references in the text. Among them, dated references For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to this document. ISO 123 latex sampling (Rubberlatex-Sampling) Note. GB/T 8290-2021 latex sampling (ISO 123.2001, MOD) Note. GB/T 8298-2017 Determination of total solid content of latex (ISO 124.2014, MOD) Note. GB/T 15340-2008 Natural and synthetic raw rubber sampling and sample preparation method (ISO 1795.2000, IDT) Note. GB/T 25269-2010 Guidelines for Calibration of Rubber Test Equipment (ISO 18899.2004, IDT)3 Terms and DefinitionsThis document does not have terms and definitions that need to be defined.4 principlesThe sample solution is atomized by a nebulizer to form an aerosol. The aerosol enters the high temperature region of inductively coupled plasma (8000°C~10000°C). The components to be measured in the sample are heated (excited) to form different states (atomized or ionized), and emit characteristic spectral lines of the contained elements. these spectra The lines are separated according to different wavelengths, and the light intensity is detected by a spectrometer. The light intensity is directly proportional to the concentration of the analyte. Compare Unknown Samples to Standards The light intensity of the sample was quantitatively analyzed by a multi-point linear calibration curve. See Appendix A for the excitation process of ICP-OES samples. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 41945-2022_English be delivered?Answer: Upon your order, we will start to translate GB/T 41945-2022_English as soon as possible, and keep you informed of the progress. The lead time is typically 2 ~ 4 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of GB/T 41945-2022_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 41945-2022_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. 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