GB/T 33046-2016 English PDF

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GB/T 33046-2016: Rubber products -- Determination the content of cobalt -- Atomic absorption spectrometry
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 33046-2016	119	Add to Cart	2 days	Rubber products -- Determination the content of cobalt -- Atomic absorption spectrometry	Valid

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Basic data

Standard ID: GB/T 33046-2016 (GB/T33046-2016)
Description (Translated English): Rubber products -- Determination the content of cobalt -- Atomic absorption spectrometry
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G40
Classification of International Standard: 83.060
Word Count Estimation: 6,629
Date of Issue: 2016-10-13
Date of Implementation: 2017-05-01
Regulation (derived from): National Standard Notice No.1716 of 2016
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China

GB/T 33046-2016: Rubber products -- Determination the content of cobalt -- Atomic absorption spectrometry

---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.
Rubber products - Determination of content of cobalt - Atomic absorption spectrometry ICS 83.060 G40 National Standards of People's Republic of China Rubber products - Determination of cobalt content Atomic Absorption Spectrometry 2016-10-13 released 2017-05-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China China National Standardization Management Committee released

Foreword

This standard is drafted in accordance with the rules given in GB/T 1.1-2009. This standard is proposed by the China Petroleum and Chemical Industry Association. This standard by the National Rubber and Rubber Products Standardization Technical Committee (SAC/TC35) centralized. The drafting unit of this standard. Guangzhou South China Rubber Tire Co., Ltd., Beijing Rubber Industry Research and Design Institute, Guangzhou Synthetic Materials Research Institute Co., Ltd., 赛 round Jinyu Group Co., Ltd., Shenyang Chemical School, Shandong Linglong Tire Co., Ltd. The main drafters of this standard. Liang Yaping, Yue Min, Tan Hongyang, Li Xiaoyuan, Wang Yi, Luan Dewen, Zhou Xiuliang, Li Haiyan, Zhang Liping. Rubber products - Determination of cobalt content Atomic Absorption Spectrometry WARNING. Personnel using this standard should have practical experience in formal laboratory work. This standard does not address all possible security issues, It is the responsibility of the user to take appropriate safety and health measures and to ensure compliance with the conditions set forth in the relevant national regulations.

1 Scope

This standard specifies the method of atomic absorption spectrometry for the determination of cobalt content in rubber products. This standard applies to the determination of cobalt content in rubber or vulcanized rubber products.

2 normative reference documents

The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article Pieces. For undated references, the latest edition (including all modifications) applies to this document. GB/T 6682 Analytical laboratory water specifications and test methods Testing methods for rubber and rubber products - Determination of standard precision

3 principle

The rubber or rubber products ashing samples, ash dissolved in nitric acid, the preparation of the appropriate concentration of the solution, and then into the atomic absorption of light The air of the spectrometer - the acetylene flame or the sample is produced by an atomization system such as electric heating to produce sample vapor. The ground state atoms of cobalt elements in steam Absorption of cobalt hollow cathode lamp emitted by the characteristics of electromagnetic radiation, by measuring the absorbance of cobalt atoms to quantify the determination of cobalt content.

4 reagent

4.1 The reagents used in this method, when not specified other requirements, the use of excellent pure reagent. This method uses GB/T 6682 Secondary water. 4.2 Nitric acid. ρ = 1.42 g/mL. 4.3 Nitric acid solution. 1 1. 4.4 Nitric acid solution. 1 100. 4.5 Sulfuric acid. ρ = 1.84 g/mL. 4.6 cobalt powder. pure spectrum. 4.7 cobalt standard solution (1000mg/L) 1000mg/L cobalt standard solution is available in two ways. Method 1. Weigh 1.000 g of cobalt powder (accurate to 0.1mg), placed in a beaker, add 20.00mL nitric acid (4.2), heating dissolved completely, After cooling into the 1000mL volumetric flask, diluted with nitric acid solution (4.4) to the scale, shake. Method two. direct purchase of commercially available 1000mg/L cobalt nitrate standard solution. 4.8 Cobalt standard solution (100mg/L) Remove 10.00 mL of cobalt standard solution (4.7) in a 100 mL volumetric flask, dilute to the mark with nitric acid solution (4.4) and shake well. ......

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