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SN/T 3520-2013: Determination of mercury in rubber and rubber products. Atomic fluorescence spectrometric method
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| Std ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status |
| SN/T 3520-2013 | English | 209 |
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Determination of mercury in rubber and rubber products. Atomic fluorescence spectrometric method
| Valid |
Basic data
| Standard ID | SN/T 3520-2013 (SN/T3520-2013) |
| Description (Translated English) | Determination of mercury in rubber and rubber products. Atomic fluorescence spectrometric method |
| Sector / Industry | Commodity Inspection Standard (Recommended) |
| Classification of Chinese Standard | G40 |
| Classification of International Standard | 83.060 |
| Word Count Estimation | 8,823 |
| Quoted Standard | GB/T 602; GB/T 6379.2; GB/T 6682-2008; GB/T 15340 |
| Regulation (derived from) | ?AQSIQ About publishing 2013 First Batch 179-items Entry-Exit Inspection and Quarantine industry standard Announcement; Industry-Standard-Filing Announcement 2013 No. 9 (Total No. 165) |
| Issuing agency(ies) | General Administration of Customs |
| Summary | This standard specifies the determination of natural latex Atomic Fluorescence Spectrometry, mix and vulcanized rubber and its products in the mercury content of the method, raw rubber. This standard applies to natural rubber latex, mix and vulcanized rub |
SN/T 3520-2013: Determination of mercury in rubber and rubber products. Atomic fluorescence spectrometric 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.
Determination of mercury in rubber and rubber products. Atomic fluorescence spectrometric method
People's Republic of China Entry-Exit Inspection and Quarantine Standards
Rubber - Determination of mercury in its products
Atomic Fluorescence Spectrometry
Issued on. 2013-03-01
2013-09-16 implementation
People's Republic of China
The State Administration of Quality Supervision, Inspection and Quarantine released
Foreword
This standard was drafted in accordance with GB/T 1.1-2009 given rules.
This standard by the National Certification and Accreditation Administration Committee.
This standard was drafted. People's Republic of China Guangdong Entry-Exit Inspection and Quarantine Huizhou People's Republic of China
Bureau, Guangzhou Institute of Rubber Industry products.
The main drafters of this standard. Liuchong Hua Shen Xiao Luan, Zhou Xiaoli, Zhao Quan, Zhaoyan Fen Huang Li Na, Zhong Zhiguang.
Rubber - Determination of mercury in its products
Atomic Fluorescence Spectrometry
1 Scope
This standard specifies the method for determining natural latex, raw rubber, rubber compounds and vulcanized rubber products and mercury content by atomic fluorescence spectrometry.
This standard applies to natural rubber latex, determination of raw rubber, rubber compounds and vulcanized rubber products and mercury in measuring range
0.1mg/kg ~ 1000mg/kg.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
Preparation of standard solution of GB/T 602 Determination of impurities in chemical reagents
GB/T 6379.2 measurement methods and results of Accuracy (trueness and precision) - Part 2. Determine the standard measurement method to repeat
Of the basic methods of reproduction
Laboratory use specifications and test methods GB/T 6682-2008 Analysis
GB/T 15340 natural, synthetic rubber raw sampling and sample preparation method
3 Method summary
Sample addition of nitric acid, hydrogen peroxide mixed reagent microwave digestion solution was diluted after digestion with hydrochloric acid, potassium borohydride was added to make it
Reduced to atomic mercury, mercury by the carrier gas into the atomizer directly by atomic fluorescence spectrometer detection. Determining mercury element according to external standard curve
Pigment content.
4 Reagents
Unless otherwise specified, use only pure reagents superior grade and in line with a water GB/T 6682-2008 requirements.
4.1 nitric acid (ρ = 1.42g/mL).
4.2 Hydrogen peroxide (ρ = 1.10g/mL).
4.3 nitric acid solution (19).
4.4 hydrochloric acid solution (119).
4.5 mercury standard solution (1000μg/mL). according to GB/T 602 formulated or direct purchase of certified reference materials.
4.6 mercury standard solution (10μg/mL). draw 1.0mL mercury standard solution (4.5) in 100mL flask, with nitric acid (4.3) dilute
Diluted to volume, and mix. This solution 1mL containing mercury 10μg.
4.7 mercury standard solution (0.1μg/mL). draw 1.0mL mercury standard solution (4.6) in 100mL flask, with nitric acid (4.3) dilute
Diluted to volume, and mix. This solution 1mL containing mercury 0.1μg.
4.8 Mercury series of standard solution. Pipette mercury standard stock solution (4.7) 0mL, 2.0mL, 4.0mL, 8.0mL, 10.0mL,
With hydrochloric acid (4.4) and dilute to 100mL, and mix. Having a concentration of 0μg/L, 2μg/L, 4μg/L, 8μg/L, 10μg/L mercury standard series
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