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SN/T 4022-2014 English PDF

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SN/T 4022-2014: Import and export textiles. Determination of trace lead Nano-titanium dioxide enrichment-ICP-AES method
Status: Valid

Standard ID	Contents [version]	USD	STEP2	[PDF] delivered in	Standard Title (Description)	Status	PDF
SN/T 4022-2014	English	209	Add to Cart	3 days [Need to translate]	Import and export textiles. Determination of trace lead Nano-titanium dioxide enrichment-ICP-AES method	Valid	SN/T 4022-2014

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Basic data

Standard ID	SN/T 4022-2014 (SN/T4022-2014)
Description (Translated English)	Import and export textiles. Determination of trace lead Nano-titanium dioxide enrichment-ICP-AES method
Sector / Industry	Commodity Inspection Standard (Recommended)
Classification of Chinese Standard	W55
Classification of International Standard	59.080
Word Count Estimation	8,859
Date of Issue	4/9/2014
Date of Implementation	11/1/2014
Quoted Standard	GB/T 3922; GB/T 6682
Regulation (derived from)	State inspection certification (2014) 210
Issuing agency(ies)	General Administration of Customs
Summary	This standard specifies the nano textiles extractable heavy metals lead (Pb) content of titanium dioxide enrichment - inductively coupled plasma emission spectrometry method. This standard applies to the determination of heavy metals in textiles extractab

SN/T 4022-2014: Import and export textiles. Determination of trace lead Nano-titanium dioxide enrichment-ICP-AES 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.
Import and export textiles. Determination of trace lead Nano-titanium dioxide enrichment-ICP-AES method People's Republic of China Entry-Exit Inspection and Quarantine Standards Determination of trace lead in import and export of textiles Nano-titanium dioxide enrichment - Inductively Coupled Plasma Atomic Emission Spectrometry Issued on. 2014-04-09 2014-11-01 implementation People's Republic of China The State Administration of Quality Supervision, Inspection and Quarantine released

Foreword

This standard is prepared in accordance with GB/T 1.1-2009 given rules. This standard is proposed and managed by the National Certification and Accreditation Administration Committee. This standard was drafted. People's Republic of China Beijing Entry-Exit Inspection and Quarantine Bureau, Intertek (Tianjin) Quality Technology Services Limited. The main drafters of this standard. Tang Xiaoping, Liu Yang, Wang Jing, Han Jing, Wang Qiang, Cui Shasha, seats and then Juan, Wang Haiqi, Yu Tao, its seedlings come, Zhang Lei, Zhou Zhengyu, Zhu Linping, Yanlan Zhen, Hu Yajie, Yin Wang Chao. Determination of trace lead in import and export of textiles Nano-titanium dioxide enrichment - Inductively Coupled Plasma Atomic Emission Spectrometry Warning. Use of this standard shall have a person experiences regular laboratory work. This standard does not point out all possible security issues. Users have the responsibility to take appropriate safety and health practices and to ensure compliance with the conditions relevant national regulations.

1 Scope

This standard specifies the textile extractable heavy metals lead (Pb) content of titanium dioxide enrichment - inductively coupled plasma optical emission Spectroscopy methods. This standard applies to textile extractable heavy metals lead (Pb) determination of the content range. 0.1mg/kg ~ 2mg/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. GB/T 3922 Textiles Tests for color fastness color fastness to perspiration Laboratory use specifications and test methods GB/T 6682 Analysis Principle 3 After extraction with acidic sweat sample was added titanium dioxide in the extract with a small amount of hydrochloric acid adsorbed on nano-titanium dioxide Lead Elution by inductively coupled plasma emission spectrometer eluent lead content.

4 Reagents and materials

Unless otherwise specified, use only pure reagents superior grade and in line with two water GB/T 6682 regulations. 4.1 of concentrated nitric acid. mass fraction of 65% to 68%. 4.2 of concentrated hydrochloric acid. mass fraction of 36% to 38% electronic grade. 4.3 nano-titanium dioxide (TiO2). white powder, average particle size ≤25nm, specific surface area of 60m2/g ~ 75m2/g, containing titanium dioxide The amount of 99.5%. Approach. nano TiO2 placed in 100mL beaker, add 30% nitric acid solution (4.4), and the solution of nitric acid have not seen Nano TiO2, soak 30min, stirring occasionally, with ultrapure water to neutral, filtration. After repeat once, dried at 100 ℃, avoid Light save and set aside. 4.4 30% nitric acid solution. Measure 300mL of concentrated nitric acid (4.1), and slowly poured into 700mL water and stirred for mixing. 4.5 10% nitric acid solution. Measure 100mL of concentrated nitric acid (4.1), and slowly poured into 900mL of water, stirring to mix. 4.6 4% hydrochloric acid solution. Measure 40mL of concentrated hydrochloric acid (4.2), and slowly poured into 960mL water and stirred for mixing. 4.7 acidic sweat. preparing an acidic sweat under GB/T 3922, the test solution should be using now. 4.8 Lead (Pb) standard stock solution (100μg/mL). You can use certified reference materials or formulated as follows. Weigh 0.160g pin lead acid [Pb (NO3) 2], dissolved 10mL10% nitric acid solution (4.5) and transferred to 1000mL volumetric flask,

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