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SN/T 2404-2009: Determination of 2-methyl-4-isothiazolin-3-one and its derivatives in toys
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| SN/T 2404-2009 | English | 259 |
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Determination of 2-methyl-4-isothiazolin-3-one and its derivatives in toys
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SN/T 2404-2009
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Basic data | Standard ID | SN/T 2404-2009 (SN/T2404-2009) | | Description (Translated English) | Determination of 2-methyl-4-isothiazolin-3-one and its derivatives in toys | | Sector / Industry | Commodity Inspection Standard (Recommended) | | Classification of Chinese Standard | Y57 | | Classification of International Standard | 97.200.50 | | Word Count Estimation | 10,118 | | Date of Issue | 2009-09-02 | | Date of Implementation | 2010-03-16 | | Quoted Standard | GB/T 6682 | | Adopted Standard | EN 71-10-2005, MOD; EN 71-11-2005, MOD | | Regulation (derived from) | Entry-Exit Inspection and Quarantine circular industry standards (2009. 09. 02) | | Issuing agency(ies) | General Administration of Customs | | Summary | This standard specifies the toys can contact with the liquid and leather, modeling clay, adhesive stickers with toys in preservative liquid chromatographic method. This standard applies to toys can contact with the liquid and leather, modeling clay, etc. with adhesive stickers toy materials Determination of anti-government agent. | SN/T 2404-2009: Determination of 2-methyl-4-isothiazolin-3-one and its derivatives in toys---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 2-methyl-4-isothiazolin-3-one and its derivatives in toys
Exit inspection and quarantine industry standard book People's Republic of China
Toys preservatives methyl-4-isothiazolin-3-one
Determination and derivatives
Posted 2009-09-02
2010-03-16 implementation
People's Republic of China
The State Administration of Quality Supervision, Inspection and Quarantine released
Foreword
The reference to the standard EN71-10.2005 "organic sample preparation and extraction" (in English) section 8.2.3,8.5.3,
8.7.3,8.9.3 and EN71-11.2005 "method of analysis of organic compounds" (in English) in section 5.7.
The Standard Appendix A, Appendix B, Appendix C are informative appendices.
This standard is proposed and managed by the National Certification and Accreditation Administration Committee.
This standard was drafted. China Inspection and Quarantine Science Research Institute, People's Republic of China Yangzhou Exit Inspection and Quarantine.
The main drafters of this standard. birch, Zheng Jianguo, Chen Wei, Dong Yiyang, Juan.
This standard is the first release of the entry-exit inspection and quarantine industry standards.
Toys preservatives methyl-4-isothiazolin-3-one
Determination and derivatives
1 Scope
This standard specifies the toys can contact with the liquid and leather, modeling clay, with adhesive stickers toys preservative liquid chromatography
test methods.
This standard applies to toys may contact with the liquid and leather, modeling clay, stickers etc. toy material with adhesive preservatives
Determination.
2 Normative references
The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent
Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research
Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
Laboratory use specifications and test methods GB/T 6682 Analysis
Principle 3
Deionized water was extracted as an analog toys preservatives (see Appendix A), extract after centrifugation, by high performance liquid chromatography
Method was measured. According to their retention time qualitative, external standard.
4 Reagents and materials
Unless otherwise indicated, the reagents used were of analytical grade, test water should be consistent with GB/T 6682 a water standards.
4.1 Methanol. chromatographically pure.
4.2 acetic anhydride.
4.3 acetic acid solution. Pipette formulated into 0.4% acetic acid (by volume) acetic acid solution.
4.4 1,2-isothiazolin-3-one standard substance. purity greater than or equal to 97%.
4.5 2-methyl-4-isothiazolin-3-one standard substance. purity greater than or equal to 99%.
4.6 5-chloro-2-methyl-4-isothiazolin-3-one (1.2%)/2-methyl-4-isothiazolin-3-one (0.3%) standard substance.
Note. 5-chloro-2 content isothiazolin-3-one and 2-methyl-4-methyl-4-isothiazolin-3-one suppliers and purity is determined by batch.
4.7 Phenol standard substance. not less than 99% purity.
4.8 1,2-isothiazolin-3-one standard stock solution. accurately weighed amount 1,2-isothiazolin-3-one reference material (accurate to
0.1mg), acetic acid solution (4.3) formulated at a concentration of 100mg/L of standard stock solution.
4.9 2-methyl-4-isothiazolin-3-one standard stock solution. accurately weighed amount of 2-methyl-4-isothiazolin-3-one reference material (accurate to
0.1mg), acetic acid solution (4.3) formulated at a concentration of 100mg/L of standard stock solution.
4.10 5-chloro-2-methyl-4-isothiazolin-3-one standard stock solution (120mg/L). accurately weighed amount 5-chloro-2-methyl-isothiazol
Standards-3-one (accurate to 0.1mg), acetic acid solution (4.3) formulated at a concentration of 120mg/L of standard stock solution.
4.11 Phenol standard stock solution. accurately weighed amount of 5-chloro-2-methyl-4-isothiazolin-3-one reference material (accurate to 0.1mg), to
Acetic acid solution (4.3) formulated at a concentration of 1000mg/L of standard stock solution.
5 instruments and equipment
5.1 High performance liquid chromatograph. equipped with a UV detector.
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