Path:
Home >
SN/T >
Page7 > SN/T 3528-2013
| Std ID | Version | USD | Buy | Deliver [PDF] in | Title (Description) |
| SN/T 3528-2013 | English | 479 |
Add to Cart
|
3 days [Need to translate]
|
Import and export of sulfite and cosmetics bisulfite salts by ion chromatography
|
Click to Preview a similar PDF
Basic data
| Standard ID | SN/T 3528-2013 (SN/T3528-2013) |
| Description (Translated English) | Import and export of sulfite and cosmetics bisulfite salts by ion chromatography |
| Sector / Industry | Commodity Inspection Standard (Recommended) |
| Classification of Chinese Standard | Y42 |
| Classification of International Standard | 71.100.70 |
| Word Count Estimation | 12,185 |
| Quoted Standard | GB/T 601; GB/T 6682 |
| Regulation (derived from) | AQSIQ notification issued in 2013 on the first batch of 179 entry-exit inspection and quarantine of industry standards; industry standard for filing Notice 2013 No. 9 (No. 165 overall) |
| Issuing agency(ies) | General Administration of Customs |
| Summary | This standard specifies the import and export of cosmetics ion chromatographic method of sulfite and sulfite salts oxygen content [(3)) converted by sodium sulfite Na (2) SO, the total sulfur dioxide meter] of. This standard applies to body lotion, facial |
SN/T 3528-2013: Import and export of sulfite and cosmetics bisulfite salts by ion chromatography
---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 of sulfite and cosmetics bisulfite salts by ion chromatography
People's Republic of China Entry-Exit Inspection and Quarantine Standards
Import and export of sulfites and cosmetics
Bisulfite salts by ion chromatography
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 is proposed and managed by the National Certification and Accreditation Administration Committee.
This standard was drafted. People's Republic of China Shandong Entry-Exit Inspection and Quarantine Hubei People's Republic of China.
The main drafters of this standard. Huqiao Ru, Yang Lijun, Lv Peng, Wang Jing, COLLECE Essays spring, Li Yan.
Import and export of sulfites and cosmetics
Bisulfite salts by ion chromatography
1 Scope
This standard specifies the import and export of cosmetics of sulfites and bisulfite salt content [by sodium sulfite (Na2SO3) conversion, the total
Total sulfur dioxide] ion chromatographic method.
This standard applies to body lotion, facial cleanser, shampoo, sunscreen, liquid makeup, massage cream, facial mask of sulfite and bisulfite salts containing
Determination of the amount.
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 GB/T 601 chemical reagent standard titration solution
Laboratory use specifications and test methods GB/T 6682 Analysis
Principle 3
Sample of sulfite and bisulfite were extracted with acetonitrile and purified after centrifugation, potassium hydroxide solution as eluent anion
Exchange column separation, conductivity detector. Retention time qualitative, external standard.
4 Reagents
Unless otherwise specified, the reagents were of analytical grade, test water should be consistent with GB/T 6682 stipulated a water.
4.1 sodium sulfite (sodiumsulfite, molecular formula. Na2SO3, CASN o. 7757-83-7). purity ≥98%.
4.2 acetonitrile (CH3CN). chromatography.
4.3 Formaldehyde (HCHO, content 37.0% ~ 40.0%). pure class distinctions.
4.4 sodium sulfite standard solution (content of sulfur dioxide meter). Weigh 0.5g of sodium sulfite (4.1), placed in 100mL volumetric flask, add
Dissolved in water and diluted to the mark. Standard solution calibration method in Appendix A.
4.5 stock standard solution of sodium sulfite (content of sulfur dioxide meter). accurate Pipette sodium sulfite standard solution (4.4) 40mL to 100mL
Flask, was added 1.5mL of formaldehyde (4.3), and diluted with water to the mark. 0 ℃ ~ 4 ℃ under dark sealed Dates
1 month.
4.6 sodium sulfite standard solution (content of sulfur dioxide meter). accurate Pipette stock standard solution of sodium sulfite (4.5) 10.00mL to 100mL
Volumetric flask, dilute to the mark, shake. Using now.
4.7 nylon filter. 0.22μm.
4.8 RP column (1.0mL), or equivalent performance to remove organic materials prior to treatment cartridge, washed with 5mL of methanol prior to use (chromatography
Pure), 10mL water-activated, after 30min placement use.
...