SN/T 1478-2024 English PDFSN/T 1478: Historical versions
Basic dataStandard ID: SN/T 1478-2024 (SN/T1478-2024)Description (Translated English): (Determination of titanium dioxide in imported and exported cosmetics) Sector / Industry: Commodity Inspection Standard (Recommended) Classification of Chinese Standard: Y42 Classification of International Standard: 71.100.70 Date of Issue: 2024-12-16 Date of Implementation: 2025-06-01 Issuing agency(ies): General Administration of Customs SN/T 1478-2004: Determination of titanium dioxide in cosmetics. ICP-AES---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 titanium dioxide in cosmetics.ICP-AES Book of the People's Republic of China Entry and Exit Inspection and Quarantine Method for detecting titanium dioxide content in cosmetics ICP-AES method ICP-AES Released on November 11,.2004 2005-04-01 implementation People's Republic The General Administration of Quality Supervision, Inspection and Quarantine issued ForewordThis standard is proposed and managed by the National Certification and Accreditation Administration. This standard was drafted by the China Academy of Inspection and Quarantine. The main drafters of this standard. Wang Xing, Li Xiang, Wang Chao, Zhang Qing. This standard is the first industry standard for entry-exit inspection and quarantine. Method for detecting titanium dioxide content in cosmetics ICP-AES method1 ScopeThis standard specifies the method for determination of titanium dioxide in cosmetics. This standard applies to the inspection of titanium dioxide content in cosmetics.2 Method summaryThe sample was digested with a mixed acid of sulfuric acid and nitric acid to clarify the sample solution, and then made up to volume with water, and the content was determined by ICP-AES.3 reagentsUnless otherwise stated, the reagents used were of analytical grade and the water was deionized water. 3.1 Nitric acid (ρ20=1.42g/mL). 3.2 Sulfuric acid (ρ20=1.84g/mL). 3.3 Hydrofluoric acid (ρ20=1.13g/mL). 3.4 Sulfuric acid (5%, volume fraction). 5 mL of sulfuric acid (3.2) was slowly added to 95 mL of water. 3.5 Standard stock solution of titanium. Weigh 0.5000g of titanium metal (99.99%) in a platinum dish, dissolve it with hydrofluoric acid (3.3), sulfuric acid (3.2), add The heat is evaporated to the sulfur trioxide white smoke to remove the fluorine. Dissolve in 5% (volume fraction) sulfuric acid (3.4) and bring to volume in a 500 mL volumetric flask. this The solution contained titanium 1 mg/mL. 3.6 Titanium standard series. Titanium standard stock solution is diluted with 5% (volume fraction) sulfuric acid (3.4) and made into titanium containing 0.0μg/mL. A standard series of solutions of 1.0 μg/mL, 10.0 μg/mL, and 100.0 μg/mL.4 Instruments and equipmentICP-AES spectrometer.5 Analysis steps5.1 Sample processing According to the content of titanium dioxide in the sample, weigh 0.02g ~ 0.2g sample, accurate to 1mg, in a 50mL beaker, add 5mL nitric acid (3.1), 3mL sulfuric acid (3.2) covered the watch, slowly digested on the electric stove until the sulfur trioxide white smoke (the remaining in the beaker) 2.5 mL of sulfuric acid), the sample is digested to clarification (if black carbonization occurs, carefully add nitric acid while covering the watch). Take off the cold However, make up to 50mL volumetric flask with water (concentrated sulfuric acid in the cup, be careful). Also do a blank experiment. 5.2 Determination 5.2.1 Instrument conditions According to the instrument operating procedures, the working conditions of the instrument can also be adjusted. 5.2.2 Reference conditions 5.2.2.1 Frequency. 40MHz. 5.2.2.2 RF power. 1300W. 5.2.2.3 Auxiliary gas. 0.5L/min. 5.2.2.4 Cooling gas. 15L/min. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of SN/T 1478-2024_English be delivered?Answer: Upon your order, we will start to translate SN/T 1478-2024_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of SN/T 1478-2024_English with my colleagues?Answer: Yes. 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Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version SN/T 1478-2024 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically. |
