Path:
Home >
GB/T >
Page84 > GB/T 29660-2013
Price & Delivery
US$209.00 · In stock · Download in 9 secondsGB/T 29660-2013: Determination of chromium in cosmetics
Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See
step-by-step procedureStatus: Valid
| Std ID | Version | USD | Buy | Deliver [PDF] in | Title (Description) |
| GB/T 29660-2013 | English | 209 |
Add to Cart
|
3 days [Need to translate]
|
Determination of chromium in cosmetics
|
Click to Preview a similar PDF
Basic data
| Standard ID | GB/T 29660-2013 (GB/T29660-2013) |
| Description (Translated English) | Determination of chromium in cosmetics |
| Sector / Industry | National Standard (Recommended) |
| Classification of Chinese Standard | Y42 |
| Classification of International Standard | 71.100.70 |
| Word Count Estimation | 9,913 |
| Quoted Standard | GB/T 6682 |
| Regulation (derived from) | National Standards Bulletin 2013 No. 17 |
| Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China |
| Summary | This standard specifies: flame atomic absorption spectrophotometry, determination of total chromium content in cosmetics by inductively coupled plasma mass spectrometry Method. This standard applies to: cosmetics total chromium content determined. When th |
GB/T 29660-2013: Determination of chromium in cosmetics
---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 chromium in cosmetics
ICS 71.100.70
Y42
National Standards of People's Republic of China
Determination of total chromium content in cosmetics
Issued on. 2013-09-06
2014-02-15 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This standard was drafted in accordance with GB/T 1.1-2009 given rules.
The standard proposed by China National Light Industry Council.
This standard by the National Standardization Technical Committee of Fragrance Flavor and Cosmetic (SAC/TC257) centralized.
This standard was drafted. Shanghai Daily Chemical Industry Institute (Fragrance Flavor and Cosmetic National Quality Supervision and Inspection Centre) (France)
Dalian City Product Quality Supervision, Inspection (National Day of Product Quality Supervision and Inspection Center) (second method).
The main drafters of this standard. Zhao Tong, Xuying Hong, Wu Xiaojian, Maoxi Qin, Lin Yan, Shen Min, Jiang Jun, Lee, Zheng Shunli, Li Haiyan.
Determination of total chromium content in cosmetics
1 Scope
This standard specifies the flame atomic absorption spectrophotometric determination of total chromium content in cosmetics by Inductively Coupled Plasma Mass Spectrometry
method.
This standard applies to the determination of total chromium in cosmetics. When the sample weight of 1g, the flame atomic absorption spectrophotometry for the detection limit
0.25mg/kg, limit of quantification was 0.83mg/kg; inductively coupled plasma mass spectrometry with a detection limit of 0.005mg/kg, the limit of quantification
Of 0.015mg/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.
Laboratory use specifications and test methods GB/T 6682 Analysis
3 The first flame atomic absorption spectrophotometry
3.1 Principle
Samples were pretreated chromium is present in the form of ions in the sample solution, the sample solution is atomized chromium ion in the ground state atomic absorption of chromium
Resonance line from chromium hollow cathode lamps emit, the absorbance is proportional to the chromium content in the sample. In other conditions remain unchanged, according to survey
Spectral intensity of the amount absorbed, compared with standard series quantified.
3.2 Reagents and materials
Unless otherwise specified, reagents were of analytical grade. Water as a water GB/T 6682 regulations.
3.2.1 nitric acid (ρ20 = 1.42g/mL), pure class distinctions.
3.2.2 nitrate (2.98 volume fraction). Take 20mL of nitric acid (3.2.1) added 980mL of water.
3.2.3 Hydrogen peroxide [w (H2O2) = 30%].
3.2.4 octanol.
3.2.5 national standard chromium in water [ρ (Cr) = 0.100g/L].
3.2.6 Chromium standard solution [ρ (Cr) = 10mg/L]. Take the national standard substances in water chromium [ρ (Cr) = 0.100g/L] 10.0mL placed
100mL volumetric flask, dilute to the mark with nitric acid (3.2.2).
3.3 instruments and equipment
3.3.1 atomic absorption spectrophotometer and accessories.
3.3.2 chromium hollow cathode lamp.
3.3.3 constant temperature water bath.
3.3.4 stoppered cuvette 25mL.
3.3.5 flask 25mL.
...
