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GB 27599-2011 English PDF (GB27599-2011)

GB 27599-2011 English PDF (GB27599-2011)

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GB 27599-2011: Titanium dioxide for cosmetic use

This Standard specifies the classification, requirements, test methods, inspection rules, marks, labels, packaging, transportation and storage of the titanium dioxide for cosmetic use.
GB 27599-2011
GB
NATIONAL STANDARD OF THE
PEOPLE REPUBLIC OF CHINA
ICS 71.060.20
G 13
Titanium dioxide for cosmetic use
ISSUED ON. DECEMBER 5, 2011
IMPLEMENTED ON. AUGUST 1, 2012
Issued by. General Administration of Quality Supervision, Inspection and Quarantine of the PEOPLE Republic of China;
Standardization Administration of the PEOPLE Republic of
China.
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative references ... 4
3 Molecular formula and relative molecular mass ... 5
4 Classification and types ... 5
5 Requirements ... 5
6 Test method ... 6
7 Inspection rules ... 11
8 Marks and labels ... 12
9 Packaging, transportation and storage ... 12
Foreword
The four indexes in Chapter 5, namely heavy metals, arsenic, lead and
mercury, AND Chapter 8 of this Standard are mandatory; while others are recommended.
This Standard is drafted according to the rules given in GB/T 1.1-2009. This Standard was proposed by China Petroleum and Chemical Industry
Federation.
This Standard shall be under the jurisdiction of the Inorganic Chemical Subcommittee of National Technical Committee for Standardization of
Chemistry (SAC/TC 63/SC 1).
Drafting organizations of this Standard. Shanghai Jianghu Titanium White Product Co., Ltd, CNOOC Tianjin Chemical Research and Design Institute, Jiangsu Hehai Nanometer Science and Technology Co., Ltd, and Henan
Billions Chemicals Co., Ltd.
Main drafters of this Standard. Xie Yiyuan, Wang Zhaoyuan, Guo Yongxin, Fan Guoqiang, Xu Binhai and Chen Jianli.
Titanium dioxide for cosmetic use
1 Scope
This Standard specifies the classification, requirements, test methods, inspection rules, marks, labels, packaging, transportation and storage of the titanium dioxide for cosmetic use.
This Standard is applicable to the titanium dioxide powder mainly used as cosmetic raw materials.
2 Normative references
The following documents are essential to the application of this document. For dated references, only the editions with the dates indicated are applicable to this document. For undated references, only the latest editions (including all the amendments) are applicable to this document.
GB/T 191-2008 Packaging - Pictorial marking for handling of goods
GB/T 1706-2006 Titanium dioxide pigments
GB/T 5009.74-2003 Method for limit test of heavy metals in food additives GB/T 6679 General rules for sampling solid chemical products
GB/T 6682-2008 Water for analytical laboratory use - Specification and test methods
GB/T 7917.1-1987 Standard methods of hygienic test for cosmetics -
Mercury
GB/T 7917.2-1987 Standard methods of hygienic test for cosmetics - Arsenic GB/T 7917.3-1987 Standard methods of hygienic test for cosmetics - Lead GB/T 8170 Rules of rounding off for numerical values & expression and
judgement of limiting values
GB/T 9086-2007 The white standard plate for colorimetry and photometry
GB/T 19591-2004 Nano-titanium dioxide
USE the visual observation method to determine the appearance in natural light. 6.4 Identification test
6.4.1 Reagents
6.4.1.1 Sulfuric acid.
6.4.1.2 Hydrogen peroxide solution. 20%.
6.4.2 Analysis procedures
WEIGH about 0.5g of test samples. ADD 5mL of sulfuric acid. CONDUCT slow heating until the sulfuric acid generates smog. After cooling, cautiously USE water to dilute to 100mL. FILTER afterwards. TAKE about 5mL of filtrate afterwards. ADD a few drops of hydrogen peroxide solution. The filtrate becomes orange red.
6.5 Crystal form determination
6.5.1 Instrument
X-ray diffractometer. The power of the X-ray generator can come up to (40kV / 40mA).
6.5.2 Analysis procedures
CONDUCT tableting to the samples according to the requirements of the X-ray diffractometer. DETERMINE afterwards. ADJUST the diffractometer gain so that the diffraction peak height of the crystal surface to be determined comes up to the maximum value within the recording range. The angle shall be within the range of 20?? to 80??. OBSERVE the position of the characteristic diffraction peak of the crystal surface to be determined (for the anatase type, the angle is 25?? or so; for the rutile type, the angle is 27?? or so), so as to determine the crystal forms of the samples.
6.6 Determination of the titanium dioxide content - aluminum reduction
method
6.6.1 Method summary
Same as the Section 7.1.1 of GB/T 1706-2006.
6.6.2 Reagents and materials
Same as the Section 7.1.2 of GB/T 1706-2006.
6.6.3 Instruments and equipment
m - Numerical values of the masses of specimens before ignition, in unit of gram (g).
TAKE the arithmetic mean value of the parallel determination results as determination result. The absolute difference of two parallel determination results shall not be greater than 0.05%.
6.9 Determination of the water-soluble matters
Same as the Section 7.3 of GB/T 1706-2006.
6.10 Determination of the heavy metal content
6.10.1 Method summary
Same as the Chapter 2 of GB/T 5009.74-2003.
6.10.2 Reagents
6.10.2.1 Hydrochloric acid. 1 + 19.
6.10.2.2 Acetic acid solution. 1 + 19.
6.10.2.3 Other reagents are the same with those in the Chapter 3 of GB/T 5009.74-2003.
6.10.3 Instruments and equipment
Same as the Chapter 4 of GB/T 5009.74-2003.
6.10.4 Analysis procedures
6.10.4.1 Preparation of the test solution A
WEIGH 10.0g ?? 0.1g of the test samples. PLACE the test samples in a 250mL beaker. ADD 50mL of hydrochloric acid. HEAT to boiling. Slowly BOIL for 15min. USE the centrifugal separation method for the settlement of insoluble matters. USE qualitative filter paper to filter the supernatant. USE 10mL of hot water to wash the beaker and residues. Repeatedly WASH for 3 times. USE 10mL to
15mL of hot water to flush the filter paper eventually. After cooling, TRANSFER all the collected filtrate and washing liquid to a 100mL volumetric flask. ADD water to the scale. SHAKE evenly. USE this solution as test solution A. KEEP this solution for the determination of heavy metals, arsenic, lead and mercury. 6.10.4.2 Determination
TAKE 10mL of test solution A. PLACE it in a 50mL Nessler colorimetric tube. ADD one drop of phenolphthalein indicator solution. Dropwise ADD ammonia powder dish. USE a bright and clean glass plate to cover on the surface of the test samples. COMPRESS the test samples. Slightly ROTATE the test samples afterwards. REMOVE the glass plate. Or USE a constant pressure powder
sampler for pressure sampling. OBSERVE the surface of the test samples
along the horizontal direction. There shall be no abnormal situations, such as bumps, defects, spots, etc.
PLACE the sample dish on the instrument platform. DETERMINE the Hunter
whiteness value (Wh). ACCURATE to 0.1. ROTATE the sample dish on the
instrument platform for 90??. DETERMINE the whiteness value. ACCURATE to 0.1. ROTATE for 90?? again. DETERMINE the whiteness value. ACCURATE to
0.1. The range of three readings shall not be greater than 0.5.
TAKE the arithmetic mean value of the parallel determination results as determination result. The absolute difference of two parallel determination results shall not be greater than 1.
6.16 Fineness determination
The fineness (< 45??m) determination is the same with the Section 7.4 of GB/T 1706-2006.
6.17 Determination of the mean grain size
6.17.1 Instrument
X-ray diffractometer. The comprehensive stability shall be greater than 1%. The goniometer accuracy shall be greater than 0.001??.
6.17.2 Analysis procedures
Same as the Section 5.6 of GB/T 19591-2004.
6.18 Determination of the UV transmittance
It is allowed to conduct the determination of the UV transmittance according to the methods in the agreement.
7 Inspection rules
7.1 All the items specified in the requirements of this Standard are exit-factory inspection items, which shall be conducted with lot-by-lot inspection.
7.2 The same level of titanium dioxide for cosmetic use, which are produced by using the same materials under basically the same production conditions,

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