GB/T 26368-2020 (GB/T26368-2020, GBT 26368-2020, GBT26368-2020) & related versions
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Hygienic requirements for iodine disinfectants
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| GB 26368-2010 | English | 239 |
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[GB/T 26368-2010] Hygienic standard for iodine disinfectants
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GB/T 26368-2020: PDF in English (GBT 26368-2020)
GB/T 26368-2020
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 11.080
C 50
Replacing GB/T 26368-2010
Hygienic requirements for iodine disinfectants
ISSUED ON: JUNE 02, 2020
IMPLEMENTED ON: DECEMBER 01, 2020
Issued by: State Administration for Market Regulation;
Standardization Administration of the People's Republic of
China.
Table of Contents
Foreword ... 3
1 Scope ... 5
2 Normative references ... 5
3 Terms and definitions ... 5
4 Raw material requirements ... 6
5 Technical requirements ... 7
6 Scope of application ... 8
7 Method for use ... 9
8 Packaging, transport and storage ... 9
9 Marking requirements ... 9
10 Inspection methods ... 10
Annex A (normative) Determination method for available iodine content ... 12
Annex B (normative) Determination method for polyvinylpyrrolidone content 14
Annex C (normative) Identification method for polyoxyethylene fatty alcohol
ether ... 17
Annex D (normative) Identification of alkylphenol polyoxyethylene ether by
infrared spectroscopy ... 19
Hygienic requirements for iodine disinfectants
1 Scope
This Standard specifies raw material requirements, technical requirements,
scope of application, method for use, packaging, transport and storage,
marking requirements and inspection methods for iodine disinfectants (iodine
tincture, iodophor) and compound iodine disinfectants.
This Standard is applicable to iodine tincture, iodophor and compound iodine
disinfectants that use available iodine as the main bactericidal ingredient, are
used for skin, mucous membrane and hand disinfection.
2 Normative references
The following referenced documents are indispensable for the application of
this document. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any
amendments) applies.
GB/T 191, Packaging and storage marks
GB 27950, Hygienic requirements for hand antiseptic agents
GB 27951, Hygiene requirements for skin disinfectant
GB 27954, General requirements for disinfectant of mucous membrane
Pharmacopoeia of the People's Republic of China (Volume II, 2015)
Pharmacopoeia of the People's Republic of China (Volume IV, 2015)
Technical standard for disinfection (2002) [Ministry of Health (issued by
Department of Legal Supervision, Ministry of Health [2002] No. 282)]
Technical specification for cosmetic safety (2015) (Announcement No. 268
of China Food and Drug Administration [2015])
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
7 Method for use
7.1 Iodine tincture
Use a sterile cotton swab to dip this product. Wipe the skin on the disinfected
area. Then use a cotton swab to dip in 75% medical ethanol to wipe and diiodine.
The action time shall meet the requirements of GB 27950 and GB 27951.
7.2 Iodophor and compound iodine disinfectants
According to the use concentration required in iodophor or compound iodine
disinfectant instructions, directly rinse or wipe the disinfected part. The action
time shall meet the requirements of GB 27950, GB 27951 and GB 27954.
7.3 Povidone iodine powder
According to the dilution method required by the product manual, use purified
water to dilute. Then rinse or wipe the disinfected part. The action time shall
meet the requirements of GB 27950, GB 27951 and GB 27954.
8 Packaging, transport and storage
8.1 Packaging materials shall meet the requirements of non-toxic packaging
materials. Use corrugated cardboard packaging box for external packaging. It
shall be tied firmly. Use normal transportation. Do not loose when loading-
unloading.
8.2 According to packaging requirements, conduct regular transportation. If
there are special requirements in storage, packaging, and transportation, it
must be indicated in the product manual or on the packaging box.
8.3 This product shall be stored in a cool and dark place at room temperature.
9 Marking requirements
9.1 Marks, labels and manual
The mark identification shall meet the requirements of GB/T 191. Label and
manual shall comply with the requirements of relevant specifications and
standards for label manual of disinfection products. Indicate the product name,
factory name and address, trademark, specifications, quantity, expiration date,
and storage conditions.
9.2 Precautions for manual
Annex A
(normative)
Determination method for available iodine content
A.1 Method One: Chemical titration method (arbitration method)
A.1.1 Test principle
In acid solution, use sodium thiosulfate titrant to directly titrate free iodine.
According to the dose of sodium thiosulfate, calculate the available iodine
content in the disinfectant. The reaction equation is:
A.1.2 Test reagents and equipment
A.1.2.1 Test reagents
Sodium thiosulfate titrant, 36% acetic acid solution, 5g/L starch solution
(prepared when required).
A.1.2.2 Test equipment
Pipette, acid burette, iodine measuring flask, electronic balance (resolution is
0.0001g).
A.1.3 Test method
Accurately weigh or draw an appropriate amount of iodine disinfectant, to make
it equivalent to 0.25g of available iodine. Place it in a 250mL iodine measuring
flask. Add 5 drops of acetic acid. Use sodium thiosulfate titrant to titrate. Shake
well while dripping. When the solution is light yellow, add 10 drops of 5g/L starch
solution (the solution immediately turns blue). Continue to titrate until the blue
color disappears. Record the total amount of sodium thiosulfate titrant used.
Conduct a blank test to correct the titration result. Test the sample twice. Take
the average of two times to calculate.
Because 1mL of 1mol/L sodium thiosulfate titrant is equivalent to 0.1269g of
available iodine, the available iodine content can be calculated according to
formula (A.1) and formula (A.2):
Annex B
(normative)
Determination method for polyvinylpyrrolidone content
B.1 Test principle
Polyvinylpyrrolidone has retention behavior on C18 reversed-phase
chromatography column. It can be separated from other components in the
sample. It has obvious UV absorption at 205nm wavelength. Therefore, an
ultraviolet absorption detector is used for detection. Based on the quantitative
relationship between the peak area and the concentration, determine the
content of the substance in the disinfectant.
B.2 Test reagents and equipment
B.2.1 Test reagents
Acetonitrile (chromatographic grade), ultrapure water.
B.2.2 Test equipment
High performance liquid chromatograph, electronic balance (resolution is
0.0001g), pipette, volumetric flask.
B.3 Chromatographic conditions
B.3.1 Chromatographic column: C18 column (4.6mm×150mm, 5μm).
B.3.2 Mobile phase: acetonitrile: water = 5: 95 (volume ratio).
B.3.3 Flow rate: 1.0mL/min.
B.3.4 UV detection wavelength: 205nm.
B.3.5 Column temperature: 20°C.
B.3.6 Injection volume: 20μL.
B.4 Test steps
B.4.1 Preparation of reference substance solution
Precisely weigh 0.1g of polyvinylpyrrolidone K30 reference substance in a
100mL volumetric flask. Add water to dissolve. Set constant volume to the scale.
Shake well to obtain the standard solution of which the concentration is
Annex C
(normative)
Identification method for polyoxyethylene fatty alcohol ether
C.1 Method principle
When using infrared to irradiate organic molecules, the chemical bond or
functional group in the molecule can absorb vibration. Different chemical bonds
or functional groups have different absorption frequencies. They will be in
different positions on the infrared spectrum, so as to get information about what
kind of chemical bond or functional group contained in the molecule.
C.2 Instruments and equipment
Fourier transform infrared spectrometer, rotary evaporator, eggplant bottle,
decompression pump, water bath.
C.3 Sample pretreatment and sample preparation
Take proper amount of sample in an eggplant-shaped bottle. Conduct vacuum
distillation to remove water so as to obtain the test sample. Take about 1.0mg
of dry test sample. Use KBr liquid film method tablet to determine infrared
spectrum. And compare with the comparison chart of polyoxyethylene fatty
alcohol ether-8.
C.4 Spectrum analysis
Figure C.1 is the infrared spectrum represented by polyoxyethylene fatty
alcohol ether-8. 2924cm-1, 2856cm-1, 1466cm-1 and 1378cm-1 in the figure show
alkyl absorption. −OH appears at 3476cm-1. The characteristic absorption
peaks of polyoxyethylene ether are 1350cm-1 (−CH2−non-planar rocking
vibration, medium intensity peak), 1116cm-1 (C−O−C asymmetric stretching, the
strongest peak), 947cm-1 (symmetric stretching Vibration, weaker), 885cm-1
(end group−CH2CH2OH−CH2−plane swing vibration), 844cm-1
(polyoxyethylene plane swing vibration in the middle).
The infrared spectra of polyoxyethylene fatty alcohol ethers with different
ethylene oxide addition numbers (EO numbers) show regular changes. It is
more obvious that the C−O−C asymmetric stretching band is a strong peak. It
increases with the increase of EO number. The position is slightly shifted to the
low wave number (from 1121cm-1 of EO number 3 to 1116cm-1 of EO number
11). The intensity of the symmetric stretch band also increases. The wave
number is stable around 949cm-1. In the alkyl group, 1378cm-1 peak wave
Annex D
(normative)
Identification of alkylphenol polyoxyethylene ether by infrared
spectroscopy
D.1 Method principle
When using infrared to irradiate organic molecules, the chemical bond or
functional group in the molecule can absorb vibration. Different chemical bonds
or functional groups have different absorption frequencies. They will be in
different positions on the infrared spectrum, so as to get information about what
kind of chemical bond or functional group contained in the molecule.
D.2 Instruments and reagents
Fourier transform infrared spectrometer, rotary evaporator, eggplant bottle,
decompression pump, water bath.
D.3 Sample pretreatment and sample preparation
Take proper amount of sample in an eggplant-shaped bottle. Conduct vacuum
distillation to remove water to obtain the test sample. Take about 1.0mg of dry
test sample. Use KBr liquid film method tablet to determine infrared spectrum.
And compare with the comparison chart of nonylphenol polyoxyethylene ether-
10.
D.4 Spectrum analysis
Figure D.1 is the infrared spectrum of nonylphenol polyoxyethylene ether-10
(NP-10). In addition to showing the characteristic absorption peaks of
polyoxyethylene, there are also benzene ring vibration peaks 1609cm-1 and
1512cm-1 sharp peaks. Para-substitute 832cm-1 peak, aromatic ether C−O−C
1249cm-1 characteristic peak. The strong absorption peak of C−O−C in EO
appears at 1116cm-1. NP with different EO numbers is in the range of 1640cm-
1~600cm-1. The absorption intensity of the correlation peak changes. It can be
used to quantitatively calculate its EO number.
......
| Standard ID | GB/T 26368-2020 (GB/T26368-2020) | | Description (Translated English) | Hygienic requirements for iodine disinfectants | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | C50 | | Classification of International Standard | 11.080 | | Word Count Estimation | 14,166 | | Date of Issue | 2020-06-02 | | Date of Implementation | 2020-12-01 | | Drafting Organization | Chinese People's Liberation Army Center for Disease Control and Prevention, Guangzhou Customs Technical Center, Guangdong Provincial Center for Disease Control and Prevention, China Center for Disease Control and Prevention, Environmental and Health-Related Product Safety Institute | | Administrative Organization | National Health Commission of the People's Republic of China | | Proposing organization | National Health Commission of the People's Republic of China | | Issuing agency(ies) | State Administration for Market Regulation, National Standardization Administration |
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