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YC/T 253-2019: (Cigarettes Determination of hydrogen cyanide in mainstream smoke Continuous flow method)
Status: Valid YC/T 253: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| YC/T 253-2019 | English | 169 |
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(Cigarettes Determination of hydrogen cyanide in mainstream smoke Continuous flow method)
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YC/T 253-2019
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| YC/T 253-2008 | English | 319 |
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Cigarettes. Determination of hydrogen cyanide in cigarette mainstream smoke. Continuous flow method
| Obsolete |
YC/T 253-2008
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PDF similar to YC/T 253-2019
Basic data | Standard ID | YC/T 253-2019 (YC/T253-2019) | | Description (Translated English) | (Cigarettes Determination of hydrogen cyanide in mainstream smoke Continuous flow method) | | Sector / Industry | Tobacco Industry Standard (Recommended) | | Classification of Chinese Standard | X87 | | Classification of International Standard | 65.160 | | Word Count Estimation | 7,760 | | Date of Issue | 2019 | | Date of Implementation | 2020-01-15 | | Issuing agency(ies) | State Tobacco Monopoly Administration | YC/T 253-2019: (Cigarettes Determination of hydrogen cyanide in mainstream smoke Continuous flow method)
---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.
(Cigarettes Determination of hydrogen cyanide in mainstream smoke Continuous flow method)
ICS 65.160
X87
People's Republic of China Tobacco Industry Standard
Replace YC/T 253-2008
Determination of hydrogen cyanide in mainstream cigarette smoke
Continuous flow method
2019-12-26 released
2020-01-15 implementation
Issued by the State Tobacco Monopoly Administration
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009 and GB/T.20001.4-2015.
This standard replaces YC/T 253-2008 "Continuous flow method for the determination of hydrogen cyanide in mainstream cigarette smoke". With YC/T 253-
Compared with.2008, the main technical changes except for editorial changes are as follows.
---Modified reagents and materials (see Chapter 4, Chapter 4 of the.2008 edition);
---Modified the equipment (see Chapter 5, Chapter 5 of the.2008 edition);
---Added the pretreatment of the filter (see 6.1 and 6.2);
--- Increased the capture of hydrogen cyanide by the rotary smoking machine (see 6.4);
---Modified sample pre-processing and analysis (see 7.1, Chapter 7 of the.2008 edition);
---Revised the results and presentation (see Chapter 8);
---Modified the recovery rate and detection limit of the method (see Chapter 9, Chapter 9 of the.2008 edition);
--- Increased the precision of the method (see 9.3).
Please note that certain contents of this document may involve patents. The issuing agency of this document is not responsible for identifying these patents.
This standard was proposed by the State Tobacco Monopoly Administration.
This standard is under the jurisdiction of the National Tobacco Standardization Technical Committee Cigarette Sub-committee (SAC/TC144/SC1).
Drafting organizations of this standard. Shanghai Tobacco Group Co., Ltd., China Tobacco Hunan Industry Co., Ltd., National Tobacco Quality Supervision and Inspection
Inspection Center, China National Tobacco Corporation Beijing Branch, Zhejiang China Tobacco Industry Co., Ltd., Guizhou China Tobacco Industry Co., Ltd., Anhui China
Tobacco Industry Co., Ltd., Gansu Tobacco Industry Co., Ltd., Yunnan Tobacco Quality Supervision and Testing Station.
The main drafters of this standard. Liu Xingyu, Zhou Jun, Du Wen, Cao Jihong, Ma Li, Ma Yanjun, Bai Ruoshi, Yan Lihong, Zhang Wei, Fang Yi, Zhou Guojun,
Liu Jian, Wang Ran, Peng Sa, Peng Lijuan, Liu Deshui, Lu Nan, Liu Nan, Jiang Xingyi, Shang Mengqi, Xia Jun, Ji Houwei, Zhang Chao, Zang Zhipeng, Li Xuemei.
The previous versions of the standard replaced by this standard are as follows.
---YC/T 253-2008.
Determination of hydrogen cyanide in mainstream cigarette smoke
Continuous flow method
1 Scope
This standard specifies the continuous flow determination method of hydrogen cyanide release in mainstream cigarette smoke.
This standard applies to the determination of hydrogen cyanide in mainstream cigarette smoke.
2 Normative references
The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this article
Pieces. For undated references, the latest version (including all amendments) applies to this document.
GB/T 5606.1 Cigarette Part 1.Sampling
GB/T 6682 Analytical laboratory water specifications and test methods
GB/T 19609 Smoking machine for routine analysis of cigarettes for determination of total particulate matter and tar
3 Principle
Filters pretreated with sodium hydroxide-ethanol/water solution are used to capture hydrogen cyanide in mainstream cigarette smoke. The captured filter, after
Sodium hydroxide solution is leached to obtain a sample solution. Under slightly acidic conditions, the cyanide ion in the sample solution reacts with chloramine T to generate cyanogen chloride.
Cyanogen chloride reacts with isonicotinic acid to form pentenedial compounds through hydrolysis, and then reacts with 1,3-dimethylbarbituric acid to form blue compounds.
The absorbance was detected at 600nm.
4 Reagents and materials
The experimental water meets the requirements of Grade 1 water in GB/T 6682.
4.1 Sodium hydroxide, purity ≥99.0%.
4.2 Standard material for cyanide component analysis in water [GB W(E)080115].
4.3 Chloramine T (CAS number. 127-65-1), purity ≥95.0%.
4.4 Potassium hydrogen phthalate (CAS number. 877-24-7), purity ≥99.0%.
4.5 Isonicotinic acid (CAS number. 55-22-1), purity ≥99.0%.
4.6 1,3-Dimethylbarbituric acid (CAS number. 769-42-6), purity ≥98.0%.
4.7 Concentrated hydrochloric acid, 36%~38% (mass fraction).
4.8 Ethanol, purity ≥99.0%.
4.9 Polyoxyethylene lauryl ether (CAS number. 9002-92-0), purity ≥90%.
4.10 Polyoxyethylene lauryl ether solution
Add 25.0 g of polyoxyethylene lauryl ether (4.9) to 100 mL of water, heat and stir until completely dissolved.
4.11 1.0mol/L hydrochloric acid solution
Add 84.0mL concentrated hydrochloric acid (4.7) slowly to 500mL water, transfer to a 1000mL volumetric flask, dilute to the mark with water, and mix well.
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