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Tobacco and Tobacco Products. Evaluation of Uncertainty in Measurement for Routine Chemical Ingredients Using Continuous Flow Method. Part 2: Total Alkaloids
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JJF 4.4-2010
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Standard similar to JJF 4.4-2010 JJG 4 JJF 4.2 JJF 4.1 Basic data | Standard ID | JJF 4.4-2010 (JJF4.4-2010) | | Description (Translated English) | Tobacco and Tobacco Products. Evaluation of Uncertainty in Measurement for Routine Chemical Ingredients Using Continuous Flow Method. Part 2: Total Alkaloids | | Sector / Industry | Metrology & Measurement Industry Standard | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine | JJF 4.4-2010: Tobacco and Tobacco Products. Evaluation of Uncertainty in Measurement for Routine Chemical Ingredients Using Continuous Flow Method. Part 2: Total Alkaloids
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Tobacco and Tobacco Products.Evaluation of Uncertainty in Measurement for Routine Chemical Ingredients Using Continuous Flow Method.Part 2. Total Alkaloids
Ministry of People's Republic of China Metrology Technical Specifications
JJF (Tobacco) 4.4-2010
Continuous flow of tobacco and tobacco products
Determination of conventional chemical composition measurement uncertainty
Degree assessment guide
Part 4. Chlorine
Part 4. Chloride
Released on.2010-12-27
2011-01-15 implementation
National Tobacco Monopoly Bureau released
Continuous flow of tobacco and tobacco products
Determination of conventional chemical composition measurement uncertainty
Degree assessment guide
Part 4. Chlorine
ContinuousFlowMethod-
Part 4.
Chloride
JJF (Tobacco) 4.4-2010
This specification was approved by the State Tobacco Monopoly Bureau on December 27,.2010, and since January.2011
Implemented on the 15th.
Focal Point. National Tobacco Monopoly Bureau
Main drafting unit. National Tobacco Quality Supervision and Inspection Center
Shanghai Tobacco (Group) Co., Ltd.
Shenzhen Tobacco Industry Co., Ltd.
Shandong China Tobacco Industry Co., Ltd. Technology Center Qingdao Workstation
Jiangsu Zhongyan Industry Co., Ltd. Xuzhou Cigarette Factory
Hongyun Honghe Tobacco (Group) Co., Ltd.
This specification is interpreted by the National Tobacco Standardization Technical Committee.
JJF (Tobacco) 4.4-2010
The main drafters of this specification.
Hu Qingyuan
Tang Gangling
Participate in the drafters.
Feng Qunzhi
Stone red geese
Yang Yanping
Yin Yanqi
Qian Qiang
JJF (Tobacco) 4.4-2010
table of Contents
1 Scope (1)
2 Citations (1)
3 Basic terms and concepts (1)
4 Mathematical models and uncertainty components (1)
5 synthetic standard uncertainty (6)
6 Extended uncertainty (6)
Appendix A Standard Uncertainty Evaluation of Fitting Curve Parameters (7)
JJF (Tobacco) 4.4-2010
Continuous flow of tobacco and tobacco products
Determination of conventional chemical composition measurement uncertainty
Degree assessment guide
Part 4. Chlorine
1 Scope
The uncertainty assessment procedure provided by this specification is used to guide the continuous flow measurement of tobacco and tobacco products.
Evaluation of the measurement uncertainty of chemical composition chlorine.
2 Citations
This specification refers to the following documents.
JJF 1059 Measurement Uncertainty Evaluation and Representation
YC/T 31 Preparation of tobacco and tobacco product samples and moisture determination oven method
YC/T 162 Determination of chlorine in tobacco and tobacco products - Continuous flow method
Use of this specification should be done with the current valid version of the above cited documents.
3 basic terms and concepts
The relevant terms and definitions given in JJF 1059, YC/T 31, and YC/T 162 apply to this specification.
4 Mathematical models and uncertainty components
4.1 Mathematical model of the measurement process
From YC/T 162, the mathematical model of chlorine in tobacco and tobacco products tested is shown in equation (1).
CHL=RCHL±RCHL×
[urel(m)]2 [urel(W)]2 [urel(V)]2 [urel(C)]2 [urel(rep)]2 (1)
In the formula.
CHL---chlorine amount;
RCHL---the measured value of chlorine;
Urel(m)---the relative amount of influence introduced by sample quality measurement;
Urel(W)---the relative amount of influence introduced by sample moisture measurement;
Urel(V)--the relative amount of influence introduced by the volume measurement of the extract;
Urel(C)---the relative amount of influence introduced by sample concentration measurement;
Urel(rep)---Measures the relative amount of influence introduced by repeatability.
4.2 Uncertainty component evaluation
4.2.1 Uncertainty component introduced by sample quality measurement, urel(m)
JJF (Tobacco) 4.4-2010
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