JJF 4.4-2010 English PDF
Basic dataStandard 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---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. 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 Contents1 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. Chlorine1 ScopeThe 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 CitationsThis 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 conceptsThe relevant terms and definitions given in JJF 1059, YC/T 31, and YC/T 162 apply to this specification.4 Mathematical models and uncertainty components4.1 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 ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of JJF 4.4-2010_English be delivered?Answer: Upon your order, we will start to translate JJF 4.4-2010_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. 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