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JJF 1492-2014 English PDF

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JJF 1492-2014: Calibration Specification for Reflection Densitometers
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Standard similar to JJF 1492-2014

GB 17341   JB/T 7403   

Basic data

Standard ID JJF 1492-2014 (JJF1492-2014)
Description (Translated English) Calibration Specification for Reflection Densitometers
Sector / Industry Metrology & Measurement Industry Standard
Classification of Chinese Standard N34
Word Count Estimation 17,140
Date of Issue 11/17/2014
Date of Implementation 2/17/2015
Quoted Standard JIF 1032-2005; GB/T 11501-2008; GB/T 12823.4-2008; GB/T 23649-2009
Regulation (derived from) The State Administration of Quality Supervision, Inspection and Quarantine Notice 2014 No. 125
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine
Summary This Standard applies to reflective light densitometer visual reflection density and color reflection density calibration.

JJF 1492-2014: Calibration Specification for Reflection Densitometers

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Calibration Specification for Reflection Densitometers People's Republic of China National Metrology Technical Specifications Reflective densitometer calibration specification Issued on. 2014-11-17 2015-02-17 implementation The State Administration of Quality Supervision, Inspection and Quarantine released Reflective densitometer calibration specification Focal point. the National Technical Committee on Optical metrology Main drafting unit. Guangdong Institute of Metrology China Institute of Metrology Shanghai Measurement and Testing Technology Research Institute Participated in the drafting unit. Shandong Institute of Metrology China National Institute of Standardization This specification committee commissioned by the National Optical measurement technology is responsible for interpreting The main drafters of this specification. Mo Fan (Guangdong Institute of Metrology) Chen Rui (China Institute of Metrology) Ye Junan (Shanghai Institute of Measurement and Testing) Drafters participate. Jia Rui (Guangdong Institute of Metrology) Zhu Junqing (Guangdong Institute of Metrology) Hole Wei (Shandong Province Institute of Metrology) Caijian Qi (China National Institute of Standardization)

table of Contents

Introduction (Ⅱ) 1 Scope (1) 2. References (1) 3 terminology and units of measurement (1) Reflection factor 3.1 (1) 3.2 reflection density (1) 3.3 visual density (1) 3.4 color density (2) 4 Overview (2) 5 Metrological characteristics (3) 5.1 Indication error (3) 5.2 show drift (3) 5.3 Repeatability (3) 6 calibration conditions (3) Environmental conditions 6.1 (3) 6.2 Calibration Equipment (4) 7 calibration items and calibration methods (4) 7.1 preparation before calibration (4) 7.2 Indication Error (4) 7.3 show drift (4) 7.4 Repeatability (5) 8 calibration results (5) 9 Recalibration interval (5) Appendix A recommended format for original records (6) Appendix B recommended calibration certificate page format (8) Appendix C measurement uncertainty analysis (9) Analytical Appendix D ISO predetermined density of several states (11)

Introduction

JJF 1071-2010 "National Calibration Specifications writing rules", JJF 1001-2011 "common terminology and measurement Definitions ", JJF 1059.1-2012" Evaluation and Expression of Uncertainty in Measurement "constitute a common norm-setting Basic series specifications. This specification with reference to GB/T 11501-2008 "photographic density measurements - Part 3. Spectral conditions" (ISO 5-3. 1995, IDT), GB/T 12823.4-2008 "photographic density measurements - Part 4. Geometric reflection density strip Member "(ISO 5-4.1995, IDT), GB/T 23649-2009" printing technology for printing process control reflection Density meter optics, geometry and metrology requirements "(ISO 14981.2000, IDT) write. GB/T 11501-2008 defined spectral reflection density conditions, GB/T 12823.4-2008 defines anti Shoot density geometry, GB/T 23649-2009 standard specifies the color coordinates color reflecting plate. This specification is in Three standard for calibration developed on the basis of specifications, the main technical changes are as follows. --- Instruments and apparatus described principle schematics (see 4); --- The technical specifications and standards traceable way (see 6.2); --- Specific method reflective densitometer calibration (see 7); --- The format of the instrument calibration and calibration certificate of the original records (see Appendix A and Appendix B); --- Calibration uncertainty assessment paradigm (see Appendix C). The specification for the first time to develop. Reflective densitometer calibration specification

1 Scope

The specification for a reflection type optical densitometer visual reflection density and color reflection density calibration. 2. References JJF 1032-2005 optical radiation measurement terminology and definitions GB/T 11501-2008/ISO 5-3.1995 Photography Density measurements - Part 3. Spectral conditions (ISO 5-3. 1995, IDT) GB/T 12823.4-2008/ISO 5-4.1995 Photography Density measurement - Part 4. reflection density Geometry (ISO 5-4.1995, IDT) GB/T 23649-2009/ISO 14981.2000 Graphic technology Process control printing reflection densitometer Optics, geometry and metrology requirements (ISO 14981.2000, IDT) For dated references, only the dated edition applies to this specification; undated reference documents Member, the latest edition (including any amendments) applies to this specification.

3 terminology and units of measurement

3.1 reflection factor (R) reflectancefactor Incident radiation in the spectral composition, polarization state under specified conditions and geometry, measured at a specified circular reflector Cone defined by the direction of the reflected radiation flux (or luminous flux) with identical irradiation (or illumination) under ideal conditions diffusely Than the projectile reflection of flux in the same direction, see equation (1). R = Φe Φj (1) Where. Φe --- reflected radiation or luminous flux, lm; Φj --- ideal diffuse reflector in the same direction flux, lm. 3.2 reflection density (DR) reflectancefactor (optical) density Reflection factor of 10 to take the reciprocal logarithm, namely DR = lg R = -lg (Φe/Φj) Where. The DR --- reflection density, in units of 1; --- R & lt reflection factor, unit 1. 3.3 visual density visualdensity Spectral responsivity and CIEV (λ) transmission and reflection detectors consistent density measured [JJF 1032-2005, General terms 4.87]. It uses DR (SA.V) to represent [GB/T 11501-2008/ISO 5-3.19958.1].

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