Some standard content:
National Metrology Verification Regulation of the People's Republic of China JJG 595—2002
Colorincters and Color Difference Meters2002-09-13 Issued
Implementation on 2003-03-13
Promulgated by the General Administration of Quality Supervision, Inspection and Quarantine JGS952M2
Verification Regulation of
Colorimeters and Color Differcnce MctersJJG 595—2002
Replaces JJG 595—1989
This regulation was approved by the General Administration of Quality Supervision, Inspection and Quarantine on September 13, 2002, and came into effect on March 13, 2003.
Return date, unit: National Optical Metrology Technical Committee Main drafting unit: China Institute of Metrology Participating drafting unit: Beijing Kangguang Instrument Co., Ltd. National Institute of Testing Technology
This regulation is entrusted to the National Optical Metrology Technical Committee to be responsible for the interpretation of this regulation Main drafters:
Participating drafters:
Li Xiaobin
Yu Dezang
736595—2002
[China Institute of Metrology)
(.Beijing Kangguang Instrument Co., Ltd.) bzxz.net
(China Institute of Metrology)
(China Institute of Testing Technology)
[National Testing Technology Research Institute
(China Testing Technology Research Institute)
Scope·
2 References
3 Overview
3.1 Principle
3.2 Calculation formula
4 Pressure gauge performance requirements
4.1 Stability·
4.2 Volatility
4.7 Current performance·
4.4 Indication error·
4.5 Standard plate
5 Technical requirements for use
5.1 Appearance·
5.2 Lighting and observation conditions
6 Gauge-based instrument control·
6.1 Verification conditions
6.2 Verification items
6.3 Verification methods
6.4 Processing of verification results
6.5 Verification cycle
JJG 595—2002
Appendix Provisions on lighting and observation conditions for colorimeter and colorimeter Appendix F Relationship between response value of colorimeter and tristimulus value Appendix C Inner page of verification certificate
Appendix D Table of weighting coefficients of standard illuminants and spectral values
JJG 595-2002
Verification procedure for colorimeter
This procedure is applicable to the single verification, subsequent verification and in-use inspection of photoelectric standard type colorimeter. The requirements for the determination of the type and prototype of photoelectric integral color measurement and the measurement of emission energy in the prototype test can be referred to in this specification: 2 References
GB/T5698—2001
GE/T3978—1994
Color and terminology
Standard lighting conditions
When using this specification, the currently valid versions of the above referenced documents should be used. 3 Overview
3.1 Principle
Color difference measurement is used to measure the negative and positive differences on the surface of non-fluorescent objects The color measurement and color difference (including colorimeter, etc.) consists of three major components: lighting system, detection system and detection system. The output result (or necessary mathematical processing) is the three stimulus values x, y, (or x: Yu, Z,). The color coordinates or color difference
are calculated. According to the color measurement principle deduced by the International Illumination Commission (CE), the total spectral sensitivity of the instrument (the comprehensive response of the light source, optical system and detector) should be derived from the relationship of formula (1) or formula (2): For °:
Ks(a)r.(a() $.(a)(a)
K,S(a)t.(a)r(2)= S. (a) r (a) | | tt | | (a)r(a)-s.ta)zm.ta )
wherein:
relative light gain power distribution of the instrument light source; (1)
phase spectrum power distribution of the standard illuminant and the difficult illuminant respectively:
K, K, K are constants independent of wavelength;
(>), (>), () are the relative spectral transmittance of the correction illuminator in the instrument that fits the color vision characteristics of the human eye
x (A). a), z ()——CE 1931 standard observer spectrum three-dimensional value; (yuan), (), 2m () - CE1964 standard observer spectrum two-dimensional value: 1
JJGS9S-2402
This instrument adds the relative light response of the instrument before the correction, through the filter formula (), (2 the color measurement bar is called the point Se close instrument combination bar as the implementation degree, the color measurement error of the instrument is determined by the microscope. In order to reduce the color measurement error caused by the inaccurate color measurement bar, a special working color plate should be selected for the instrument to correct the instrument. , for instruments that meet the above adjustment conditions, the equipment can be equipped with a beacon board: for devices that deviate from the factory conditions more strictly, the equipment should be able to cover the color measurement range of the country's academic busy color version, 3.2 The relationship between the three stimulus values and the chromaticity coordinates is stipulated as follows: for /2\:
#-+Y+2
y=X+Y+2
X+++2=)-($+
For the lower Da/10r:
Xu\Xu+Yo+z
=x+ y +2.
-xu+Y.+2.
=1:(x+ym)
3.2.2 The color difference is calculated according to the color difference formula in the CIELAB color space. The formula is: 2 -[(At')\-(Aa\\+(A*)\
Formula:
The difference in the development index L between the reference sample and the measured sample: The difference in the number of positions between the reference sample and the measured sample, the calculation formula is as follows:
= 116
-so()-
-2o(（2
Where: , : 2--the three-dimensional value of the reference product or the sample under test; when 1 is 1, it is used as the corresponding reference product, and 2 is used as the corresponding sample under test: X, Y, z. The three-dimensional value of the standard illuminant is shown in Table 1.2
1a/100
JJC5952002
Three-dimensional value of standard lighting provided
Report GH3478-144 Standard lighting and
Observation system
3.2.3 This visual range requires Y, 2, to represent the small chromaticity signal: use 2E, to represent the unit bit gain. For special requirements, other representations can be added
4 Performance requirements of the instrument
4.1 Stability classification requirements (see table?)
4.2 Complexity (see table? for classification requirements? )4.3 Reproducibility (Grading requirements are shown in Table 3
Indication error (Grading requirements are shown in Table 2!
Table 2 Colorimeter Grading Standard
Secret
Value difference
Matching work standard plate
si-,sty)
The matching negative plate of the instrument must include a color plate, and the color coverage of the color plate should be consistent with the degree of coverage of the instrument and the object to be measured. Its measurement value is normal, and within the specified period, the annual rate of change of color A: should be less than 0.005.
5 General technical requirements
5.1 The optical, mechanical and other parts of the receiver should be able to work normally without any defects that affect the basic performance and function of the instrument
JJC 595—2002
5.1.2 The dedicated white and color plates used with the instrument should be half-finished, clean, dry, uniform in color, opaque, and free of defects such as cracks, wrinkles and bubbles.
5.1.3 The instrument should be marked as follows: name, model, number, manufacturer name, logo and date of manufacture.2 Lighting and measurement conditions
shall comply with the provisions of CB/T3978-1994 standard lighting and illumination observation conditions, and shall comply with any of the four conditions of 45/, 0f45, 0/d, 0. 6 Control of measuring instruments
includes preliminary verification, subsequent verification and in-use inspection. 6.1 Verification conditions
6.1.1 The color of the test equipment
shall be one piece of white, red, green, blue and yellow standard colors respectively. Its chromaticity value shall be determined by the national legal metrology verification organization or the national authorized metrology technical organization. 6.1.2 Environmental conditions
The environmental temperature for calibration is (2315℃, relative humidity is not more than 80℃. 6.2 Calibration items
6.2.1 The calibration items of any grade of colorimeter in periodic calibration include: external specification, required repeatability, reproducibility and indication error.
6.2.2 For the first calibration (including post-calibration), in addition to the mandatory items in 6.2.1, the calibration of instrument stability, lighting and viewing conditions should be added, as shown in Table 3. Table 3 Calibration items for colorimeter
Qualification
Only stability
Reproducibility
Indication error
Lighting and viewing conditions
Final calibration
Here: "+" indicates the items that are qualified,||tt ||6.3 Control Method
G.3.1 Appearance inspection
According to the requirements of 5.1, use the visual method to judge:
6.3.2 Instrument stability
First determination
Items that do not need to be checked are not shown.
Subsequent verification
After the instrument is preheated, at least 8 measurements are made on the three values within 15min, and they meet the requirements of Table 2. The calculation method of stability A is as follows
JICIS95202
ef=lr,-l.
The average value of the measured values:
Where:
F—the first test.
6.3.3 Repeat this
(-112, 8)
After the instrument is preheated, the instrument is calibrated and the special whiteboard is continuously measured for 8 times. During the measurement, the whiteboard remains unchanged. The measurement results should meet the requirements of Table 2. The calculation method of repeatability is as follows:>(area-quantity)
yn-color
Where: "(stimulus value, chromaticity coordinates, color difference, etc.) measurement unit: u——measured average value:
6.3.4 Reproducibility
Measurement times.
Reproducibility is an indicator of the comprehensive reproducibility of the instrument and the whiteboard. In the next step, after recalibrating the instrument, connect the special whiteboard 8 times. During the measurement, the whiteboard center should be rotated 45 degrees each time. The reproducibility of the measurement results meets the requirements of Table 2: The calculation method of reproducibility is as follows: Al(u) =1u: -ul.s(2 -1,2, ,8)5—(stimulus value, negative rate standard, color difference, etc.) the first measurement; where:
—the average value of all measurements.
6.3.5 Indication error
After the instrument is preheated, the F, F, and F values of the five standard plates of white, red, blue, green, and yellow are measured. Each color plate is measured three times, and the average value and the value of each negative plate are defined as the indication error. The results should be obtained from Table 2. The calculation method of the indication error is as follows: A-Y-Yol
Ar = [x - ul
Ay=lr-yoil
, and, ;——standard chromaticity value of the color plate;, ·The average value of each white obtained by the instrument measuring the standard color plate. 6.3,6 Lighting and lighting conditions
Use experience and visual methods to make judgments [see A, and refer to the instrument manual. 6.4 Handling of verification results
6.4.1 Repeatability, reproducibility and indication error are the main items, and the rest are non-main items. If one or more non-main items are out of tolerance or unqualified, the number shall be reduced or the instrument shall be determined as unqualified. 6.4.2 According to the requirements of this regulation, the colorimeter that has been qualified shall be provided with a verification certificate and graded; the colorimeter that has failed the verification shall be issued with a verification result notice and the unqualified reasons shall be noted. 6.5 Verification cycle
The verification cycle is generally no more than one year, but when the instrument's dedicated workstation has frequent or suspicious quality, it shall be sent according to the previous 5
JJG 595—2002
Each time the verification is sent, the certificate to be verified shall be brought along. Otherwise, it shall be handled as the first verification. The content of the verification certificate is shown in Appendix C.
Appendix A
JJG 595—2002
Regulation on the lighting and observation conditions of colorimeter and colorimeter The lighting and observation conditions of the instrument are expressed as "lighting observation". There are four types: 4.145/vertical (expressed as 45/0)
The sample is illuminated by a beam of light, the axis of the illumination light is at an angle of (45 ± 2) to the normal of the sample surface. The angle between the observation beam and the normal of the sample should not exceed 10°, and the angle between the axis of the illumination light and the reference light should not exceed 10°. The same restrictions should also be observed in the observation beam: A.2Vertical/45 (expressed as 0/45)
The sample is illuminated by a beam of light, the effective axis of the beam is at an angle of (45 ± 2) to the normal of the sample surface. Observe the sample at an angle of (45±2) to the normal: the angle between the axis of the illumination beam and any beam should not exceed 8°. The same restrictions should be observed for the observation beam. A.3 Diffuse/Vertical (expressed as d/0)
The sample is diffusely illuminated by an integrating sphere. The angle between the normal to the sample and the axis of the observation beam should not exceed 10; when the total area of the integrating or apertured part does not exceed % of the sphere, its diameter can be arbitrary: the angle between the observation axis and any observation beam should not exceed 5° A.4 Vertical/Diffuse (expressed as d/0)
The sample is diffusely illuminated by an integrating sphere. The angle between the normal to the sample and the axis of the observation beam should not exceed 10; when the total area of the integrating or apertured part does not exceed % of the sphere, its diameter can be arbitrary: the angle between the observation axis and any observation beam should not exceed 5° A.4 Vertical/Diffuse (expressed as d/0) (D)
The sample is illuminated by a beam of light, the angle between the axis of the beam and the normal to the sample does not exceed 10°, the angle between the axis of the beam and any ray should not exceed 5°, the diameter of the integrating sphere can be arbitrary when the total area of the openings of the sphere does not exceed the area of the entire sphere. A.5 Effect of Mirror Reflection
For instruments using the conditions of Sections 3 and A.4, the effect of mirror reflection is handled by the light absorption device, and the size and shape of the light device should be stated. A.5.1 When it is necessary to measure the natural reflection component together, the sample should be measured under strict vertical illumination under the "0rd" condition; on the contrary, under the "" condition, the sample should not be measured under the "" observation condition. Both should be measured without making the sample absorb horizontally. In this case, 0 can be used instead of 0/, or 0 can be used instead of to represent.
In addition, 5.2 When the measurement of the color mirror reflection component is not required, the gloss absorption should be expressed as 0 or not: 7
Appendix B
JI Center G 595—2002
Relationship between the response value of colorimeter and tristimulus value Most colorimeter has three detectors to sense the response values of three color channels respectively. Some colorimeter has four detectors to sense the response values of four color channels. The relationship between the instrument display value and the tristimulus value varies with the structure of the instrument. It is described as follows: For instruments with three depth sensors, the relationship is: R1
For 2°:
Z = K, BJ
For D10°:
Xo - K..R*
Zh= K.. .
4K.KK, K..
Colorimetric calibration coefficients for instruments:
R, K, B——The response values of each detector of the instrument. For instruments with three detectors matched according to the formula (),),),),, the relationship is: B.2
For C/25:
XK,R, +KB
For 0;
X-. +K, H
Yha = c
4.KK.k.KK.
Colorimetric calibration coefficients for instruments:
The response values of each detector of the instrument.
The instrument has three detectors matched according to the formula (),),),),,, the relationship is: B.2
For C/25:
XK,R, +KB
For 0;
X-. +K, H
Yha = c
4.KK.k.KK.
Colorimetric calibration coefficients for instruments:
The response values of each detector of the instrument.
The instrument has three detectors matched according to the formula (),),),,,, the relationship is: B.2
For C/25:
XK,R, +KB
For 0;
X-. +K, H
Yha = c
4.KK.k.KK.
Colorimetric calibration coefficients for instruments:
The response values of each detector of the instrument. (There are two different ways to represent the four detection bands. The first method is
for /2°:
X =R,(R +R,
at 1,110°:1 The periodic verification of any grade of colorimeter shall include: external specification, required repeatability, reproducibility and indication error.
6.2.2 In addition to the mandatory inspection items in 6.2.1, the first (including post-processing) verification shall also include the verification of instrument stability, lighting and viewing conditions, as shown in Table 3. Table 3 Color measurement and control items
Qualification E
Quality only
Reproducibility
Indication error
Lighting and test conditions
Type certification
Here: "+" indicates qualified items,
6.3 Control methods
G.3.1 Appearance inspection
According to the requirements of 5.1, judge by visual inspection method:
6.3.2 Device stability only
Qualification
Not shown Items to be checked.
Subsequent verification
After the instrument is preheated, at least 8 measurements shall be made on the three values within 15min, and they shall meet the requirements of Table 2. The calculation method of stability A is as follows
JICIS95202
ef=lr,-l.
The average value of the measured value:
Where:
F—the first measurement.
6.3.3 Repeat this
(-112, 8) After the instrument is preheated, the instrument is calibrated and the special whiteboard is continuously measured for 8 times. During the measurement, the whiteboard remains unchanged. The measurement results should meet the requirements of Table 2. Repeatability, the calculation method is as follows: > (area - quantity)
yn-
Where: "(stimulus value, chromaticity coordinates, color difference, etc.) measurement unit: u-measured average value:
6.3.4 Reproducibility
Measurement times.
Reproducibility is an indicator of the comprehensive reproducibility of the instrument and the whiteboard. In the next step, after recalibrating the instrument, connect the special whiteboard 8 times. During the measurement, the whiteboard center should be rotated 45 degrees each time. The reproducibility of the measurement results meets the requirements of Table 2: Reproducibility! The calculation method is as follows: Al(u) =1u: -ul.s(2 -1,2, ,8)5-(stimulus value, negative rate standard, color difference, etc.) the first measurement; where:
-the average value of all measurements.
6.3.5 Indication error
After the instrument is preheated, the F, color of the five standard plates of white, red, blue, green and yellow are measured. Each color plate is measured 3 times, and the average value and the high compensation value of the negative plate are defined as the indication error. The results should be shown in Table 2. The calculation method of indication error is as follows: A-Y-Yol
Ar =[x - ul
Ay=lr-yoil
, and,;——standard chromaticity value of the color plate;,·the average value of each white color plate measured by the instrument. 6.3.6 Lighting and ambient temperature conditions
Use experience and visual methods to judge [see record A, and refer to the instrument manual. 6.4 Handling of verification results
6.4.1 Repeatability, reproducibility and indication error are the main items, and the rest are non-main items. If one or more non-main items are out of tolerance or unqualified, they shall be downgraded or determined as unqualified instruments. 6.4.2 According to the requirements of this regulation, the colorimeter that has been qualified shall be issued with a verification certificate and graded; the colorimeter that has failed the verification shall be issued with a verification result notice, and the unqualified reasons shall be noted. 6.5 Verification cycle
The verification cycle is usually no more than one year, but when the instrument's dedicated workstation is frequently estimated or the quantity is suspicious, it should be sent according to the previous 5
JJG 595—2002
Each inspection should be accompanied by the certificate to be inspected. If it is not inspected, it will be treated as the first inspection. The content of the verification certificate is shown in Appendix C.
Appendix A
JJG 595—2002
Regarding the provisions on the lighting and observation conditions for colorimeter and colorimeter, the lighting and observation conditions of the instrument are expressed as "lighting observation". There are four types: 4.145/vertical (expressed as 45/0)
The sample is illuminated by a beam of light, and the axis of the illuminating light makes an angle of (45 ± 2) with the normal to the sample surface. The angle between the observation beam and the normal to the sample should not exceed 10°, and the angle between the axis of the illuminating light and the reference light should not exceed 10°. The same restrictions should also be observed in the observation beam: A.2Vertical/45 (expressed as 0/45?
The sample is illuminated by a beam of light, and the angle between the effective axis of the beam and the normal to the sample should not exceed 10: Observe the sample at an angle of (45±2) to the normal: the angle between the axis of the illumination beam and any beam should not exceed 8°. The same restrictions should be observed for the observation beam. A.3 Diffuse/Vertical (expressed as d/0)
The sample is diffusely illuminated by an integrating sphere. The angle between the normal to the sample and the axis of the observation beam should not exceed 10; when the total area of the integrating or apertured part does not exceed % of the sphere, its diameter can be arbitrary: the angle between the observation axis and any observation beam should not exceed 5° A.4 Vertical/Diffuse (expressed as d/0)
The sample is diffusely illuminated by an integrating sphere. The angle between the normal to the sample and the axis of the observation beam should not exceed 10; when the total area of the integrating or apertured part does not exceed % of the sphere, its diameter can be arbitrary: the angle between the observation axis and any observation beam should not exceed 5° A.4 Vertical/Diffuse (expressed as d/0) (D)
The sample is illuminated by a beam of light, the angle between the axis of the beam and the normal to the sample does not exceed 10°, the angle between the axis of the beam and any ray should not exceed 5°, the diameter of the integrating sphere can be arbitrary when the total area of the openings of the sphere does not exceed the area of the entire sphere. A.5 Effect of Mirror Reflection
For instruments using the conditions of Sections 3 and A.4, the effect of mirror reflection is handled by the light absorption device, and the size and shape of the light device should be stated. A.5.1 When it is necessary to measure the natural reflection component together, the sample should be measured under strict vertical illumination under the "0rd" condition; on the contrary, under the "" condition, the sample should not be measured under the "" observation condition. Both should be measured without making the sample absorb horizontally. In this case, 0 can be used instead of 0/, or 0 can be used instead of to represent.
In addition, 5.2 When the measurement of the color mirror reflection component is not required, the gloss absorption should be expressed as 0 or not: 7
Appendix B
JI Center G 595—2002
Relationship between the response value of colorimeter and tristimulus value Most colorimeter has three detectors to sense the response values of three color channels respectively. Some colorimeter has four detectors to sense the response values of four color channels. The relationship between the instrument display value and the tristimulus value varies with the structure of the instrument. It is described as follows: For instruments with three depth sensors, the relationship is: R1
For 2°:
Z = K, BJ
For D10°:
Xo - K..R*
Zh= K.. .
4K.KK, K..
Colorimetric calibration coefficients for instruments:
R, K, B——The response values of each detector of the instrument. For instruments with three detectors matched according to the formula (),),),),, the relationship is: B.2
For C/25:
XK,R, +KB
For 0;
X-. +K, H
Yha = c
4.KK.k.KK.
Colorimetric calibration coefficients for instruments:
The response values of each detector of the instrument.
The instrument has three detectors matched according to the formula (),),),),,, the relationship is: B.2
For C/25:
XK,R, +KB
For 0;
X-. +K, H
Yha = c
4.KK.k.KK.
Colorimetric calibration coefficients for instruments:
The response values of each detector of the instrument.
The instrument has three detectors matched according to the formula (),),),,,, the relationship is: B.2
For C/25:
XK,R, +KB
For 0;
X-. +K, H
Yha = c
4.KK.k.KK.
Colorimetric calibration coefficients for instruments:
The response values of each detector of the instrument. (There are two different ways to represent the four detection bands. The first method is
for /2°:
X =R,(R +R,
at 1,110°:1 The periodic verification of any grade of colorimeter shall include: external specification, required repeatability, reproducibility and indication error.
6.2.2 In addition to the mandatory inspection items in 6.2.1, the first (including post-processing) verification shall also include the verification of instrument stability, lighting and viewing conditions, as shown in Table 3. Table 3 Color measurement and control items
Qualification E
Quality only
Reproducibility
Indication error
Lighting and test conditions
Type certification
Here: "+" indicates qualified items,
6.3 Control methods
G.3.1 Appearance inspection
According to the requirements of 5.1, judge by visual inspection method:
6.3.2 Device stability only
Qualification
Not shown Items to be checked.
Subsequent verification
After the instrument is preheated, at least 8 measurements shall be made on the three values within 15min, and they shall meet the requirements of Table 2. The calculation method of stability A is as follows
JICIS95202
ef=lr,-l.
The average value of the measured value:
Where:
F—the first measurement.
6.3.3 Repeat this
(-112, 8) After the instrument is preheated, the instrument is calibrated and the special whiteboard is continuously measured for 8 times. During the measurement, the whiteboard remains unchanged. The measurement results should meet the requirements of Table 2. Repeatability, the calculation method is as follows: > (area - quantity)
yn-
Where: "(stimulus value, chromaticity coordinates, color difference, etc.) measurement unit: u-measured average value:
6.3.4 Reproducibility
Measurement times.
Reproducibility is an indicator of the comprehensive reproducibility of the instrument and the whiteboard. In the next step, after recalibrating the instrument, connect the special whiteboard 8 times. During the measurement, the whiteboard center should be rotated 45 degrees each time. The reproducibility of the measurement results meets the requirements of Table 2: Reproducibility! The calculation method is as follows: Al(u) =1u: -ul.s(2 -1,2, ,8)5-(stimulus value, negative rate standard, color difference, etc.) the first measurement; where:
-the average value of all measurements.
6.3.5 Indication error
After the instrument is preheated, the F, color of the five standard plates of white, red, blue, green and yellow are measured. Each color plate is measured 3 times, and the average value and the high compensation value of the negative plate are defined as the indication error. The results should be shown in Table 2. The calculation method of indication error is as follows: A-Y-Yol
Ar =[x - ul
Ay=lr-yoil
, and,;——standard chromaticity value of the color plate;,·the average value of each white color plate measured by the instrument. 6.3.6 Lighting and ambient temperature conditions
Use experience and visual methods to judge [see record A, and refer to the instrument manual. 6.4 Handling of verification results
6.4.1 Repeatability, reproducibility and indication error are the main items, and the rest are non-main items. If one or more non-main items are out of tolerance or unqualified, they shall be downgraded or determined as unqualified instruments. 6.4.2 According to the requirements of this regulation, the colorimeter that has been qualified shall be issued with a verification certificate and graded; the colorimeter that has failed the verification shall be issued with a verification result notice, and the unqualified reasons shall be noted. 6.5 Verification cycle
The verification cycle is usually no more than one year, but when the instrument's dedicated workstation is frequently estimated or the quantity is suspicious, it should be sent according to the previous 5
JJG 595—2002
Each inspection should be accompanied by the certificate to be inspected. If it is not inspected, it will be treated as the first inspection. The content of the verification certificate is shown in Appendix C.
Appendix A
JJG 595—2002
Regarding the provisions on the lighting and observation conditions for colorimeter and colorimeter, the lighting and observation conditions of the instrument are expressed as "lighting observation". There are four types: 4.145/vertical (expressed as 45/0)
The sample is illuminated by a beam of light, and the axis of the illuminating light makes an angle of (45 ± 2) with the normal to the sample surface. The angle between the observation beam and the normal to the sample should not exceed 10°, and the angle between the axis of the illuminating light and the reference light should not exceed 10°. The same restrictions should also be observed in the observation beam: A.2Vertical/45 (expressed as 0/45?
The sample is illuminated by a beam of light, and the angle between the effective axis of the beam and the normal to the sample should not exceed 10: Observe the sample at an angle of (45±2) to the normal: the angle between the axis of the illumination beam and any beam should not exceed 8°. The same restrictions should be observed for the observation beam. A.3 Diffuse/Vertical (expressed as d/0)
The sample is diffusely illuminated by an integrating sphere. The angle between the normal to the sample and the axis of the observation beam should not exceed 10; when the total area of the integrating or apertured part does not exceed % of the sphere, its diameter can be arbitrary: the angle between the observation axis and any observation beam should not exceed 5° A.4 Vertical/Diffuse (expressed as d/0)
The sample is diffusely illuminated by an integrating sphere. The angle between the normal to the sample and the axis of the observation beam should not exceed 10; when the total area of the integrating or apertured part does not exceed % of the sphere, its diameter can be arbitrary: the angle between the observation axis and any observation beam should not exceed 5° A.4 Vertical/Diffuse (expressed as d/0) (D)
The sample is illuminated by a beam of light, the angle between the axis of the beam and the normal to the sample does not exceed 10°, the angle between the axis of the beam and any ray should not exceed 5°, the diameter of the integrating sphere can be arbitrary when the total area of the openings of the sphere does not exceed the area of the entire sphere. A.5 Effect of Mirror Reflection
For instruments using the conditions of Sections 3 and A.4, the effect of mirror reflection is handled by the light absorption device, and the size and shape of the light device should be stated. A.5.1 When it is necessary to measure the natural reflection component together, the sample should be measured under strict vertical illumination under the "0rd" condition; on the contrary, under the "" condition, the sample should not be measured under the "" observation condition. Both should be measured without making the sample absorb horizontally. In this case, 0 can be used instead of 0/, or 0 can be used instead of to represent.
In addition, 5.2 When the measurement of the color mirror reflection component is not required, the gloss absorption should be expressed as 0 or not: 7
Appendix B
JI Center G 595—2002
Relationship between the response value of colorimeter and tristimulus value Most colorimeter has three detectors to sense the response values of three color channels respectively. Some colorimeter has four detectors to sense the response values of four color channels. The relationship between the instrument display value and the tristimulus value varies with the structure of the instrument. It is described as follows: For instruments with three depth sensors, the relationship is: R1
For 2°:
Z = K, BJ
For D10°:
Xo - K..R*
Zh= K.. .
4K.KK, K..
Colorimetric calibration coefficients for instruments:
R, K, B——The response values of each detector of the instrument. For instruments with three detectors matched according to the formula (),),),),, the relationship is: B.2
For C/25:
XK,R, +KB
For 0;
X-. +K, H
Yha = c
4.KK.k.KK.
Colorimetric calibration coefficients for instruments:
The response values of each detector of the instrument.
The instrument has three detectors matched according to the formula (),),),),,, the relationship is: B.2
For C/25:
XK,R, +KB
For 0;
X-. +K, H
Yha = c
4.KK.k.KK.
Colorimetric calibration coefficients for instruments:
The response values of each detector of the instrument.
The instrument has three detectors matched according to the formula (),),),,,, the relationship is: B.2
For C/25:
XK,R, +KB
For 0;
X-. +K, H
Yha = c
4.KK.k.KK.
Colorimetric calibration coefficients for instruments:
The response values of each detector of the instrument. (There are two different ways to represent the four detection bands. The first method is
for /2°:
X =R,(R +R,
at 1,110°:
The average value of the measured value is:
Where:
F—the first measurement.
6.3.3 Repeat this
(-112, 8)
After the instrument is warmed up, calibrate the instrument and continuously measure the special equipment for 8 times. During the measurement, the user board remains inoperative. The measurement results should meet the requirements of Table 2. Repeatability, the calculation method is as follows: > (area - quantity)
yn-metal
Where: "(stimulus value, chromaticity coordinates, color difference, etc.) single measurement: u-measured average value:
6.3.4 Reproducibility
Measurement time.
Reproducibility is an indicator of the comprehensive reproducibility of the instrument and the whiteboard. In the next step, after recalibrating the instrument, connect the special whiteboard 8. During the test, each time the center of the whiteboard is used as the axis to rotate 45 degrees. The reproducibility of the test results meets the requirements of Table 2: Reproducibility! The calculation method is as follows: Al(u) =1u: - ul.s(2 -1,2, ,8)5—(stimulus value, negative rate standard, color difference, etc.) the first measurement; where:
—the average value of all measurements.
6.3.5 Indication error
After the instrument is preheated, the F, F, of the 5 standard plates of white, red, blue, green, and yellow are measured. Each color plate is measured 3 times, and the average value and the high compensation value of the negative plate are defined as the indication error. The results should be shown in Table 2. The calculation method of indication error is as follows: A- Y-Yoll
Ar =[x - ul
Ay=lr- yoil
，，，;——standard chromaticity value of color plate;，，·average value of each white obtained by measuring standard color plate with instrument. 6.3.6 Lighting and illumination conditions
Judgment shall be made by experience and visual method [see A, and also by instrument manual. 6.4 Treatment of verification results
6.4.1 Repeatability, reproducibility and indication error are the main items, and the rest are non-main items. When there is one day or more than three days of inspection, the repeatability, reproducibility and indication error shall be the main items. If non-major items are out of tolerance or unqualified, the number shall be reduced or the instrument shall be determined as unqualified. 6.4.2 According to the requirements of this regulation, the colorimeter that has been determined to be unqualified shall be provided with a calibration certificate and graded; the colorimeter that fails the calibration shall be issued with a calibration result notice and the reasons for the failure shall be noted. 6.5 Calibration cycle
The calibration cycle is generally no more than 1 year, but when the instrument's dedicated workstation has frequent or suspicious results, it shall be sent according to the previous 5
JJG 595—2002
Each time it is sent for inspection, the certificate to be inspected shall be brought along. Otherwise, it shall be treated as the first calibration. The contents of the calibration certificate are shown in Appendix C.
Appendix A
JJG 595—2002
Regulation on the lighting and observation conditions of colorimeter and colorimeter The lighting and observation conditions of the instrument are expressed as "lighting observation". There are four types: 4.145/vertical (expressed as 45/0)
The sample is illuminated by a beam of light, the axis of the illumination light is at an angle of (45±2) to the normal of the sample surface. The angle between the observation beam and the normal of the sample should not exceed 10°, and the angle between the axis of the illumination light and the reference light should not exceed 10°. The same restrictions should be observed in the observation beam: A.2Vertical/45 (expressed as 0/45)
The sample is illuminated by a beam of light, the effective axis of the beam is at an angle of (45±2) to the normal. The angle between the axis of the illumination beam and any light beam should not exceed 8°. The same restrictions should be observed in the observation beam. A.3 Diffuse/Vertical (expressed by d/0)
The sample is diffusely illuminated by an integrating sphere. The angle between the normal to the sample and the axis of the observation beam should not exceed 10°; when the total area of the integrating or apertured part does not exceed % of the reflection sphere, its diameter can be arbitrary: the angle between the observation axis and any observation light ray should not exceed 5°A.4 Vertical/Diffuse (expressed by d)
The sample is illuminated by a beam of light. The angle between the axis of the light beam and the normal to the sample does not exceed 10°. The integrating sphere is used to transform the reflection sphere into an appropriate single-lens: the angle between the axis of the observation beam and any light ray should not exceed 5°; when the total area of the apertured part of the integrating sphere does not exceed % of the reflection sphere, its diameter can be arbitrary. A.5 Effect of specular reflection
For instruments using the conditions of clauses 3 and A.4 above, the effect of specular reflection can be dealt with by setting up a light absorption device, and the size, shape and position of the light absorption device should be stated. A.5.1 When it is necessary to measure both the natural reflection component and the component under “0rd” condition, it is not necessary to measure under strict vertical illumination; on the contrary, under “” condition, the sample should not be measured under “” observation. Both should be measured without making the sample absorb horizontally. In this case, 0 can be used instead of 0/, or 0 can be used instead of to indicate.
In addition, 5.2 When the measurement of the color reflection component is not required, the gloss absorption should be 0 or less. Table 7
Appendix B
JIU 595—2002
Relationship between the response value of the colorimeter and the three stimulus values Most colorimeter has three detectors to sense the response values of the three color channels respectively. Some have four detectors to sense the response values of the four color channels. The relationship between the inter-instrument display value and the three stimulus values varies with the structure of the instrument. It is described as follows: For an instrument with three depth detectors, the relationship is: R1
For 2°:
Z = K,BJ
For D10°:
Xo - K..R*
Zh= K.. .
4K.KK, K..
Colorimetric calibration coefficient:
R, K, B——The response values of each detector of the instrument. For an instrument with three detectors matched according to (),),),), the relationship is: B.2
For C/25:
XK,R, +KB
For 0;
X-. +K, H
Yha = c
4.KK.k.KK.
A colorimetric calibration factor:
A response coefficient of each detector in the instrument.
The instrument has four detection bands. There are two different ways to express it. The first method is
For /2°:
X =R,(R +R,
For 1,110°:
The average value of the measured value is:
Where:
F—the first measurement.
6.3.3 Repeat this
(-112, 8)
After the instrument is warmed up, calibrate the instrument and continuously measure the special equipment for 8 times. During the measurement, the user board remains inoperative. The measurement results should meet the requirements of Table 2. Repeatability, the calculation method is as follows: > (area - quantity)
yn-metal
Where: "(stimulus value, chromaticity coordinates, color difference, etc.) single measurement: u-measured average value:
6.3.4 Reproducibility
Measurement time.
Reproducibility is an indicator of the comprehensive reproducibility of the instrument and the whiteboard. In the next step, after recalibrating the instrument, connect the special whiteboard 8. During the test, each time the center of the whiteboard is used as the axis to rotate 45 degrees. The reproducibility of the test results meets the requirements of Table 2: Reproducibility! The calculation method is as follows: Al(u) =1u: - ul.s(2 -1,2, ,8)5—(stimulus value, negative rate standard, color difference, etc.) the first measurement; where:
—the average value of all measurements.
6.3.5 Indication error
After the instrument is preheated, the F, F, of the 5 standard plates of white, red, blue, green, and yellow are measured. Each color plate is measured 3 times, and the average value and the high compensation value of the negative plate are defined as the indication error. The results should be shown in Table 2. The calculation method of indication error is as follows: A- Y-Yoll
Ar =[x - ul
Ay=lr- yoil
，，，;——standard chromaticity value of color plate;，，·average value of each white obtained by measuring standard color plate with instrument. 6.3.6 Lighting and illumination conditions
Judgment shall be made by experience and visual method [see A, and also by instrument manual. 6.4 Treatment of verification results
6.4.1 Repeatability, reproducibility and indication error are the main items, and the rest are non-main items. When there is one day or more than three days of inspection, the repeatability, reproducibility and indication error shall be the main items. If non-major items are out of tolerance or unqualified, the number shall be reduced or the instrument shall be determined as unqualified. 6.4.2 According to the requirements of this regulation, the colorimeter that has been determined to be unqualified shall be provided with a calibration certificate and graded; the colorimeter that fails the calibration shall be issued with a calibration result notice and the reasons for the failure shall be noted. 6.5 Calibration cycle
The calibration cycle is generally no more than 1 year, but when the instrument's dedicated workstation has frequent or suspicious results, it shall be sent according to the previous 5
JJG 595—2002
Each time it is sent for inspection, the certificate to be inspected shall be brought along. Otherwise, it shall be treated as the first calibration. The contents of the calibration certificate are shown in Appendix C.
Appendix A
JJG 595—2002
Regulation on the lighting and observation conditions of colorimeter and colorimeter The lighting and observation conditions of the instrument are expressed as "lighting observation". There are four types: 4.145/vertical (expressed as 45/0)
The sample is illuminated by a beam of light, the axis of the illumination light is at an angle of (45±2) to the normal of the sample surface. The angle between the observation beam and the normal of the sample should not exceed 10°, and the angle between the axis of the illumination light and the reference light should not exceed 10°. The same restrictions should be observed in the observation beam: A.2Vertical/45 (expressed as 0/45)
The sample is illuminated by a beam of light, the effective axis of the beam is at an angle of (45±2) to the normal. The angle between the axis of the illumination beam and any light beam should not exceed 8°. The same restrictions should be observed in the observation beam. A.3 Diffuse/Vertical (expressed by d/0)
The sample is diffusely illuminated by an integrating sphere. The angle between the normal to the sample and the axis of the observation beam should not exceed 10°; when the total area of the integrating or apertured part does not exceed % of the reflection sphere, its diameter can be arbitrary: the angle between the observation axis and any observation light ray should not exceed 5°A.4 Vertical/Diffuse (expressed by d)
The sample is illuminated by a beam of light. The angle between the axis of the light beam and the normal to the sample does not exceed 10°. The integrating sphere is used to transform the reflection sphere into an appropriate single-lens: the angle between the axis of the observation beam and any light ray should not exceed 5°; when the total area of the apertured part of the integrating sphere does not exceed % of the reflection sphere, its diameter can be arbitrary. A.5 Effect of specular reflection
For instruments using the conditions of clauses 3 and A.4 above, the effect of specular reflection can be dealt with by setting up a light absorption device, and the size, shape and position of the light absorption device should be stated. A.5.1 When it is necessary to measure both the natural reflection component and the component under “0rd” condition, it is not necessary to measure under strict vertical illumination; on the contrary, under “” condition, the sample should not be measured under “” observation. Both should be measured without making the sample absorb horizontally. In this case, 0 can be used instead of 0/, or 0 can be used instead of to indicate.
In addition, 5.2 When the measurement of the color reflection component is not required, the gloss absorption should be 0 or less. Table 7
Appendix B
JIU 595—2002
Relationship between the response value of the colorimeter and the three stimulus values Most colorimeter has three detectors to sense the response values of the three color channels respectively. Some have four detectors to sense the response values of the four color channels. The relationship between the inter-instrument display value and the three stimulus values varies with the structure of the instrument. It is described as follows: For an instrument with three depth detectors, the relationship is: R1
For 2°:
Z = K,BJ
For D10°:
Xo - K..R*
Zh= K.. .
4K.KK, K..
Colorimetric calibration coefficient:
R, K, B——The response values of each detector of the instrument. For an instrument with three detectors matched according to (),),),), the relationship is: B.2
For C/25:
XK,R, +KB
For 0;
X-. +K, H
Yha = c
4.KK.k.KK.
A colorimetric calibration factor:
A response coefficient of each detector in the instrument.
The instrument has four detection bands. There are two different ways to express it. The first method is
For /2°:
X =R,(R +R,
For 1,110°:5 Verification cycle
The verification cycle is usually no more than one year, but when the instrument's dedicated workstation has frequent or suspicious measurements, it should be sent according to the previous 5
JJG 595—2002
Each time it is sent for inspection, the certificate to be inspected should be brought along. If it is not inspected, it will be treated as the first inspection. The content of the verification certificate is shown in Appendix C.
Appendix A
JJG 595—2002
Provisions on lighting and observation conditions for colorimeter and colorimeter The lighting and observation conditions of the instrument are expressed as "lighting observation". There are four types: 4.145/vertical (expressed as 45/0)
The sample is illuminated by a beam of light, and the axis of the illuminating light makes an angle of (45 ± 2) with the normal to the sample surface. The angle between the observation beam and the normal to the sample should not exceed 10°, and the angle between the axis of the illuminating light and the reference light should not exceed 10°. The same restrictions should also be observed in the observation beam: A.2Vertical/45 (expressed as 0/45?
The sample is illuminated by a beam of light, and the angle between the effective axis of the beam and the normal to the sample should not exceed 10: Observe the sample at an angle of (45±2) to the normal: the angle between the axis of the illumination beam and any beam should not exceed 8°. The same restrictions should be observed for the observation beam. A.3 Diffuse/Vertical (expressed as d/0)
The sample is diffusely illuminated by an integrating sphere. The angle between the normal to the sample and the axis of the observation beam should not exceed 10; when the total area of the integrating or apertured part does not exceed % of the sphere, its diameter can be arbitrary: the angle between the observation axis and any observation beam should not exceed 5° A.4 Vertical/Diffuse (expressed as d/0)
The sample is diffusely illuminated by an integrating sphere. The angle between the normal to the sample and the axis of the observation beam should not exceed 10; when the total area of the integrating or apertured part does not exceed % of the sphere, its diameter can be arbitrary: the angle between the observation axis and any observation beam should not exceed 5° A.4 Vertical/Diffuse (expressed as d/0) (D)
The sample is illuminated by a beam of light, the angle between the axis of the beam and the normal to the sample does not exceed 10°, the angle between the axis of the beam and any ray should not exceed 5°, the diameter of the integrating sphere can be arbitrary when the total area of the openings of the sphere does not exceed the area of the entire sphere. A.5 Effect of Mirror Reflection
For instruments using the conditions of Sections 3 and A.4, the effect of mirror reflection is handled by the light absorption device, and the size and shape of the light device should be stated. A.5.1 When it is necessary to measure the natural reflection component together, the sample should be measured under strict vertical illumination under the "0rd" condition; on the contrary, under the "" condition, the sample should not be measured under the "" observation condition. Both should be measured without making the sample absorb horizontally. In this case, 0 can be used instead of 0/, or 0 can be used instead of to represent.
In addition, 5.2 When the measurement of the color mirror reflection component is not required, the gloss absorption should be expressed as 0 or not: 7
Appendix B
JI Center G 595—2002
Relationship between the response value of colorimeter and tristimulus value Most colorimeter has three detectors to sense the response values of three color channels respectively. Some colorimeter has four detectors to sense the response values of four color channels. The relationship between the instrument display value and the tristimulus value varies with the structure of the instrument. It is described as follows: For instruments with three depth sensors, the relationship is: R1
For 2°:
Z = K, BJ
For D10°:
Xo - K..R*
Zh= K.. .
4K.KK, K..
Colorimetric calibration coefficients for instruments:
R, K, B——The response values of each detector of the instrument. For instruments with three detectors matched according to the formula (),),),),, the relationship is: B.2
For C/25:
XK,R, +KB
For 0;
X-. +K, H
Yha = c
4.KK.k.KK.
Colorimetric calibration coefficients for instruments:
The response values of each detector of the instrument.
The instrument has three detectors matched according to the formula (),),),),,, the relationship is: B.2
For C/25:
XK,R, +KB
For 0;
X-. +K, H
Yha = c
4.KK.k.KK.
Colorimetric calibration coefficients for instruments:
The response values of each detector of the instrument.
The instrument has three detectors matched according to the formula (),),),,,, the relationship is: B.2
For C/25:
XK,R, +KB
For 0;
X-. +K, H
Yha = c
4.KK.k.KK.
Colorimetric calibration coefficients for instruments:
The response values of each detector of the instrument. (There are two different ways to represent the four detection bands. The first method is
for /2°:
X =R,(R +R,
at 1,110°:5 Verification cycle
The verification cycle is usually no more than one year, but when the instrument's dedicated workstation has frequent or suspicious measurements, it should be sent according to the previous 5
JJG 595—2002
Each time it is sent for inspection, the certificate to be inspected should be brought along. If it is not inspected, it will be treated as the first inspection. The content of the verification certificate is shown in Appendix C.
Appendix A
JJG 595—2002
Provisions on lighting and observation conditions for colorimeter and colorimeter The lighting and observation conditions of the instrument are expressed as "lighting observation". There are four types: 4.145/vertical (expressed as 45/0)
The sample is illuminated by a beam of light, and the axis of the illuminating light makes an angle of (45 ± 2) with the normal to the sample surface. The angle between the observation beam and the normal to the sample should not exceed 10°, and the angle between the axis of the illuminating light and the reference light should not exceed 10°. The same restrictions should also be observed in the observation beam: A.2Vertical/45 (expressed as 0/45?
The sample is illuminated by a beam of light, and the angle between the effective axis of the beam and the normal to the sample should not exceed 10: Observe the sample at an angle of (45±2) to the normal: the angle between the axis of the illumination beam and any beam should not exceed 8°. The same restrictions should be observed for the observation beam. A.3 Diffuse/Vertical (expressed as d/0)
The sample is diffusely illuminated by an integrating sphere. The angle between the normal to the sample and the axis of the observation beam should not exceed 10; when the total area of the integrating or apertured part does not exceed % of the sphere, its diameter can be arbitrary: the angle between the observation axis and any observation beam should not exceed 5° A.4 Vertical/Diffuse (expressed as d/0)
The sample is diffusely illuminated by an integrating sphere. The angle between the normal to the sample and the axis of the observation beam should not exceed 10; when the total area of the integrating or apertured part does not exceed % of the sphere, its diameter can be arbitrary: the angle between the observation axis and any observation beam should not exceed 5° A.4 Vertical/Diffuse (expressed as d/0) (D)
The sample is illuminated by a beam of light, the angle between the axis of the beam and the normal to the sample does not exceed 10°, the angle between the axis of the beam and any ray should not exceed 5°, the diameter of the integrating sphere can be arbitrary when the total area of the openings of the sphere does not exceed the area of the entire sphere. A.5 Effect of Mirror Reflection
For instruments using the conditions of Sections 3 and A.4, the effect of mirror reflection is handled by the light absorption device, and the size and shape of the light device should be stated. A.5.1 When it is necessary to measure the natural reflection component together, the sample should be measured under strict vertical illumination under the "0rd" condition; on the contrary, under the "" condition, the sample should not be measured under the "" observation condition. Both should be measured without making the sample absorb horizontally. In this case, 0 can be used instead of 0/, or 0 can be used instead of to represent.
In addition, 5.2 When the measurement of the color mirror reflection component is not required, the gloss absorption should be expressed as 0 or not: 7
Appendix B
JI Center G 595—2002
Relationship between the response value of colorimeter and tristimulus value Most colorimeter has three detectors to sense the response values of three color channels respectively. Some colorimeter has four detectors to sense the response values of four color channels. The relationship between the instrument display value and the tristimulus value varies with the structure of the instrument. It is described as follows: For instruments with three depth sensors, the relationship is: R1
For 2°:
Z = K, BJ
For D10°:
Xo - K..R*
Zh= K.. .
4K.KK, K..
Colorimetric calibration coefficients for instruments:
R, K, B——The response values of each detector of the instrument. For instruments with three detectors matched according to the formula (),),),),, the relationship is: B.2
For C/25:
XK,R, +KB
For 0;
X-. +K, H
Yha = c
4.KK.k.KK.
Colorimetric calibration coefficients for instruments:
The response values of each detector of the instrument.
The instrument has three detectors matched according to the formula (),),),),,, the relationship is: B.2
For C/25:
XK,R, +KB
For 0;
X-. +K, H
Yha = c
4.KK.k.KK.
Colorimetric calibration coefficients for instruments:
The response values of each detector of the instrument.
The instrument has three detectors matched according to the formula (),),),,,, the relationship is: B.2
For C/25:
XK,R, +KB
For 0;
X-. +K, H
Yha = c
4.KK.k.KK.
Colorimetric calibration coefficients for instruments:
The response values of each detector of the instrument. (There are two different ways to represent the four detection bands. The first method is
for /2°:
X =R,(R +R,
at 1,110°:
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