This standard specifies the basic performance and technical requirements for standard smoke cards (hereinafter referred to as smoke cards) for filter paper smoke meters. This smoke meter card is suitable for indexing and calibration of filter paper smoke meter indications. GB 9804-1996 Yandu card standard GB9804-1996 standard download and decompression password: www.bzxz.net

GB9804-1996
Preface
Previous
This standard is a revised version of GB9804-88. This standard modifies the definition, symbol and unit of filter paper smoke in the previous edition. The revised quantity conversion relationship between the two is shown in Appendix A (Appendix of the reminder). Filter Paper Smoke Measurement Method" and HJ/T4:93 "Diesel Vehicle Filter Paper. This standard is consistent with the provisions of CB/T3846-93 "Technical Conditions for Measuring Smoke Measurement of Diesel Vehicle Free Acceleration Smoke". This standard has been in effect since January 1997. This standard will be implemented from January 1st
This standard will take effect from the date of entry into force and will replace GB9804-88 at the same time. The National Environmental Protection Administration is responsible for interpreting this standard. 1 Scope
National Standard of the People's Republic of China
Smokemetric card standard
Standard for smokemetric tabletGB9804:1996
replaces GB9804-88
This standard specifies Basic performance and technical requirements of standard smoke cards for filter paper smoke meters (hereinafter referred to as smoke cards). This smoke meter card is suitable for indexing and calibration of filter paper smoke meter indications. 2 Referenced standards
The provisions contained in the following standards constitute provisions of this standard by being quoted in this standard. At the time of publication, the editions indicated were valid. All standards are subject to revision and parties using this standard should explore the possibility of using the latest version of the standard listed below. HJ/T4-93 Diesel Vehicle Filter Paper Smoke Meter Technical Conditions 3 Symbols and Definitions
3.1 Symbol
Sr—indicates filter paper smoke (filtersmokemetry). FSN-a unit representing the smoke degree of filter paper (filtersmokenumber). 3.2 Definition
The smoke degree of filter paper is:
Sp=(1-R./R.)X10
Where: R
Reflection factor of clean filter paper;| |tt||R——Reflection factor of filter paper after being dyed black. 4Technical content
4.1 Dimensions and specifications
4.1.1 Dimensions
The effective working area of ??the smoke card is 36mm×36mm. 4.1.2 Specifications
(1)
There are two specifications for the smoke degree card: one of which has a smoke degree value of 0.5 to 9.0FSN with an average tick level difference of six sheets·set; the other has a smoke degree card The values ??are 3.0FSN and 4.5FSN, each set of three.
4.2 Performance requirements
4.2.1 Spectral selectivity
The spectral reflection factor of the smoke card surface coating should remain neutral in the 380~780nm spectral range, and its selective absorption is allowed The deviation should be less than ±0.10 of the corresponding base number.
4.2.2 Diffuse reflection characteristics
The diffuse reflection factor of the smoke card surface coating should be equal to or greater than 0.80. National Environmental Protection Administration approved 1996-10-04 for implementation on 1997-01-01
4.2.3 Reflection Uniformity
GB9804-1996
Reflection Uniformity of Smoke Card Surface Coating Should be greater than 0.99. 4.2.4 Chemical stability
The chemical properties of the surface coating of the smoke card should be stable. Under natural conditions, the annual change in the spectral reflection factor should be less than ±0.005. 4.3 Performance test || tt||4.3.1 Spectral selectivity test
Use a spectrophotometer with an uncertainty of less than 0.5% to measure the spectral reflection factor of the surface coating of the smoke card in the spectral range of 380 to 780nm, which should comply with 4.2.1 provisions.
4.3.2 Reflection Characteristics Test
Use a variable angle reflectometer to measure the average brightness of the smoke card surface at 20° and 70° angles to the normal when the surface of the smoke card is illuminated vertically. The ratio to the brightness value measured at an angle of 5° shall comply with the provisions of Article 4.2.2. 4.3.3 Reflection uniformity test
In the effective working surface of the smoke card, use a measuring hole with a diameter of 10mm to measure the reflection values ????of five points in sequence in the upper, lower, left, right, and middle positions. The minimum reflection value is consistent with the five points. The ratio of the average points shall comply with the provisions of Article 4.2.3. 4.3.4 Chemical stability test
Before the test, first use a spectrophotometer to measure the spectral reflectance value of the surface coating of the smoke card. During the test, use the smoke card with an incandescent lamp with a luminous intensity of about 1300cd, and test the distance The sample is 100cm irradiated for 48 hours, then placed under natural light for 24 hours. Finally, a spectrophotometer is used to measure the spectral reflectance value of the smoke card, and compared with the reflectance value of the smoke card before illumination. The deviation should comply with Article 4.2.4 It is stipulated that 4.4 Calibration conditions
44.1 The value of the smoke card should be calibrated by a department jointly confirmed by the State Technical Supervision Bureau and the State Environmental Protection Administration. The spectral conditions and geometric conditions of the calibration device should comply with the provisions of HJ/T4-93. Its total uncertainty should not be greater than 0.05FSN. 4.4.2 The physical standard sample of the smoke degree card should have the words GB9804 and the smoke degree card logo. 4.4.3 Calibration period
The calibration period of the smoke card is one year. If the surface coating of the smoke card is obviously contaminated or scratched, it should be scrapped. 4.5 Use and Storage
4.5.1 Usage Requirements
When using the smoke card, mechanical damage should be avoided, and the coating surface should be avoided with hands. 4.5.2 Storage conditions
When the smoke card is not in use, it should be stored in the packaging bag. At the same time, it should avoid the influence of humid environment and direct sunlight. R
0.1
0. 2
0.3
0. 4
0.5
0.6
0.7||tt ||0.8
0. 9
1.0
1.1
1.2
1.3
1. 4
1. 5
1.6
1.7
1.8
1.9
2.0
2.1
2.2
2.3| |tt||2.'4
2.5
SF
0. 75
0.84
0.93
1. 03|| tt||1.12
1.21
1.31
1.40
1.49
1.59
1.68
1.77||tt| |1.87
1.96
2.05
2.15
2.24
2.33
2.43
2.52
2 . 62
2.71
2.80
2.90
2.99
GB9804-1996
Appendix A
(prompted appendix )
Comparison table between the standard smoke value Sr and the previous standard smoke value R R
2.6
2.7
2.8
2.9||tt| |3.0
3.1
3.2
3.3
3. 4
3.5
3.6
3.7||tt| |3.8
3.9
4.0
4.1
4.2
4.3.
4.4
4.5
4.6
4. 7
4.8
4.9
5.0
Sr
3.08
3.18
3.27
3.36
3.46
3.55
3. 64
3.74
3.83bZxz.net
3.92
4.02
4.11
4.20
4.30
4.39
4. 48
4.58
4. 67||tt ||4.77
4.86
4.95
5.05
5.14
5.23
5.33
Note: S=A+ BXR (where A=0.650; B=0.935). Rb
5.1
5.2
5.3
5.4
5.5
5.6
5.7
5.8| |tt||5.9
6.0
6.1
6. 2
6.3
6.4
6.5
6. 6
6.7
6.8
6.9
7.0
7.1
7.2
7.3
7.4| |tt||7.5
Sp
5.42
5.51
5.61
5. 70
5.79
5.89
5.98
6.07
6.17
6.26
6.35
6. 45
6. 54
6.63
6.73
6.82
6.92
7.01
7.10
7.20
7.29| |tt||7.38
7. 48
7.57
7.66
R
7.6
7.7
7.8
7. 9
8.0
8.1
8.2
8.3
8.4
8.5
8.6
8.7| |tt||8.8
8.9
9.0
9.1
9. 2
9.3
9.4
9.5
9. 6
9.7
9.8
9.9
10.0
SF
7.76
7.85
7.94| |tt||8. 04
8.13
8.22
8.32
8.41
8.50
8.60
8.69
8.78| |tt||8.88
8.97
9.07
9.16
9.25
9.35
9.44
9.53||tt ||9. 63
9. 72
9.81
9.91
10.00
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