HG/T 3008-1999 Determination of surface resistance of substrate HG/T3008-1999 standard download decompression password: www.bzxz.net

IC537.040.20
G80,GB1
Chemical Industry Standard of the People's Republic of China
IIG/T 3008~-3010—1999
HG/T3635--3641—1999
Photosensitive Materials and Test Methods
Published on 1999-06-16
2000 06-01 implementation
National Petroleum and Chemical Industry Bureau issued
1Cs37.040.20,37.060.20,71-040.60 filing number, 3735-1999
HG/T30081999
This standard is a chemical industry standard TGT-9R film surface resistance determination method. From the implementation of this standard, it will replace HG/T333%198: This standard is originally proposed by the Ministry of Chemical Industry, and this standard is issued by the Guangsong Standardization Technical Unit of the Ministry of Chemical Industry. The general list of this standard is: China Film Corporation, Wu Almei Photosensitive Chemical Company. The drafters of this standard are: Liu Jin, Jiang Ronghua, Jian Bi Dang: This standard was first issued in 15 as a national standard, and in 2015 as a standard for the chemical industry, and it was renumbered.
1 Scope
Chemical Industry Standard of the People's Republic of China
Determination of surface resistance of film substrate
This standard is for the determination of the surface resistance of rolled film substrates, 11999
HG3008
Generation HG/T008198G
This standard is applicable to the determination of the surface resistance of rolled film substrates and plastic coated substrates and the determination of the surface resistance of single sheet substrates and plastic coated paper. The surface resistance of the surface of the film substrate and plastic coated paper can be determined according to this standard. 2 DefinitionswwW.bzxz.Net
This standard adopts the following definitions
2.1 Surface resistance rlesis:ancc
The quotient of the voltage applied to the electrodes on the surface of the sample and the current flowing between the electrodes after a certain period of time. The core current is mainly the current flowing through the surface of the sample, including the current component flowing through this volume, which can be ignored as much as possible between the two electrodes. 2-2 Current Sufaccrusistivi.y
The current intensity on the surface of the sample follows the current density, that is, the unit surface resistance. 3 Principle of the method
Use the principle of measuring the specific resistance of the meter directly: Figure 1. First-class Sichuan source electric music. Electric meter. Standard printing also changed the design drawing of the large device for testing and measuring the power supply. Beijing
National Petroleum and Chemical Industry Bureau 1999-06-16 approval 2000·06-01 implementation
HG/T 3008—1999
Travel timing, sample meter and electricity, and input standard automatic state, user receive, and control on the DC function, the DC amplifier will amplify the weak current passing through the sample and then be detected by the galvanometer, so as to calculate the surface of the sample (the large current meter sets the limit resistance value).
4 Instruments and equipment
4.1 High resistance
The three technical conditions should meet the following requirements; Measurement range: not less than 110.
The measurement cover is greater than 10\, the instrument setting is not more than % to measure the resistance below 10\, and the instrument error is not more than ±10.
Zero point displacement: not more than 4% of the full scale per hour. The test surface resistance should be more than 10 times the input standard resistance. Or the circuit should have good economic conditions,
The power supply should be a DC stable power supply, or the test voltage error should not be less than 10. 4.2 Flat plate
The material of the electrode is conductive metal, and the surface of the sample is not less than 10V. The size requirements are as shown in the figure? 12-jin Photo: 5-piece evaluation and protection model: g Juue e iuut
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Figure? Schematic diagram of double-plate test strip configuration
5 Sampling and test specimen requirements
After removing the base of the film, discard the outer 3~5 layers. Take 20m long full-width film and use 3~b test strips (test strips should be at least 5cm long) with equal spacing. Take the test strips and place them in order. The sample should be more than 7m longer on each side than the electric root.4
HG/T3708-1999
Select the visible defects such as flatness, light bubbles, new, semi-quality, etc.: do not touch the surface of the transmission chain and the joints during the measurement.
6 Test strip conditioning and measurement environment
The finished film should be placed at a temperature of (23±2): (5G-5 )%, the test should be placed in the same environment for at least 241: the test can only be measured if the environmental conditions are the same as those of the sample or the sample. 7 Operation
According to the instrument manual, the operation and calculation results should be carried out. The installation of the sample and the test should be done with extreme caution to avoid the formation of sensitive current channels. The test voltage is 1, -250.100, 1000V, 130V. After charging for EGs, the temperature is set according to the following parameters: 8 Test results
8.1 Read or calculate the surface resistance of the test battery and the substrate according to the instrument manual. Multiply the decimal point by 1C (integer), take the effective number, the unit is ohm 10)
The surface resistance of the substrate is the geometric average of the surface resistance of each sample. -2 Surface resistivity
Surface resistivity is calculated according to the formula,
In the formula: Surface resistivity of the sample.0;. Therefore, the surface resistivity of the sample.
One electrode or the desired circumference.m:
Read the distance from the sample (Figure) m.
Still to the moon shape of the electric absorption, the effective circumference () is calculated by (2): #=(a)+)
In the formula, the meaning of the symbols is as follows:
9 Repeatability of the method
13 The relative standard deviation of the results of the repeated measurements is not large under 10 requirements. 10 The test report shall include the following: a) Sample name, batch number, shaft number, manufacturer, production date, location and style number, and the following diagrams of the positions of the samples: a) The test ends of the samples shall be tested. b) The test pressure shall be measured. c) The test period and the surface resistance or surface resistance of the test piece shall be recorded.
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