HG/T 3557-2001 Determination of the uniformity of photosensitive materials HG/T3557-2001 standard download decompression password: www.bzxz.net

IC5 37. D40. 20 ;71. 040. 50G81
Preparation number: 10128—2002
Chemical Industry Standard of the People's Republic of China
IIG/T 35572001
Deterrence of the uniformity of photographic materials
Deterrence of the uniformity of photographic materials2002-0124Promulgated
Implementation on 2002-07-01
Promulgated by the State Economic and Trade Commission
HG/T3557—2001
This standard is a revision of HG/T5557-138 Determination of the uniformity of photographic materials. The main differences between this standard and HG/T35571986 are: some modifications to the applicable scope and test methods. The name of the standard has been modified.
This standard shall be replaced by T557-85 from the date of implementation. This standard was prepared by the Policy and Regulations Department of the former State Petroleum and Chemical Industry Bureau. This standard is under the jurisdiction of the National Photosensitive Materials Standardization Technical Committee. The drafting unit of this standard is China Lucky Film Company. The drafter of this standard is Ren Ronghua.
This standard was first issued as a professional standard ZmG8C001-R6 in May 1980, and was adjusted to a recommended industry standard in 1999, and the number is IIG/T3557-1986.
Chemical Industry Standard of the People's Republic of China
Determination of the homogeneity of photosensitive materials
Leterminatlon of the alformity atpbologruphic mxleriols
This standard specifies the determination method of the homogeneity of photosensitive materials based on excitation. HG/T3557—2001
This standard is applicable to the determination of the homogeneity of photosensitive materials based on simulated light and black-and-white and color electrochromatic films.
This standard is not applicable to photosensitive materials that are illuminated by special non-lamp light sources (such as luminescence and charging light). 2 Referenced standards
The provisions contained in the following standards are incorporated into the provisions of this standard by reference in this standard. When the standard is specified, the versions shown are valid. All standards are subject to revision. Parties using this standard should consider the possibility of using the latest versions of the following standards. GR1150-199 Conditions for measuring transmittance of photographic materials (NES5-21955) T115011589
Conditions for measuring light intensity of photographic density test disks (15053:1984) Geometrical elements for photographic reflective grids GB/T12823-1551
General rules for measuring sensitivity of silver-colored photosensitive materials Part 1 Applicable to white tungsten light and simulated light T15611994
Sample light conditions (NEG1507585:1984) 3 Definitions
This standard adopts the following definitions. Uniformity
The uniformity of the density of the obtained part of the light-emitting film is measured by sampling, immersion and slicing under the conditions of this standard. The uniformity of each specified grade is shown in the relevant data. For color films, the uniformity of color separation is shown in the principle of uniformity and the determination of the comparison grade. The samples are produced, washed and measured under the same standard light model. The products are compared according to the grade. 4.2> Determination of the light-weight ratio. The reaction coefficient (or average slope) of the photosensitive material is less than or equal to 2.0, the comparison number density range is 1.000.10, the reaction coefficient is from 2.0 to 4.0, the comparison density range is 1.351.0.20, and the comparison coefficient greater than 4.0 is 3.00±0.3. The comparative sensitivity should be located at the line part of the characteristic curve of the color negative film comparative density range is -0.70.[0.5] Belt and equipment 5.1 Photosensitive receiver Approved by the National Equipment Administration Committee on January 24, 2002, and implemented on July 1, 2002 HG/T3557-2001 Use a monthly calibrated non-European dimming system photosensitive instrument to test the color temperature and spiral light time of the light source. The color temperature and spiral light time of the light source should conform to the requirements of the sensitive material to be traced. 5.2 Density ratio The use of diffuse transmission density measurement equipment should conform to GB/T11E0C. The optical potential measurement equipment should conform to GB/T11501 densitometer. The recording reflection density measurement equipment should conform to GB/T13822. The recording reflection density measurement equipment should conform to H/T11301 densitometer. 5.3 Light modulation device Www.bzxZ.net
Use a frequency-adaptive light-reducing device. The standard cell frequency should be gray. The selective absorption should meet the requirements of 3.5 in GB/T150%1-191. The scanning level is generally 0.10, 0.15 or 0.20, which can be selected according to the contrast coefficient of the photosensitive material to be tested. The length and thickness of each level ensure that the density of the laser hole is uniform: the density difference of different parts in the same level is not greater than .25.4 Processing equipment
Use a continuous light-reducing material to measure the light sensitive material, and ensure that the uniformity of the process is obtained. 6 Sample preparation and test environment
6.1 The sample should be representative, and generally different parts of the whole body should be taken. Take at least 3 pieces of each film axis, and the sampling site and sampling blood on a specific test day shall be determined according to needs. The samples shall not have mechanical strain, fingerprints and apparent defects. 6.2 Each sample shall be cut into a sample with a length of not less than 180 mm and a width of 35 mm: the sample end shall be marked with the number, and the sampling location shall be marked if necessary. All the samples to be tested shall be a group. 6.3 The samples shall be placed at a temperature of (23°C to 2°C) and the sample shall be exposed to light after equilibrium with humidity (<50°C). 6.4 In order to avoid the possible influence of "safety light" on the test results, the alarm, noise light and impact light shall be carried out in the whole environment. 7 Sequential group of samples: The continuous peak light test is completed. 7.2 The light-emitting part should be in the middle of the sample. 7.3 The samples after slow exposure should be mixed with the same liquid in the order of the two pieces of film. The two pieces should be placed on the rack in the environment specified in 6.1 and 6.4. 7.4 Density measurement: Measure the slow-emitting film at a speed of 1 m above the light source. Take the average of the three numbers as the density comparison. Measure the density of the three parts of the film separately. The results are compared. The highest and lowest values ​​are used to represent the density of the photosensitive material.
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