This standard specifies the basic parameters, technical requirements, test methods and markings of microscope condensers. This standard applies to microscope condensers for transmitted light observation. GB/T 9247-1996 Microscope condensers GB/T9247-1996 Standard download decompression password: www.bzxz.net

National Standard of the People's Republic of China
GB/T 9247—1996
Microscopes
Condensers
MicroscopesCandensers
1996-08-13 Issued
State Bureau of Technical Supervision
1996-12-01 Implementation
National Standard of the People's Republic of China
Microscopes
Mieroscapes-
Subject Content and Scope of Application
Cnndeesers
This standard specifies the basic parameters, technical requirements, test methods and markings of microscopes. This standard applies to microscopes for transmitted light observation. 2 Reference standards GB9245 Microscope lock, removable turbulent mirror and color filter connection size GB/T15464 Instrument and meter general technical record JI1/T3379 Optical receiver technical requirements 3 Basic industry data 3.1 Optical series and basic parameters According to the provisions of Table 1, the high-speed low-power system can be used for large-scale focusing. Two-piece condenser, three-piece condenser, color stem/flow thick pad condenser, clean field condenser, low aperture, applicable material range = 0, 80±center,65
outside adjustment 2 inside +.13
inside-1.25*19
more than internal balance [6. 15
3.2 The connection size of the spotlight should meet the requirements of GB9245, 4 technical requirements
--15G
10~100
GA/T9247-1996
C92475
can check the aperture of the light
4.1 When the front group is connected to the front group of the optical mirror, the front group speed mirror offset on the fixed mirror plane should not be more than 0.02m. 4.2 The bottom of the optical mirror axis and the center of the optical path are based on the car policy. 4.3 The variable aperture optics should be basically round, easy and comfortable to adjust, and the minimum aperture should be less than 2mm. 4.4 The microscope should not have obvious stress when using polarized light. 4.5 The illumination of the microscope should be uniform, and the stage should not be on the test sheet. The field of view of the dry dark field microscope should be basically dark, and the background of the field of view of the liquid dark field microscope should be relatively dark. The specimens should be clearly observed and the height should be sufficient. 3.6 The liquid bright field condenser and the wave trap field microscope should have reliable sealing measures. 4. The appearance and sensory requirements of the microscope should comply with the provisions of JN/T3379. 5 Test method 5.1 The correctness of the test stand must be determined before use (Article 4.1 of this standard) 5.1.1 Or test equipment: a. 10x cross-scaled lunar mirror; b. cross-scaled ruler with a division value of 0.02mm. The maximum error between any two divisions is ±0.005ma1; : special display stand (conforming to the objective microscope, with condenser): objective lens 5.1.2 Test conversion process: Install the inspection microscope on the color light pin of the special microscope stand, and install 10x objective and daylight mirror on the converter. 5.2 Coaxiality of the focusing lens axis and the aperture light (Section 4.2 of this standard) 5.2.1 Test tool: a. Telescope, b. Special microscope (conforming to microscope illumination. Remove the condenser). 5. 2. 2 Telescope test procedure
Install the object to be inspected on the movable seat of the special microscope stand: insert the centering mirror into the eyepiece, etc., and adjust the telescope to the maximum opening. Move the telescope to the highest position, center the telescope, select the sharp image in front of the condenser, pay attention to the aperture light, adjust the centering telescope to make the aperture light image clear, observe the aperture light center and the light reflected in front of the condenser, the two centers should basically coincide.
5.3 The quality of the aperture (Article 3 of this standard: manual replacement and visual inspection.
5.4 Use a condenser with polarizing light (Article 1.4 of this standard) 5.4.1. The test worker only needs to use a special polarizing microscope stand (remove the condenser, objective lens and mirror). 5.4.2 The test procedure is:
install the condenser to be tested on the movable polarizing microscope, and under the main alternating light, the field of view should be based on the image. 5.5 The quality of the dark field microscope (Article 4.5 of the standard) 5. 5.1 Test light 1. bzxZ.net
a. The particle size of the specimen is evenly distributed:
fold. Special work stand (take control mirror): cn times objective lens, d.5 times objective lens, 40 times objective lens with a numerical value of 1: [1C times heliostat (the field number is 4). 5.5.2 Test procedure CB/T 9247-1996 On the light-distributing device of the special pressure-guided micro-chain, put on the effective inspection dry dark field hidden light microscope, install 15 times and 40 times objective lenses on the converter, insert 1: times heliostat into the heliostat, put the granular evenly distributed specimen on the stage, adjust the dark field condenser correctly, when observing with the 10 times objective lens, the case is clear and there is no unevenness in the individual items. When observing with the 10 times objective lens, the image is clear and the field of view is basically dark. On the movable stand of the magnifying mirror, install the liquid field condenser. Install the 10x objective lens on the converter, insert the 1Cx heliostat into the heliostat, put the objective on the stage, and evenly distribute the specimen. Adjust the specimen on the field condenser and the specimen surface correctly. The specimen image should be clear, the background of the field should be relatively dark, and the whole screen should show unevenness. 5.6 The liquid condenser should be uniform (Article 1.4 of the vehicle standard) 5.6. 1. Test 1. The test equipment is not filtered (with the shadow microscope). 5.6.2 Test procedure The front end of the bright field microscope to be tested is immersed in the liquid 41, and the inside of the condenser should be raised to the right. 5.7 The appearance of the condenser should be required for inspection and daily testing (Article 4.7 of this standard). 6.1 The symbols of the condenser should be in accordance with the provisions of Table 2. Table 2 Concentrator (lower, lower, lower) 1. In addition to the mark symbol, the same type of case mirror also carries the mark value and manufacturer's name (or trademark>: 6.7 packaging conforms to GB/T15464 before the relevant provisions of additional instructions,
This standard is proposed by the Ministry of Machinery Industry of the People's Republic of China, and the National Technical Committee for Optical Instruments Standardization is responsible for drafting and drafting. 3
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