Some standard content:
[Cs 15.50
qtEiac-c-ae-CraeCEces-koNuKkaJG
People's Republic of China Construction Industry Standard JG/T 191999
Test standard for laminar clean bench
Test standard for laminar clean bench1999 - 06 - 04 Release
Released by the Ministry of Construction of the People's Republic of China
1999-06-04Implementation
JG/T19199S
xNrKAa
qtEiaC-eC-aeCTadtcega-kNKa
According to the requirements of the National Quality Supervision Bureau (99%) No. 215, the Ministry of Construction has transformed 11 national standards approved by the State Technical Supervision Bureau in 1992 into industry standards, and has sorted out the product standards items approved and issued by the Ministry since 1SS2, and adjusted them to benefit the market. The Ministry of Construction announced the product standard of the Ministry of Construction (No. 1 document) for the 18K laminar flow clean workbench, and issued a new standard number [G1-1 for the new standard. Now only the original standard is revised, and the original standard version is reprinted after the addition of this statement.
People's Republic of China Construction Industry Standard Laminar Flow Clean Workbench Inspection Standard
T'es! stnndurd fur luminur eleun benchETKSNKA:S
qOE-ei-iC-eO-se-CraagEC-Neca-rTKNrKJC/T:19-1999
This standard is mainly used for the reference of other local purification equipment in the treatment work of the layer construction station. 1 Terminology
1.1 Local purification equipment
It is a device that measures the air cleanliness of the particles in the specific same part of the research room to the concentration of particles per liter of air. It is called local purification equipment. It refers to the purification unit with high efficiency air filter, such as clean air purifier, clean laminar flow, etc.
1.24 Melamine
It is a base system composed of particles or particles in the gas. 2 Technical requirements
2.1 After the clean bench is installed, it must be tested for leakage and filtration rate. When the test is carried out according to 3.1.1, if the concentration of the original downstream exceeds the upstream concentration, it is considered to have symptoms. According to 3.2, the cleanliness control test is carried out according to 3.2. The working degree is: C.5um. The particle size must be 3.5/. This specification allows 5μm. When the speed is tested in 3.3, the average speed of the operating area is within the range of 0.3-.61m. If there are special requirements, users and manufacturers can contact the dealer at: The average wind speed should be within 23% of the range. The noise level should be tested according to 3.5. The noise level should not exceed 6A. If there are special requirements, please contact the manufacturer. 2.5 According to the dynamic test, the amplitude of the three axes (3) of the operating table should not exceed 5. There are special requirements. The user and the manufacturer shall negotiate separately: 2.6 According to the test, the operating table shall not be less than the center. The light is soft and the light is free. If there are special requirements, the user and the manufacturer shall negotiate separately.
2,7 Bay|| tt||2.7-1 The surface of the panel shall not be damaged and the agent shall not fall off: When the operating table has acid and corrosion resistance requirements, the bottom of the panel shall be made of acid-resistant materials to reduce the risk of corrosion.
2-7.2 The high-efficiency air filter shall have passed the test and shall not be degraded or corroded when used in the air. 2.7.3 When installing high-efficiency air filter, materials that are not easy to age shall be selected to avoid leakage and be easy to maintain and replace.
Approved by the Ministry of Construction of the People's Republic of China on June 4, 1999 and implemented on June 4, 1999||t t||JG1/T19-1999
TKANKA
q0E-ei-iC-eO-ae-GraagCEC-Neca-TTTKiNrKk2.7.4 The coordination of each component shall be well managed, and the uniformity of the door panels, expansion panels, and the edges and seams of the panels shall meet the requirements of the machine matching. 2.7.5 The screws shall be free of corrosion and thread slip. The screw grooves shall be free of cracks. 2.6 The box shall meet the requirements of the parts for use. There shall be no defects such as burn-through, leakage, and deformation. 2.7.? When the exhaust system is selected in the room where flammable and easily damaged materials are produced, the fan and air flow shall be aging-resistant or equipped with spark arresters. 2.8 When the workstation is operated under the condition of acid, degrading agent, or other pollutants, its structure must be able to keep the air with such contaminants away from the outside. 2.8 Electrical system 2.8.1 Insulation impedance test The insulation should be tested according to 2.8-2 Electrical insulation. There should be no breakdown or flashover during parallel alignment test. 2.8-3 Assembly of equipment 2.8.3.1 The main components of the electrical system should be arranged according to the standards of the industry and the standards of the machinery industry. The installation of the main components should not block or disrupt the airflow in the working area and ensure that the clean workpiece is safe. 2.8.3.2 Selection of components for machine B: The technical requirements of the machine. 2.8.3.3 The design of fluorescent lamps, yellow light lamp holders and starters shall comply with (11313.77 fluorescent lamp holder and starter coordinates 2.8.3.4 Switches and indicator lights shall be located where it is easy for operators to operate: they shall comply with the instructions and buttons in GB4053.583. 2.8.3.5 The selection of the month music war virtual shall comply with the relevant regulations: 2-B.3.5 The electrical system shall be equipped with a large load fuse or a new device. The main parts of the gas system and the purification receiver shall be able to be connected to the sand
2.3-7 Gas system wiring diagram 2.8.3.8 The electrical components and parts should be firmly assembled according to the plug-in, and the layout should be reasonable and neat. The solder joints should be smooth, light and short, and there should be no solder joints. 3.1 Leakage test
The test should be carried out according to the test results. The air filter should be replaced by the air filter. The air should be clean and sound-proof. The air outside the body should not be exposed to the air through the sensor hole. The phenomenon of the air passing through the box is not completely eliminated. See Figure 2 (Figure 2). 3.1.1 Leakage test
3. 1. 1. 1. 1 The instrument shall adopt a full-scale instrument or instrument. Its performance requirements are as follows: more than 0 dissolved gas> less than 0.3% of the cold smoke> the total concentration is usually 0.1~1/3.1.1.2 Test method: When the cold smoke is discharged from the high-efficiency air filter, the sampler of the detector shall be about 2.5m above the outlet of the high-efficiency air filter. The sample volume shall be 4.210/[28.3/mim]. The speed of the filter shall be 5cm/s. The liquid concentration measured downstream and the liquid change on the north side are greater than % village, it is considered that there is a clear leakage, and the training is completed. 2
3..2 Temporary test
3.1.2.1 The gas entering the new
JG/T19
from the original gas entering the ground
KANYKA
qtEi-ac-ec-ae-oradetc-ega-rrykoNuka gas
Figure 1 Schematic diagram of gas leakage and horizontal point flow of clean gas 1 The gas entering the ring is relatively large
The gas beat
Figure 2 The gas falling stock is full and the active volume is straight laminar flow active clean working platform 3. ]. t. 1 Phase:
3.1.2.2 Condensation test method
In the clean working box body connection seam outside the canal and the probe working door edge outside the solid environment of the shift, the (gas fall wins (cold canal) and then use the sampler to connect the avoidance and the required work port violation to invite inspection., or the test meter
horizontal layer of the clean chemical table in the working room group 3cm return to the long, cm downstream, and take the laminar flow clean chemical table, tons center with the operator baffle inner surface, m, the efficient gas through the mountain or the whole pot full embedded clothing surface 1C beat place to invite inspection. When the instrument (light width meter reading exceeds the case value, to confirm the right gas path slightly tempting see figure, the figure, must be carried out with S
h external penetration test probe fast edge)
JC/T 19--1999
trkoseikAs
qCe-et-ic-eOae-Craag-cBoNeca-rrrkNrKkaThe horizontal flow of clean work is virtual at a distance from the edge of the opening. The distance from the inner surface is 5: (see Figure: and the weight of the clean grid is as follows: the lower edge of the front baffle should be cm above the inner surface of the front baffle and the return air should be taken from the table. The return air should be taken from 5m to the extreme. The inspection is carried out at the time of the photometric reading exceeding the value of the external reading. It is recommended that there is air trapping and glue induction.
Set up an external induction test for Hanlogic to inspect new products. 3.2 Cleanliness
Please be full Figure 3 shows the change of the position of the measuring point of the platform under the method of gas layer liquid under the water layer, and the value of the transmission is, the inspection center is below, and the light measurement is passed through the air sea gel. The hc: Figure 4 shows the schematic diagram of the measuring point position of the platform before the vertical flow net. The measurement is carried out according to the point position, and the cold and wet area is below 60 3.2.1 Instruments JGT19-1999 From the source of the gas moistening unit KANYKA qtEeiac-ec-ae-aradyctbcNeg arrykNukka and aerosol from the horizontal laminar flow clean bench external attractive measurement point stomach schematic diagram X
of the air rate cushion
with a small part of the discussion
of the (travel section
of the heart c
figure S air rate from the vertical flow activity work external attractive point fast schematic diagram [a movable consumption 2 a pressure relief piece a effective air through the mother-in-law signature: return air rush version a benefit position work reverse inspection change u. with a: the whole work front dust filter particle meter exciting
3.2.2 measurement method
3.2.2.1 clean change test. The aerosol added change at the suction point for the heart.: the particle size shall not be less than 33 000/L, when the air inlet cannot meet the above three indicators, it is advisable to emit more dispersed DOP gas at the negative air outlet of the clean work. 3.2.2.2 When the drop in the air outlet reaches the actual killing level, the test is carried out at the center of the mountain parallel to the outlet of the main filter (the distance between the clean work station and the work station is m:) for 2 times, and the average value is calculated. 3.2.2.3 Select the work area gas melt policy to waste or use a large flow (47.2x1nm28.81./mir2) dust particle counter, or a small dust particle counter can be used. The machine volume shall not be, "1: 5
J: 1 19—*999
KAONKAB
qtE-i-ac-ec-ae-rasec-ega-rrikoNka3.2.2.4 The clean working area should be tested by the clean working area air rate test method within 5 hours, and the test should be conducted more than 10 times.
3.2.2.5 When the test is 5 sieves high, it is recommended to take more samples. Only when the test is repeated, the test efficiency is reduced.
3.2.3 The operating area under the comparable working environment recording section can be used as an air meter; et
Maozhong: The working area is 0.5 higher than the air flow rate! (Inspection): The average aerosol density of the working area Um at the suction point of the working table is 1.5, and the viscosity is comparable to that of the working environment. The value is 35 (). 3.2.1 Cleanliness of the working area under use conditions (1) The cleanliness of the working area under use conditions is not in line with the small range of the working environment. The test is carried out according to the seven-difference test, and the actual measured density of the air box in the working area is used to evaluate the cleanliness of the working area. 3.3 Wind speed 3-3.1 Night instrument Use a portable hot bulb electric anemometer or a heavy-duty thermistor constant temperature anemometer for testing. The selected instrument The error of the instrument shall not exceed 1 °C of the test data. The anemometer shall be calibrated according to the following requirements. 3.3.2 Test method
3.3.2.1 Place the panel at 10m below the main selector and divide it into 21 equal parts. The center point of each area is the wind measurement point. However, the error between the two points shall not exceed 25 °C.
Science and Technology Wind Point Setting
3.3 .2.2 Calculate the wind value of each measuring point to get the average wind speed. The wind speed average should be approximately the same as the provisions in 2.3: Wind speed average formula:
Formula:
Wind speed at the same location (small low,
and the arithmetic mean value /s:
3.4 Wind speed measurement formula under the whole negative belt condition
-Vt×100%
When the main filter After the force increases to about twice the planned force (i.e. the resistance under the design wind benefit), it is required to build a clean working platform in the working area of 4 consecutive small reports of 0.5, and the flow must be used in the test station: new products 3.1 Instruments and equipment
3.4.1.1 Anemometer 3.3._ Standard extension selection, 3.4.1.2 Fill in the inclined micro-manometer, the precision is not less than 1 level. Calibration bottom connection JIC172-76 rated inclined micro-T meter calibration is now avoided 3.4.1. 3wwW.bzxz.Net
The damping baffle is made of carbon fiber, and its size is the size of the high-pressure air filter installed on the workpiece table. Drill holes evenly on the baffle, and the pressure of the quick-hole sweep plate plus the high-efficiency filter is about the final resistance of the high-pressure filter (that is, the final resistance reaches one times the value of the cut resistance). It is also called the pool material as the positive layer, 3.4.2 Method
In front of the high-efficiency filter, the micromanometer is placed behind it, and the baffle with lead holes is installed in close contact with the high-efficiency filter (the baffle opening should be added on the opposite side if the upper side is visible), and the installation should also be Note: According to 3.3.2, the measurement is carried out for several times. The working area and the wind level are within the specified minimum wind speed of 11 °C. 3.5 General use 3.5.1 The equipment shall meet the requirements of 3.5.2 Test points 3.5.2.1 The clean working table shall be located at the center of the working table, and the height shall be 110cm (equivalent to the ear bone of the staff sitting outside the table at 20°C). The sound points of the equipment shall be arranged on the main surface of the equipment, and the horizontal distance from the center shall be 1m. The measurement shall be carried out on four sides, and the arithmetic mean of the four points shall be taken, as shown in the figure! 1/4
piece of work start-up production
people estimate work
measurement point layout plane west
Figure 3 clean 1 division measurement point layout diagram
country! Ma Department of chemical modification measurement point layout plane outstanding clean workbench domestic
please point
3.5-2.2, the chemical equipment should be measured under high running conditions and the frequency range of the input sound level and the frequency of the frequency of the reasonable mouth is 53~&2. For the factory production ratio or on-site inspection, that is, the equipment after maintenance is tested A sound level, and the new production certificate should also be tested.
3.5.2.3 If the noise level after measurement is still relatively high, make sure to conduct a measurement on the ground 1 meter ahead of the actual measurement. There should be no other reflective objects within the range of 2% of the device. The equipment should be in working order and some parts should be blocked and started. Pay special attention to the influence of wind and electric shock generated by airflow on the measurement.
3.5.2.4 When measuring the throat! The sum of the noise values is greater than or equal to the A sound level. It is called the effective level of the measured position, which is ~B (the actual noise value is combined with the value of the double or forget _ for 4~, and the sense is full 2 beats less than 3B. The light effect is stopped.
JG/T 19—1999
3.5.2.5 Determination of the A sound value of the clean workbench is 2.4. 3.6 Detector
3.6.1 The projector
qtE-i-ac-ec-ae-rasec-ega-rrikoNrka should have a 2--500Hz alarm idea, and the displacement is .1m~1.m. The alarm is 0.0~10 minutes. The instrument calibration should be carried out according to the requirements of the instruction manual: 3.E.2 Test method
3.6.2.1 When the clean workbench is under normal operating conditions, the total report of Y, Z-axis is measured.
3.6.2. The clean workbench to be tested should be placed on the ground with relatively small movement. Avoid the influence of the surrounding environment during the test.
3.6.2.3 The amplitudes of the three axes should all meet the requirements of 2.5. 3. The test method
Use a positive step-by-step illuminance meter: follow the instructions for use. 3.7.2 Test method
The measuring points are arranged in the center of the first working axis, evenly distributed, and the actual station is taken as the virtual station of the second working platform: the amplitude should meet the requirements of 2.5.
3.8 Impedance
3.8.1 Receiver
Use a 5G3V megohmmeter:
3.8.2 Test method
Li Zhao—6 Basic test methods for low-voltage power supply 7—Low-voltage power distribution technical standard: For example, the insulation resistance between the line part of the heavy electrical device and the metal structure of the workbench. 3. 9 For pressure test, according to the relevant provisions of B61735, the edge part of the workbench shall be subjected to 1UUV frequency sweeping 1it·breakdown flash inspection. 4 The abbreviation of the inspection report shall be 4. Each reverse inspection shall be carried out according to the standard reverse inspection record and the whole clean work nameplate registration form; "clean actual record form: 3 wind actual measurement record form!
table: Oh Lu actual creation record form;
table root dynamic actual measurement record form!
walk" according to the solid pollution measurement record form. 4.2 For special test, it can be recorded and handled according to the specific situation. Table 1. The previous registration of your cleaning work is in
ilr abbreviation
legal purity level
length, t/miel
4. Source type)
appearance
length × width quotient
product number
Australia point inverted
change area center
inhale!
Equipment number
Selection rate, 1/mia
Various inch.a:n
Reputation as a citizen
Calibration number
Test quality
Test efficiency
[G 19—1$99
Degradation" cleanliness measurement record sheet
Product number
Big rubber market wide test
ac. 5 ur.
qCE-etiC-eO-aeCraagCBCNeca-TTKNrKk备
aas im
enjoy exhaustion,
Liu Duizhidian.
, the tester
the wind is measured and recorded
the tester's point is measured, the average is
the maximum wind rate
the minimum disgust, the reverse
the stirring egg
the loss,
relative operation case
Xinzhun Shengbai
Junbu number
Xie Dingyan number
fixed number
nine production levels
.FG/T 191999
Lai Oh City Real Vision Record Request Table
Band Hill Line
Zhen Ran Real Measurement Record Table
6 Illumination Real Thanks Table Record
Min Dingjing
TKAOSMIKAS
qCE-etiC-eO-aeCaagCEC-Nesa-TTrKNrKc x:
Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.