Some standard content:
ECS7.200.20
Machinery Industry Standard of the People's Republic of China
JB/T 94601999
Empty Box Barometer
Technical Conditions
Specifications far tie neroid harographs1999-08-06Released
State Bureau of Machinery Industry
Implementation on 2000-01-01
J/T9460—1999
This standard is a revision of the technical non-service part of ZJY161-83 Empty Box Barometer. During the revision, the technical requirements of the national standard CB/17-19 "Guidelines for Standardization Unit 1: Principles for the Drafting and Expression of Standards" Part: Basic Provisions for the Preparation of Standard Deviations were followed, and the original standard was revised, with the prefix added and the first part added! Chapter (standard) and main chapter (reference standard), the main technical content has not changed. This standard will be implemented from the date of implementation to the date of the 61-8 standard. Technical conditions for air-pressure basin barometers. This standard was proposed by the Changchun Meteorological Research Institute, and the responsible person for drafting this standard is Changchun Meteorological Instrument Factory. The main drafter of this standard is Hui Huaiying. This standard was first issued in January 1964 with the departmental standard number B475-61: It was revised for the first time in January 1963 and issued with the professional number Z161-83.
1 Standard
China Machinery Industry Standard
Empty Box Barometer
Technical Conditions
Specialized for the anerrid hazograple JB/T 9460—1999
Replacement 2B61—3
This standard specifies the technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of empty box barometers. This standard is applicable to empty box barometer products (hereinafter referred to as medical barometers). 2 Referenced standards
The following standards contain provisions that are incorporated into this standard by reference: At the time of publication of this standard, the referenced versions are all All standards are basic, and the parties using this standard should thoroughly discuss the possibility of establishing the following standards. GB/T8747-1988 Meteorological glass temperature meter B/T9379-1999 Instrument and instrument for transportation, transportation and basic environmental design and test methods R/T9452-1999 Meteorological receiver, mechanical type potassium machine with automatic clock 3 Technical requirements
3.: The bottom of the gas meter can be 870% of the atmospheric pressure F-1050hP. Normal operation in an environment with an air temperature of 10%-+40T. The device should be adjusted to 0
) After adjustment and testing, it is also used for S70tuPu-960hPu air pressure range 3.2 The main technical parameters of the barometer meet the following requirements, 3.2.1 Compare the barometer indication with the actual air pressure value (the air pressure measured by the double-tube mercury pressure gauge under the conditions of the car shall prevail): e) When adjusting the car , when the 1010Pa point difference is 0.0P: the difference between the two end points of 1010Pa and 1050Pa should not exceed ±1.5Pa, and the difference between the adjacent integral 101Pu scale points should not exceed =0.iPa; 5) When adjusting the test core, when the 920hTa point difference is D.0hP, the difference between the two end points of 70 and 960h should not exceed 1.5Pa, and the difference between the adjacent integral scale points should not exceed 10.Pa. 3.2.2 The temperature coefficient should not exceed ±0.13hPa/C. 3.3 The transmission system should be correctly recorded. When the gas changes, the pen should be able to move smoothly on the self-recording paper. The large step difference caused by the continuous change of the transmission system and the bed is on the self-recording paper: the diary barometer should not exceed 0.4hPa; the recording barometer should not exceed 0.7hPa.
3.4 The pen tip should be straight and smooth, with a firm grip and the pen tip should have proper pressure on the paper. The line should be smooth and not jumpy or broken. For pens, the line width should not exceed 0.3 mm. 3.5 The pen should be able to move horizontally at any position with the following limit values: the pen tip can be opened outward from the self-recording paper by not less than 6m, and the pen stop can be opened inside the pen holder by not less than 2m. 3.6 The teeth of the self-recording pen should be flexible to enable the pen tip to move horizontally in the self-recording range and stay in any position without loosening. 3.7 The central axis of the self-recording clock should be perpendicular to the board. When the tip moves within the range of the self-recording paper, it should coincide with the time mark or be parallel to the time mark. The maximum deviation should not exceed 1/3 (diary type) or 1/4 (weekly type) of the distance between two adjacent time marks. 3.8 When opening the outer cover of the barometer and removing the self-recording clock, the whole device shall not fall over. 3.9 The white seal used in the barometer shall comply with the provisions of B/T9452. 3.1. The installation of all parts of the barometer shall be correct and secure, and there shall be no looseness, deformation or other defects that affect the use. 3.11 The protective layer of all parts of the barometer shall be solid, evenly hooked and smooth, and there shall be no delamination, rust or other defects. 3.12 The instrument shall meet the requirements of JB/9329 under the conditions of transportation and packaging. 4 Test flow
4.13.2.1 Test method
4.1.1 Test equipment
] Air pressure box: The air pressure in the box should be able to remain constant, and the pressure change should not exceed 0.3hPa within 10min; one double-tube mercury pressure gauge; one barometer;
d) one magnifier (magnification 4-6 times). 4.1.2 Test requirements
) The test points are: 50hP, 9hPa, 1010hPa, 1030hP, 1050nPa, 1050hP, 1030hPe, 1010hPa, 990hP, 960Pu When the instrument is used for B70hPa=960mPa gas, the test points are 87ChPa, 9(XhPa, 920Pa, 940hPa, 960hPa, 960nPa, 940nPs, 920hPa, 900Pa, 870FPx
h Each test point shall be maintained for no less than 10min (diary type or 20min (weekly type): c) The rate of change of air pressure at each test point shall not be greater than 10hP per minute. d) The value of the consulting test point shall be based on the reading of the double-pressure water gingival pressure gauge, and its deviation shall not exceed ±1hPa: t! At any test point, the pressure trend must be kept constant; the reading of the double-tube mercury pressure gauge should be accurate to 0.05 proof a: the reading of the table should be accurate to 0.1℃. 4.1.3 test steps solution
a) Adjust the air pressure to below 960%Pa, then raise it to 96DhPa. to maintain the pressure trend, and then perform a pan, and tap the box to eliminate the pressure gauge sequence; when reducing the pressure, the air layer at the 10SChPa point should be higher than 10SCMPa, and then drop to 105HPae. Similarly, the test of the test point in the 870FA~960hPa section should also be carried out in reverse according to the corresponding procedure requirements of the corresponding point, ) After stabilization, first take the double mercury pressure gauge attached to the over-degree value, accurate to 0.1℃, and then read the pressure value, accurate to 0.0hPa; ) After reading, immediately adjust the gas and conduct the next test: ) When adjusting to the F-test point, the method steps are the same as b), ) item. 4.1.4 Recording and sorting
? Use a magnifying glass to read the indication on the self-recording paper, and the reading should be accurate to 0.1hPa; b! Calculate the reading of the double-tube mercury pressure gauge at each point, and after temperature, pressure and indication are calibrated, subtract the peak-corrected reading from the barometer indication reading once to obtain the required value
c) Subtract the difference between each test point from the difference between 10 and 10hPa points, and take the integral value of [010hPa point as 0.0hPa. In the range of 870hPa~960hPa, the value of each test point should be subtracted from the integral value of 920hPa point, and the difference at 920hPa point is 0, (HiPh. 4.23.2.2 Test method
4.2.1 Test equipment wwW.bzxz.Net
) One temperature box and one ice box, the temperature range is 25℃~30C; the temperature of the refrigerator is 0℃5%. The temperature in the box should be kept stable enough, and the humidity change should not exceed 2℃ within 3h. The air pressure in the box should be kept connected to the outside air pressure; h dry bulb thermometer changes, and should comply with GB/T8747 regulations;) A dynamic mercury barometer.
4.2.2 Test requirements
JBT9480-1999
) Test at 0:=+5℃+25℃=+30C; b) Each stabilization time should not be less than:
c) The change in atmospheric pressure during the test should not be greater than 3hP; dl The reading of the humidity meter is accurate to 0.1℃;
eL The reading of the dynamic mercury barometer is accurate to 0.05 bPa, and the reading of the temperature meter is accurate to 0. 1℃. 4.2.3 Test steps 2) Place the barometer and dry-bulb thermometer in the temperature chamber, and then perform the above test; remove the barometer from the temperature chamber to read the value indicated by the bulb, and tap the box to make a mark; after reading, wait for 24 hours, and perform the second reading according to the requirements of item b); d) After the point measurement, place the barometer in the temperature chamber, and adjust the temperature to a temperature within the range of +25℃-+30℃ and above 35℃; check the temperature in the temperature chamber. The test method and steps are the same as those in item b). 4.2.4 Record the entire measurement. ) Calculate the reading of the mercury barometer at each point, and subtract the value after temperature, gravity and instrument error correction from the value of the barometer at the same time to obtain the difference:
h) Record the number on the self-recording paper accurately to 0.1hPa:
) Calculate the average temperature of each high and low temperature point to obtain the average pressure difference; obtain the average value of the range of the two pressure differences and the difference; ) Divide the mercury difference by the area difference to obtain the integral value of the pressure difference. 4.3 Test method 3.3
Adjust the instrument to any point on the 1010hPa mark line, tap the instrument lightly, rotate the seed cylinder, make the pen tip horizontal, lift or press the pen rod upward or downward 10hPa~15hPa, and when the pen tip returns to normal, observe whether the difference between the pen tip and the micrometer meets the standard. Observe any point on the 1050hPa and 960hPa2 full mark lines in the same way. Similarly, the test method for the 870hPa~560h section shall be in accordance with the standard. 4.43.7 Test method
Adjust the pen to the 1050h mark, then adjust the pen to move along the time dial to see if the difference meets the requirements of this standard. 4.53.12 Test method shall be carried out in accordance with the method specified in JB/T9329. 4.63.43.6, 3.8~3.11 test methods shall be carried out in accordance with the conventional test method. 5.1 Each barometer shall be inspected by the manufacturer and only those that are confirmed to be qualified can be shipped out of the factory. A certificate of conformity shall be attached when leaving the factory. 5.2 Each barometer shall be tested for shipment in accordance with the requirements of 3.2.1a), 3.2.2.3.3~3.1I. 5.3 The barometer may be retested in the following cases: when there is doubt about the test results;
b) when the superior authority conducts inspection;
c) when the weekly production representative accepts the product.
5.4 The barometer shall still meet the requirements of this standard after retesting, and the difference between its indication error and temperature coefficient and the original test results shall meet the following permitted values:
) the indication error shall not exceed Thpa;
b) the temperature coefficient shall not exceed 0.05hPa/.
5.5 Barometers shall be tested according to the technical requirements specified in the standard under the following circumstances) when the design, process, and relevant materials are to be changed: 6) Infrequent production, when production is repeated, c) Regular inspection of batch-produced barometers; Similar products are compared and evaluated
JB/T9460—1999
5.6 Barometers produced in batches shall be tested for type every year. If one of the batches does not meet the requirements, it shall be repaired. If there is any failure, the batch shall be considered unqualified; if two of the three batches fail, the batch shall be considered unqualified. The items and number of the types of mis-accepted shall be determined according to the specific circumstances. 6 Marking, packaging, transportation and storage
6.1 Each barometer shall have a quality label in the appropriate position, and its contents shall include: (date) manufacturer name;
! Product name and model:
Product number:
dNumber on self-recording paper:
) Year and month of manufacture,
6.2 For gas gauges that are packed in inner packages, they should be supported by a pen, self-recording paper, etc. Necessary measures should be taken to prevent them from being damaged. Environment: 6.3 After the gauges can be packed in inner packaging boxes, they should be secured against the semi-backbone. The following information should be marked on the inner packaging boxes: a) Factory:
Product name and Model:
Year and month of manufacture:
"Upward\ and\+\
e.4 A complete set of barometers should include:
One heart of air pressure meter;
One bottle of slow water for recording:
One pen tip for monthly drop:
Self-recording paper: One diary or one weekly record:
One instruction manual:
One certificate of conformity.
6 .5 The outer packaging box should be firm, reliable, moisture-proof and waterproof; there should be drainage measures between the inner packaging box and the outer packaging box. 6.6 The outer packaging box should be marked with obvious, clear and reliable signs, which include: manufacturer's name; b) product name and number:
name and address of the consignee:
d) box size, or product and box number: e) mark "Do not place outside", "Always be affected by moisture", "Precision instrument, be careful" and other words and corresponding pattern marks; 6.7 Each box of barometer should have a packing list. 6. In areas where the atmospheric pressure is lower than 9hPa, the following measures should be taken for transportation and storage: 6.9 The barometer should be stored in a room with a humidity of -[0% to +40℃ and a relative humidity not exceeding 80%. No volatile substances should be placed indoors.3 After the meter is packed into the inner box, it should be firmly secured and the following information should be marked on the inner box: a) Factory:
Product name and model:
Year and month of manufacture:
"upward\ and\+\
e.4 A complete set of barometers should include:
One barometer;
One bottle of slow water for recording:
One pen tip for monthly drop:
Self-recording paper: One sheet of diary or weekly diary:
One instruction manual:
One certificate of conformity.
6.5 The outer box should be firm, reliable, and waterproof; there should be a space between the inner box and the outer box. The mother pin is not 5 original and 6 sets .6 Mark the outer packaging box with obvious, clear and reliable signs, including: manufacturer name; b) product name and serial number:
name and address of the consignee:
d) box dimensions, size, or product number: e) mark "Do not place outside", "Always be affected by moisture", "Precision instrument, be careful" and other words and corresponding graphic labels; 6.7 Each box of barometer should have a packing list. 6. For transportation and storage in areas with an atmospheric pressure below 9hPa, appropriate measures should be taken: 6.9 The barometer should be stored in a room with a humidity of -[0% to +40℃ and a relative humidity not exceeding 80%. No volatile substances should be placed indoors.3 After the meter is packed into the inner box, it should be firmly secured and the following information should be marked on the inner box: a) Factory:
Product name and model:
Year and month of manufacture:
"upward\ and\+\
e.4 A complete set of barometers should include:
One barometer;
One bottle of slow water for recording:
One pen tip for monthly drop:
Self-recording paper: One sheet of diary or weekly diary:
One instruction manual:
One certificate of conformity.
6.5 The outer box should be firm, reliable, and waterproof; there should be a space between the inner box and the outer box. The mother pin is not 5 original and 6 sets .6 Mark the outer packaging box with obvious, clear and reliable signs, including: manufacturer name; b) product name and serial number:
name and address of the consignee:
d) box dimensions, size, or product number: e) mark "Do not place outside", "Always be affected by moisture", "Precision instrument, be careful" and other words and corresponding graphic labels; 6.7 Each box of barometer should have a packing list. 6. For transportation and storage in areas with an atmospheric pressure below 9hPa, appropriate measures should be taken: 6.9 The barometer should be stored in a room with a humidity of -[0% to +40℃ and a relative humidity not exceeding 80%. No volatile substances should be placed indoors.
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