Some standard content:
Verification Regulation of Sulfur Dioxide Analyzer
JJG:5511988
Verification Regulation of Sulfur Dioxide Analyzer
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A JJG 551---19BR
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This standard is approved by the National Metrology Bureau on March 22, 1988, and will be implemented on February 1, 1989. Responsible unit: Shangyou City Standard Metrology Bureau Drafting unit: Shangyou City Testing Technology Institute This standard is issued by the technical staff of the company responsible for the interpretation
This standard is drafted by: Zhu Qiqu, (Shanghai Testing Technology Research Institute) 149F
Technical requirements
Three verification items
(·) Verification equipment
(I) Standard environment
Four verification items and verification methods
Eight verification result processing and verification deadline
Thank you 1.10 ... 5—record only, 4—electricity, (cut-off electricity system: 2—electricity technical requirements
This measurement range (—can be divided into four gears: 0-.5: 0-1.0. (-3.0, 0.-4.0 () range of the amount of indication error
individual two + 2%.
concentrated water conditions lead to its error
each crotch range is not greater than.5.
each range is not greater than 2%:
avoidance time
gear is not greater than 4 (to this maximum effect time is called 6 stability
6.1 learning point drift is less than ±2% of the full value 24: (.2 span source shift is not greater than ±3% of the full value/8hr due to noise, shock
is not greater than 2% of the full value
Anti-interference performance
The instrument is resistant to 75mg "t: General load: 1.02rg/r (n): nitrogen oxide: [.43 yuan (t) "oxidation gas resistance standard number U%, 1500
Insulation resistance
The distance between the power supply lead of the instrument and the casing should not be more than 20M11 Test circuit
Generally, the power supply line of the instrument and the casing can withstand a sinusoidal high current, and the penetration time does not exceed 1:9. The insulation requirements of the instrument are met by the manufacturer in accordance with the People's Republic of China National Standard 1-73-845 "Measurement of Dangerous Electricity" Article 1 to ensure that, if necessary, it will be drawn out by the department. 11 Foreign regulations
11.1 The instrument shall indicate the manufacturer name, model and instrument output! No.: 11.2 For newly manufactured instruments, the coating should be bright and shiny. For corrosion, there should be no obvious signs of rust, cracking and blistering on the surface of the instrument. The fixings should be intact. 11.3 For instruments that have been repaired during use, any external defects should not affect the normal operation of the instrument. III. Verification conditions
(I) Verification equipment
12 When the instrument is being tested, only the following equipment should be tested
200ml of rate electricity (indication error 10.5%] one. 12.1
electric stopwatch U.(2 (1h) delivery, test type J9-1: 12.2
electric transformer [kW0.2 level - unit, reference model 614-A type, 12.3
constant tear device 2510.1 seven percent 30=0.1℃ set (also includes 0~50℃, 1/0 point waste - standard mercury temperature 12.4|| The equipment includes an AC withstand voltage test bench (level 1), a zero test monitor MYⅡ·A type: a megohmmeter (5U0V1 level), an electric dynamic energy recorder (0-1V0. level), a sulfur dioxide standard gas permeation tube, the permeation rate is: 0.1, 0.2, 0.4: 0.8, 0.9, 1.8 (/m) and a nitrogen dioxide standard gas permeation tube: the permeability reduction rate is: 0. 3, 0.5 (ug/min) two, 12.1 standard hydrogen sulfide for your avoidance, its port is (.2, 0.4 (mi) two: Note: the menstrual home should be reported to the administrative department of labor, the film is not sold with the standard: the flow rate is better than ± 1%, the hydrogen sulfide is better than 1 = 2%.
(ii) calibration environment conditions
13 ambient temperature 20-30 ℃ (according to the use of temperature and 14 Relative severity is not more than 85%.
15 North tide
AC 220+22V:
Preset frequency 50_U.5Hz,
Four verification items and verification methods
16 Flow meter error verification
16. Connect the gas line of the instrument, connect the 200m1 flow meter to the air inlet of the instrument, and use the source of the technology to open a 1-piece horizontal measuring section. The indication reaches the current standard (according to the current standard) 1R
16.2 Use the soap flow meter and the dream meter to determine the flow of the inlet gas! Measure it three times in a row. Calculate the standard value based on the obtained volume (1) and time (), and take the average of the three times as the standard value. 1.3 Flow plate indication error, calculation formula (1): dg indication over-standard value × 100%
Standard value
Should meet the requirements of the second teaching of this regulation,||t t||17 The concentration evaluation of the instrument refers to the error verification 1, select a point (about % of the concentration) in each range, put the corresponding concentration of the chemical standard gas into the constant temperature device at 2510.1: (301.1) and keep it constant for 24h17.2. After the instrument is turned on for 30m, start the recorder, wait until the instrument zero gas line is stable, introduce the monoxide standard gas, wait until the recorder record curve is stable, cut off the sulfur dioxide gas, enter the seasonal gas, and record the sulfur dioxide dynamic The standard gas concentration and the oxide concentration value measured by the instrument are adjusted according to the gas concentration. The reading is changed and repeated measurements are performed. The maximum measured value is C
Note: In each measurement, the abnormal high temperature will only occur once at most. The value indicated by the proposed formula (2) is divided by 17.3 with the probability of % and calculated according to the following formula: r
m
The value encountered during the test should be within the range of 4. The standard requirement of Article 3 should be met. The repeatability test is performed using the standard error of 5, which is expressed as
. The test method is the same as 1? Article, use the values of 7 measurements to calculate by formula (3): S%
; a,
each modified measurement coverage value:
is the average value of the measurement;
the value of the ohm:
S. It should meet the requirements of Article & of this regulation.
Eta, -ay
×100%
Response time inspection and calibration method are the same as Article 17. On the line of each measuring cover on the recording paper: from the multi-level rising point A and the peak height point, the measuring base point B is the product of the distance d (if dropped 2) between the center of the gas test point and point A. The minimum and maximum values of the distance height are (mm), and the response time of the instrument is calculated according to formula (4) according to the set recording paper speed zram/tnin) (calibrated with a stopwatch):
Figure 2 Response time diagram
20.1 Empty point displacement
wire (mia)
t shall comply with the requirements of Article 1 of this Regulation.
Stability setting
Connect the instrument to the power supply, set the program switch (.5ng/T position). Set the one-way valve to the "zero gas" position. After preheating for 3 minutes, adjust the "adjustment" to avoid the signal, adjust the meter reading to .05nm, and after stabilization for 30m, use the average value of the reading at this time as the base value, and record it continuously for 24h. Measure the maximum increase C of the zero gas level deviation from the base after 24h. (grid! And record the full scale value (100) on the recorder. (grid) The quoted zero drift of the control formula (5) is enough, and the calculation of the control formula (5) is:
The center value meets the requirements of Article 6 of this regulation.
20.2 Span drift
ACo×10%
≥7.=100
Connect and disconnect the instrument, set the basic range X to 0.5mgm, set the first valve to the "zero gas" position, preheat 3umi, and then set the first valve to the "span" position. The flow rate is 0.350.05tmr-chemical sparse standard gas, after 3n stabilization, take the reading at this time as the reference value, connect the test gas 81: measure the curve deviation penalty blue also cautious maximum drift (grid), and the maximum amount (grid: and record the full degree signal (10) road) ratio of the report as the span drift blanket, child style (calculation:
should comply with the requirements of this regulation 6.
Note: The standard gas for oxidation is the same as Article 17. 21 Noise inspection
Use 20.1 Record the curve internally and measure the maximum amplitude of the peak jitter of the curve (except for the impact of external interference), with the unit of the recording paper grid. The relative quantity of the ratio of (grid) to the full range (100%) is the instrument's virtual market N, N should meet the requirements of this program.
1: External interference is caused by external factors and the peak value is generated. The ratio should be judged by the monitoring line. 2: If it fails, it is not an accidental interference.
22 Anti-distortion performance verification
Anti-interference performance measures In the presence of disturbing gases such as NO2 and HS, the color of the measured value is improved. The anti-interference performance is defined as:
C,-×100%
Wu: (a) The measured value in the presence of disturbing gases (m2/m) The measured value of standard gas
22.1 Turn on the instrument and output 30hm, set the range to 2./m, and read the three-way measurement at the "measurement" position. The concentration is 1.43mg/m (0r) SO standard gas, Get a stable reading, accept the measurement value of S: standard gas, 22.2 in SO standard gas, standard N2 [micro.02mgm-2 [0T)] or H, 5 according to 0.75mg/r (0t:)) + resistance gas, after getting a stable reading, record the disturbance gas when other measurements, according to the formula (?) screen resistance + resistance tube S, 5 should meet the requirements of this standard, 23 insulation resistance verification
without power, use 500V megameter although The insulation resistance between the power lead and the external device shall meet the requirements of Article 9 of this regulation.
24: Voltage test verification
Under the condition of no reverse current, an AC withstand voltage test agent is used to apply a small positive voltage between the power lead and the external device, which rises to 15mV and maintains 1500Vlmm, then decreases gradually. This item meets the requirements of Article 10 of this regulation.
25: This test item The instrument shall be tested and carried out on a daily basis. The appearance of the instrument shall meet the requirements of this procedure. V. Verification Result Processing and Verification Period
26 If the instrument meets the specified specifications, a verification certificate will be issued. If it does not meet the specifications, a verification result will be issued. If it does not meet the specifications, a verification result will be issued. If it does not meet the specifications, a verification result will be issued.
27 The verification period of the instrument shall not exceed one year. The contents on the back of the verification certificate and the verification result notice shall be shown in the test report. t||Legal leakage is not a temporary company
Use limited production
Blanket fixed area
(%)
Key points wave body[% two must be 2
Reduce medical source more[value Rh)
Bar paint electricity
Bei nature identificationbzxZ.net
Delivery unit
Instrument type +
Calibration environment conditions: Wencheng
Calibrator is
Calibration period H
Appendix 2 Calibration record format Type
External & learning
Function dynamic resistance (M)
Quantity level
Through the car min
Change price
Gas to the store
According to the people's display position
Study and use equipment
Lu quality production
Fund (book reference)
Course (sng/n>
's Lian Pu net delivery production r
Record permanent account Lian Qing raai.）
7 The maximum measurement position (uu-I:
Seat time (min)
Table 2 shows the error and the multiplicity test record nl.s
Response time and test record
Wife language standard test record
Starting point (, please measure the parts within 24
Still the degree of the course is more than %.
. - +.
According to the degree grid
Test times
Measurement position, squeeze
Table 5 Test record of anti-drying performance
Fifty interfering gases
This type (special) test general effect L
Table 6 Test record of thin volume indication error
Information in)
Cargo package 460
Appendix 3
Long energy 5 ()
Flow rate estimation
(: mnin?
The use of submersible remote control tube
Flow rate small rotation depth
Standard gas penetration tube is an ideal standard gas enzyme, which can be used to test and calibrate related analytical variables, calibrate the optical properties of the span extension method and be used for monitoring data in environmental monitoring. The transparent tube is made of three parts: the liquid gas in the transparent bottle, the polyolefin (or polyolefin) and the anion bottle. The two phases coexist in the anion bottle. The gas phase continuously seeps out through the cap. Under the humid conditions of the room, the permeability is proportional to the permeability or time, and the filtration rate is a constant. The stable permeability tube has a relatively high temperature coefficient (about 1%). Therefore, the use temperature of the permeability tube must be kept consistent with the temperature at the time of calibration. It is required to be fixed with an error within 0.1℃. The temperature measurement should be verified by the metrology department, with a value less than 0.05℃~50℃, a second-class standard mercury thermometer with a 1/10 scale or other accurate measuring means to ensure the accurate measurement of the permeability. The tube placed in the room needs to be stable for 24 hours before use. The chlorine dioxide and chlorine dioxide permeation tubes are placed in a desiccator with silica gel and sodium hydride particles to avoid the influence of air on the permeability. At the same time, it should also prevent the pollution of the surface. The chlorine dioxide permeation tube is stored in a closed container with concentrated silica gel and sodium hydride particles, hydrogen (static) as a protective gas, and B light to prevent moisture, pollution, oxidation and decomposition by light source. Use standard gas permeation tubes to prepare the required standard gas concentration according to the following formula. C4
In the formula: -
standard gas concentration (mg/m);
permeability (rg/mirh);
lower dilute gas flow rate (1i);
When preparing the standard gas, the released gas should be dried.)) Gas resistance, after getting a stable reading, record the disturbance gas when there is other measurements, according to the formula (? ) Screen resistance tube S, 5 should meet the requirements of this specification, 23 Insulation resistance verification
When the device is not powered on, use a 500V megameter to measure the insulation resistance between the power lead and the external device. The test result shall meet the requirements of Article 9 of this specification,
24: Voltage test verification
When the device is not powered on, use an AC withstand voltage test agent to apply a small reverse voltage between the power lead and the external device, first rise to 15mV, hold 1500Vlmm, and then gradually decrease. This test shall meet the requirements of Article 10 of this specification
25 External tax requirements
This verification is carried out with daily measurement and dynamic measurement, the performance of the device shall meet the requirements of Article 9 of this specification. 5. Processing of inspection results and inspection cycle
26. If the instrument meets the requirements of the given specifications, a inspection certificate will be issued. If it does not meet the requirements, a inspection result will be issued. If it does not meet the requirements, it will be deemed unqualified.
27. The inspection period of the felling device shall not exceed one year. The inspection certificate and the back of the inspection result notice shall contain the contents of the inspection items and the test results. The inspection shall not be conducted in accordance with the regulations.
The inspection area shall be limited to 3000 square meters. (%)
Key points[% must be 2
Reduced medical source more[result is the value Rh)
Bar paint electric
Bei nature knowledge||tt ||Delivery unit
Instrument type+
Calibration environment conditions: Wencheng
Calibrator is
Calibration period
Appendix 2 Calibration record format
Foreign & learning requirements
Function dynamic resistance (M)
Measurement level
Through the car min
Change price
Gas to the store
According to the people's position
Study and use the equipment
Lu quality production
Fund (refer to the book)
Course (sng/n>
's Lianpu net delivery production r
Record the permanent account Lianqingraai.)
7 The maximum measurement position (uu-I:
Seat time (min)
Table 2 shows the error and the multiplicity test record nl.s
Response time and test record
Wife language standard test record
Starting point (, please measure the parts within 24
Still the degree of the course is more than %.
. - +.
According to the degree grid
Measurement number
Measurement position, squeeze
Table 5 Test record of kang drying resistance
Fifty disturbing gases
This type (special) test general effect L
Table 6 Test record of thin volume indication error
Information in)
Cargo package 460
Appendix 3
Long energy 5 ()
Flow estimate
(: mnin?
The use of the submersible remote tube is beneficial for the storage of gas. The standard gas permeation tube is an ideal standard gas enzyme and can be used to verify and calibrate relevant analytical variables, calibrate the optical properties of the span distribution method, and be used for monitoring data in environmental monitoring. The permeation tube is composed of three parts: a transparent bottle made of polyolefins (or olefins), a liquid gas in a transparent bottle, and an anion bottle. The two phases of gas flow coexist in the anion bottle. The gas phase continuously seeps out through the exchange cap. Under room humidity conditions, the permeation rate is proportional to the permeation time, and the filtration rate is a constant. The reason is that the permeation tube has a relatively large temperature coefficient (about 1%). Therefore, the use temperature of the permeation tube must be compared with the temperature at which the calibration rate is set when using it. The temperature should be kept consistent. The requirements are that the error is within 0.1℃. The temperature measurement should be verified by the metrology department, with a value less than 0.05℃, a second-class standard mercury thermometer with a scale of 1/10 or other accurate measuring means to ensure the accurate measurement of the permeability. The tube placed in the room needs to be stabilized for 24 hours before use. The chlorine dioxide and chlorine dioxide permeation tubes are placed in a desiccator with silica gel and sodium hydride particles to avoid the influence of the air on the permeability. At the same time, it should also prevent the pollution of the surface. The chlorine dioxide permeation tube is stored in a closed container with concentrated silica gel and sodium hydride particles, hydrogen (static) as a protective gas, and B light to prevent moisture, pollution, oxidation and decomposition by light source. The standard gas permeation tube is used to prepare the required standard gas concentration according to the following formula. C4
In the formula: -
standard gas concentration (mg/m);
permeability (rg/mirh);
lower dilute gas flow rate (1i);
When preparing the standard gas, the released gas should be dried.)) Gas resistance, after getting a stable reading, record the disturbance gas when there is other measurements, according to the formula (? ) Screen resistance tube S, 5 should meet the requirements of this specification, 23 Insulation resistance verification
When the device is not powered on, use a 500V megameter to measure the insulation resistance between the power lead and the external device. The test result shall meet the requirements of Article 9 of this specification,
24: Voltage test verification
When the device is not powered on, use an AC withstand voltage test agent to apply a small reverse voltage between the power lead and the external device, first rise to 15mV, hold 1500Vlmm, and then gradually decrease. This test shall meet the requirements of Article 10 of this specification
25 External tax requirements
This verification is carried out with daily measurement and dynamic measurement, the performance of the device shall meet the requirements of Article 9 of this specification. 5. Processing of inspection results and inspection cycle
26. If the instrument meets the requirements of the given specifications, a inspection certificate will be issued. If it does not meet the requirements, a inspection result will be issued. If it does not meet the requirements, it will be deemed unqualified.
27. The inspection period of the felling device shall not exceed one year. The inspection certificate and the back of the inspection result notice shall contain the contents of the inspection items and the test results. The inspection shall not be conducted in accordance with the regulations.
The inspection area shall be limited to 3000 square meters. (%)
Key points[% must be 2
Reduced medical source more[result is the value Rh)
Bar paint electric
Bei nature knowledge||tt ||Delivery unit
Instrument type+
Calibration environment conditions: Wencheng
Calibrator is
Calibration period
Appendix 2 Calibration record format
Foreign & learning requirements
Function dynamic resistance (M)
Measurement level
Through the car min
Change price
Gas to the store
According to the people's position
Study and use the equipment
Lu quality production
Fund (refer to the book)
Course (sng/n>
's Lianpu net delivery production r
Record the permanent account Lianqingraai.)
7 The maximum measurement position (uu-I:
Seat time (min)
Table 2 shows the error and the multiplicity test record nl.s
Response time and test record
Wife language standard test record
Starting point (, please measure the parts within 24
Still the degree of the course is more than %.
. - +.
According to the degree grid
Measurement number
Measurement position, squeeze
Table 5 Test record of kang drying resistance
Fifty disturbing gases
This type (special) test general effect L
Table 6 Test record of thin volume indication error
Information in)
Cargo package 460
Appendix 3
Long energy 5 ()
Flow estimate
(: mnin?
The use of the submersible remote tube is beneficial for the storage of gas. The standard gas permeation tube is an ideal standard gas enzyme and can be used to verify and calibrate relevant analytical variables, calibrate the optical properties of the span distribution method, and be used for monitoring data in environmental monitoring. The permeation tube is composed of three parts: a transparent bottle made of polyolefins (or olefins), a liquid gas in a transparent bottle, and an anion bottle. The two phases of gas flow coexist in the anion bottle. The gas phase continuously seeps out through the exchange cap. Under room humidity conditions, the permeation rate is proportional to the permeation time, and the filtration rate is a constant. The reason is that the permeation tube has a relatively large temperature coefficient (about 1%). Therefore, the use temperature of the permeation tube must be compared with the temperature at which the calibration rate is set when using it. The temperature should be kept consistent. The requirements are that the error is within 0.1℃. The temperature measurement should be verified by the metrology department, with a value less than 0.05℃, a second-class standard mercury thermometer with a scale of 1/10 or other accurate measuring means to ensure the accurate measurement of the permeability. The tube placed in the room needs to be stabilized for 24 hours before use. The chlorine dioxide and chlorine dioxide permeation tubes are placed in a desiccator with silica gel and sodium hydride particles to avoid the influence of the air on the permeability. At the same time, it should also prevent the pollution of the surface. The chlorine dioxide permeation tube is stored in a closed container with concentrated silica gel and sodium hydride particles, hydrogen (static) as a protective gas, and B light to prevent moisture, pollution, oxidation and decomposition by light source. The standard gas permeation tube is used to prepare the required standard gas concentration according to the following formula. C4
In the formula: -
standard gas concentration (mg/m);
permeability (rg/mirh);
lower dilute gas flow rate (1i);
When preparing the standard gas, the released gas should be dried.
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