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Basic data
| Standard ID | GB/T 21254-2017 (GB/T21254-2017) |
| Description (Translated English) | Breath alcohol analyzer |
| Sector / Industry | National Standard (Recommended) |
| Classification of Chinese Standard | N50 |
| Classification of International Standard | 17.040.30 |
| Word Count Estimation | 26,224 |
| Date of Issue | 2017-12-29 |
| Date of Implementation | 2018-07-01 |
| Older Standard (superseded by this standard) | GB/T 21254-2007 |
| Regulation (derived from) | National Standard Announcement 2017 No. 32 |
| Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China |
GB/T 21254-2017: Breath alcohol analyzer
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Breath alcohol analyzer
ICS 17.040.30
N50
National Standards of People's Republic of China
Replace GB/T 21254-2007
Exhaled gas alcohol content detector
Released on.2017-12-29
2018-07-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
China National Standardization Administration issued
Content
Foreword III
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 Technical requirements 2
5 Test method 6
6 Inspection rules 16
7 Marking, packaging, transport and storage 19
Reference 21
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard replaces GB/T 21254-2007 "Exhaled gas alcohol content detector", compared with GB/T 21254-2007 main technology
The changes are as follows.
--- Revised the term "exhaled gas alcohol content detector" (see 3.1, 3.1 of the.2007 edition);
--- Removed the term "deep lung gas" (see 3.4 of.2007 edition);
--- Revised the term "memory residual effect" (see 3.4, 3.5 of.2007);
--- Added the term "measurement mode" (see 3.6);
--- Added the term "maintenance mode" (see 3.7);
--- Added the term "standby mode" (see 3.8);
--- Increased the term "exhaled gas volume effect" (see 3.9);
--- Increased the term "exhalation duration effect" (see 3.10);
--- Added the term "warm-up time" (see 3.11);
---Modified "general requirements" (see 4.1,.2007 version 4.1);
--- Removed "Functional Requirements" and "Passive Test Function" (see 4.2, 4.2.2 of.2007 edition);
--- Modified "continuous measurement" (see 4.3, version 4.2.3 of.2007);
--- Added "warm up time" (see 4.5);
--- Modified "Storage, Printing and Transmission of Measurement Results" (see 4.6, 4.5 of.2007);
--- Modified the "maximum allowable error" (see 4.7, 4.6 of the.2007 edition);
--- Modified "repetition" (see 4.8,.2007 version 4.7);
--- Modified "drift" (see 4.9,.2007 version 4.8);
--- Modified the "memory residual effect" (see 4.10, 4.9 of the.2007 edition);
---Modified "re-zero" (see 4.11,.2007 version 4.10);
--- Modified the "measurement range" (see 4.12, 4.11 of the.2007 edition);
--- Modified "resolution" (see 4.13, version 4.12 of.2007);
--- Modified "display" (see 4.14, version 4.13 of.2007);
--- Added "anti-tampering", "minimum expiratory volume", "shortest expiratory time", "exhalation interruption", "exhalation resistance", "exhaled gas volume effect"
“Exhalation duration effect” (see 4.15, 4.16, 4.17, 4.18, 4.19, 4.20, 4.21);
--- Modified "anti-interference ability" (see 4.22, 4.16 of.2007 edition);
--- Modified "Benchmark Conditions" (see 5.1, 5.1 of the.2007 edition);
--- Added "concentration conversion" (see 5.2);
--- Revised the "General Requirements Check" (see 5.3, 5.2 of the.2007 edition);
--- Modified the "continuous measurement test" (see 5.5, 5.3.3 of the.2007 edition);
--- Modified the "drift test" (see 5.11, 5.9 of the.2007 edition);
--- Modified the "memory residual effect test" (see 5.12,.2007 version of 5.10);
--- Modified the "re-zero test" (see 5.13, 5.11 of the.2007 edition);
--- Modified the "measurement range test" (see 5.14, 5.12 of the.2007 edition);
--- Modified the "resolution check" (see 5.15, 5.13 of the.2007 edition);
--- Modified "display check" (see 5.16, version 5.14 of.2007);
--- Added "word height", "unit height" and "last position" (see 5.16.1, 5.16.2, 5.16.3);
--- Added "anti-tampering" (see 5.17);
--- Modified the "Minimum Expiratory Volume Test" (see 5.18, 5.15 of the.2007 edition);
--- Added "shortest expiratory time test" (see 5.19);
--- Added "exhalation interruption test" (see 5.20);
--- Removed the "expiratory pressure and flow rate test" (see 5.16 of the.2007 edition);
--- Added "exhalation resistance test" "exhaled gas volume effect test" "exhalation duration effect test" (see 5.21, 5.22)
5.23);
--- Modified the "Temperature Resistance Test" (see 5.26, 5.19 of the.2007 edition);
--- Modified the "humidity resistance test" (see 5.27, 5.20 of the.2007 edition);
--- Modified the "vibration test" (see 5.28, 5.21 of the.2007 edition);
--- Modified the "collision test" (see 5.29, 5.22 of the.2007 edition);
--- Modified the "free fall test" (see 5.30, 5.23 of the.2007 edition);
--- Modified the "electrostatic discharge immunity test" (see 5.31, 5.24 version of.2007);
--- Revised the "type inspection" (see 6.1.1, 6.1.1 of the.2007 edition);
--- Modified the "test project" (see 6.4, 6.4 of the.2007 edition);
--- Revised the "storage period" (see 7.4.4, 7.4.4 of the.2007 version).
This standard is proposed and managed by the Ministry of Public Security of the People's Republic of China.
This standard is drafted by. Ministry of Public Security Traffic Management Science Research Institute.
Participated in the drafting of this standard. National Road Traffic Safety Product Quality Supervision and Inspection Center, China Institute of Metrology, Jiasidko
Technology (Shenzhen) Co., Ltd., Shenzhen Dadi Technology Development Co., Ltd., Shenzhen Weir Electric Co., Ltd.
The main drafters of this standard. Yu Chunjun, Lu Liqiang, Lu Yu, Zhao Dong, Dong Kui, Liu Yuling, Pan Weijiang, Li Renwang, Chen Yong, Sun Xiuping.
The previous versions of the standards replaced by this standard are.
---GB/T 21254-2007.
Exhaled gas alcohol content detector
1 Scope
This standard specifies the technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of the exhaled gas alcohol content detector.
Claim.
This standard is applicable to the production and inspection of the exhaled gas alcohol content detector for evidence collection.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article.
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 191 packaging storage and transportation icon
GB/T 2423.1 Environmental testing of electrical and electronic products - Part 2. Test methods Test A. Low temperature
GB/T 2423.2 Environmental testing of electric and electronic products - Part 2. Test method Test B. High temperature
GB/T 2423.3 Environmental testing - Part 2. Test method test Cab. constant damp heat test
GB/T 2423.10 Environmental testing of electric and electronic products - Part 2. Test method test Fc. Vibration (sinusoidal)
GB/T 2423.56 Environmental testing of electric and electronic products - Part 2. Test method test Fh. Wideband random vibration (digital control
System and guidelines
GB/T 6587-2012 General specification for electronic measuring instruments
GB/T 17626.2-2006 Electromagnetic compatibility test and measurement technology Electrostatic discharge immunity test
GB/T 17626.3-2016 Electromagnetic compatibility test and measurement technology RF electromagnetic field radiation immunity test
GA40 Road Traffic Accident File
3 Terms and definitions
The following terms and definitions apply to this document.
3.1
A device for measuring the ethanol content of exhaled deep lung gases under specified temperature, humidity and atmospheric pressure conditions.
3.2
Exhaled gas alcohol content breathalcoholconcentration;BrAC
The amount of ethanol per liter of exhaled gas.
Note. The unit is mg/L.
3.3
Blood alcohol content bloodalcoholconcentration
The amount of ethanol per 100 ml of blood is in mg/100 mL.
Note. Blood alcohol content is abbreviated as BAC.
3.4
Memory residual effect memoryresidualeffect
The exhaled gas alcohol content detector inserts a high concentration B between two tests of the same concentration of low concentration ethanol gas.
Alcohol gas test, the difference between the two low concentrations of ethanol gas measured.
3.5
Drift drift
The degree to which the exhaled gas alcohol content meter measures the value of a given concentration of ethanol gas over a period of time.
3.6
Measurement mode measuringmode
The mode of operation for normal measurements.
3.7
Maintenance mode maintenancemode
Work mode for instrument adjustment, calibration, and metrology verification.
3.8
Standby mode standbymode
The instrument is in a sleep state and can quickly switch to the operating mode of the measurement mode.
3.9
Exhalation gas volume effect influenceofthevolumeofexhaledair
The extent to which the volume of exhaled gas affects the measurement results.
3.10
Breath duration effect influenceofexhalationduration
The extent to which the duration of exhalation affects the measurement results.
3.11
Warm-up time warm-uptime
The time from the start of the power to the completion of the warm-up and the ability to enter the measurement state.
4 Technical requirements
4.1 General requirements
4.1.1 The surface of each component of the exhaled gas alcohol content detector (hereinafter referred to as “wine detector”) shall be smooth and flat, and there shall be no obvious mechanical damage.
Damage and coating damage, the display should be clear, no defect; each control should be installed firmly and flexible.
4.1.2 The instrument shall have measurement mode, maintenance mode and standby mode, and ensure the consistency of measurement results in the measurement mode and maintenance mode.
4.1.3 The display interface and operation menu of the wine detector should be Chinese, and the displayed value is non-negative.
4.1.4 The wine tester shall have the function of operator registration and registration.
4.1.5 In the measurement mode, the unit of measurement results of the wine tester is expressed in mg/100mL (blood alcohol content, ie BAC); in maintenance mode,
The measurement unit of the wine detector is expressed in mg/L (BrAC); the conversion relationship between BAC and BraC is BAC=BrAC×2200,
The conversion relationship should be indicated on the surface of the wine detector or on the product instruction manual.
4.1.6 The time displayed during measurement shall not deviate from Beijing time by more than ±3 min; the time of measurement shall be displayed, stored, transmitted and
Print should be exactly the same.
4.2 Voltage lower limit alarm
When the supply voltage is lower than the lower limit of the voltage specified by the wine detector, the wine detector should be able to issue an alarm signal.
4.3 Continuous measurement
A wine tester using a built-in power supply should be able to measure continuously for no less than.200 times.
4.4 Electrical safety
A wine detector powered by an AC power source shall meet the following requirements.
a) Insulation resistance. ≥10MΩ;
b) Dielectric strength. ≥1.5kV;
c) Leakage current. ≤0.7mA.
4.5 Warm-up time
For wine testers that require preheating, the warm-up time should not exceed 15 minutes under the benchmark conditions.
4.6 Measurement results storage, printing and transmission
4.6.1 The measurement result of the wine tester should be able to be stored and generate a unique sequence number corresponding to the wine tester. The storage space of the wine tester should be guaranteed.
Store at least 8000 measurement results, and the stored measurement results should not be artificially modified.
4.6.2 The wine tester shall be equipped with a printing device. The printed content shall include at least the sequence number, time and measurement results of the measurement, and the printed test results.
It should be consistent with the displayed measurement results, and reserve the location of the test object and the operator's signature; as the traffic accident file, the shelf life
Should meet the requirements of GA40.
4.6.3 The measurement results of the wine detector should be transmitted to the computer synchronously through the corresponding interface, and have the function of breakpoint retransmission.
4.7 Maximum allowable error
4.7.1 For type inspection, the maximum allowable error shall comply with the requirements of Table 1.
Table 1 Maximum allowable error
Ethanol gas concentration range C
Mg/L
Maximum allowable error
C ≤ 2.000 0mg/L ~ -0.040mg/L or 0 ~ -10%, taking the absolute value of the greater
C >2.000 0~-2×(standard gas concentration/2-0.9)mg/L
4.7.2 The allowable error of the wine tester during use is 1.5 times the maximum allowable error of the type test.
4.8 repeatability
The repeatability of the wine tester should meet the requirements of Table 2.
Table 2 Repeatability
Ethanol gas concentration range C
Mg/L
Repeatability
C≤2.000 0.007mg/L or 1.67%, whichever is the larger
C >2.000 0~0.33×(standard gas concentration/2-0.9)mg/L
4.9 drift
4.9.1 Within 4h of the wine detector, the zero drift should be no more than 0.010mg/L.
4.9.2 Within 4h of the wine detector, the short-term drift of the 0.400mg/L measuring point should be no more than 0.010mg/L.
4.9.3 Within 60 days, the long-term drift of the 0.400mg/L measuring point should be no more than 0.020mg/L.
4.10 Memory Residual Effect
Between the two tests of a given low concentration of ethanol gas, an injection of 0.400 mg/L of ethanol gas higher than the original concentration,
The difference between the two low-concentration gas measurements by the wine tester should be no more than 0.010 mg/L.
4.11 Zero
4.11.1 The wine detector should have an automatic zero reset function or check for zero before each measurement.
4.11.2 When the wine detector is reset to zero, in the measurement mode, when the residual concentration has not dropped to 0.01mg/L, it should not be tested; in maintenance mode
Under the test, when the residual concentration has not dropped to 0.005mg/L, it should not be tested.
4.11.3 The wine detector shall have a zeroing time of less than or equal to 10 s at an ethanol gas concentration of 0.400 mg/L.
4.12 Measuring range
The measurement range of exhaled gas wine test concentration should be 0.000mg/L~2.000mg/L.
4.13 Resolution
The wine detector has a resolution of 1 mg/100 mL in the measurement mode and a resolution of 0.001 mg/L in the maintenance mode.
4.14 display
4.14.1 Word height
The height of the measured value displayed on the display device should be no less than 5mm.
4.14.2 unit height
The character height of the measurement result unit should be no less than 3mm.
4.14.3 The last bit is gone
In the measurement mode, the calculated result should be rounded off.
4.14.4 Zero value display
In the measurement mode, when the measured concentration value is less than 0.020mg/L, it can be displayed as 0mg/100mL; in maintenance mode,
When the concentration is less than 0.020mg/L, it can not be displayed as 0.000mg/L, and the measurement result should be displayed as it is.
4.15 Tamper Protection
4.15.1 Hardware Protection
The wine detector has a measuring performance hardware adjustment device, which should have protective measures and cannot be opened without authorization.
4.15.2 Software Tamper Protection
The wine detector has a measurement performance software adjustment function, and should have password protection measures, which cannot be adjusted without authorization.
4.16 minimum expiratory volume
The minimum expiratory volume when sampling the wine detector is 1.2L. When the expiratory volume is less than 1.2L, the wine detector should not be sampled or analyzed.
4.17 Minimum exhalation time
The minimum exhalation duration for sampling by the wine tester is 3.0 s. When the duration of exhalation is less than 3.0s, the wine detector should not be sampled.
analysis.
4.18 Exhalation interruption
When the expiratory flow is less than 0.10L/s, it should be regarded as an exhalation interruption and an alarm signal will be issued.
4.19 Expiratory resistance
The wine tester uses a blowpipe with a suitable diameter. When the exhalation flow rate is 0.20 L/s, the air pressure should not exceed 25 hPa.
4.20 Exhaled gas volume effect
When the exhaled gas volume changes within the specified range, the measurement error of the wine tester to the measured gas should meet the requirements of 4.7.
4.21 Exhalation duration effect
When the duration of exhalation changes within the specified range, the measurement error of the wine detector to the measured gas should meet the requirements of 4.7.
4.22 Anti-interference ability
4.22.1 Under the action of 0.5mg/L acetone and 0.2mg/L carbon monoxide, the indication value of the wine tester should be no more than
0.1 mg/L.
4.22.2 For the infrared wine detector, test with 0.400mg/L ethanol gas with a carbon dioxide volume concentration of 10%.
The measurement error of the measured gas should meet the requirements of 4.7.
4.23 Blowpipe
The wine detector should use a disposable blowpipe that meets hygienic conditions. The blowpipe should be packaged separately. The blowpipe should be replaced before each measurement; the wine tester should be used.
Use a one-way blowpipe to ensure that the tester does not inhale the residue in the measurement system.
4.24 Temperature resistance
4.24.1 Low temperature work
When the wine detector is at 0 °C, it should work normally. The allowable error should meet the requirements of 4.7. The storage, printing and transmission of the measurement results should be consistent.
4.6 requirements.
4.24.2 Low temperature storage
The wine detector should be able to withstand the -40 ° C low temperature storage test. After the test, the wine tester should be free of rust, cracks, peeling of the coating, etc.;
Clear; no loose parts in the fastening parts; no blistering, cracking and deformation of plastic parts; after 2 hours of recovery under the benchmark conditions, test again
The test shall allow the error to meet the requirements of 4.7. The storage, printing and transmission of the measurement results shall comply with the requirements of 4.6.
4.24.3 High temperature work
The wine tester should work normally at 40 °C, and the allowable error should meet the requirements of 4.7. The measurement results should be stored, printed and transmitted.
Meet the requirements of 4.6.
4.24.4 High temperature storage
The wine tester should be able to withstand the 70 °C high temperature storage test. After the test, the wine tester should be free of rust, cracks, peeling of the coating, etc.;
Clear; the fastening parts are not loose; the plastic parts should be free of blistering, cracking and deformation; after 2 hours of recovery under the benchmark conditions, the test is carried out.
The allowable error shall comply with the requirements of 4.7, and the storage, printing and transmission of measurement results shall comply with the requirements of 4.6.
4.25 resistance to heat and humidity
The two-cycle alternating damp heat test shall be carried out according to the method of 5.27. After the test, the wine tester shall be free from rust, cracks, peeling of the coating layer, etc.;
The characters and signs should be clear; the fastening parts are not loose; the plastic parts should be free of blistering, cracking and deformation; recover 1h under the benchmark conditions
After that, the allowable error should meet the requirements of 4.7, and the storage, printing and transmission of measurement results should meet the requirements of 4.6.
4.26 Anti-vibration performance
The vibration test shall be carried out according to the method of 5.28. After the test, the mechanical components of the wine tester shall not have cracks, obvious deformation or loose fasteners.
The allowable error under the benchmark conditions shall comply with the requirements of 4.7. The storage, printing and transmission of the measurement results shall comply with the requirements of 4.6.
4.27 Anti-collision performance
The collision test shall be carried out according to the method of 5.29. After the test, the mechanical components of the wine detector shall be free of cracks and obviously deformed; the electrical components shall have no obvious position.
Move or fall off; the allowable error under the benchmark conditions should meet the requirements of 4.7, and the measurement results should be stored, printed and transmitted in accordance with 4.6.
Requirements.
4.28 Anti-free fall performance (handheld)
The packaged wine tester in a non-working state was subjected to a free fall test with a drop height of 800 mm.
There should be no large deformation and damage in the packing; the instrument and accessories should not be deformed or loosened; no mechanical damage such as peeling of the coating; in the benchmark test
The allowable error under the conditions shall comply with the requirements of 4.7, and the storage, printing and transmission of the measurement results shall comply with the requirements of 4.6.
4.29 Electrostatic discharge immunity
The wine detector performs the electrostatic discharge immunity test under the state of being turned on, and the electrostatic discharge immunity test level is 3, in the test and test.
The rear wine detector should not have an electrical fault and the function should return to normal after the test. The allowable error under the benchmark conditions should meet the requirements of 4.7.
Therefore, the storage, printing and transmission of measurement results should meet the requirements of 4.6.
4.30 Radio Frequency Electromagnetic Field Radiation Immunity
The wine detector performs radio frequency electromagnetic field radiation immunity test under the state of being turned on, and the radio frequency electromagnetic field radiation immunity test level is 3 levels.
There shall be no electrical faults in the wine tester during and after the test, and the function shall return to normal after the test. Allowable error under benchmark conditions
In accordance with the requirements of 4.7, the storage, printing and transmission of measurement results shall comply with the requirements of 4.6.
5 Test methods
5.1 Benchmark conditions
Unless otherwise stated, the tests were carried out under the following baseline conditions.
a) Temperature. 23 ° C ± 5 ° C;
b) Relative humidity. 50% ± 30%;
c) total hydrocarbon concentration in the environment. not more than 0.002 ‰;
d) Electromagnetic field. There are no gas or electromagnetic fields around the normal operation of the wine detector.
5.2 Concentration conversion
The test gas concentration is converted according to the formula (1) in terms of 34 ° C and current atmospheric pressure.
C1=kPC0 (1)
In the formula.
C1---The concentration of the test after conversion with standard ethanol gas, in milligrams per liter (mg/L);
C0---Ethanol standard substance concentration value, expressed in mole fraction, in micromoles per mole (μmol/mol or 10-6 mol/
Mol);
k --- constant, the value is 18.03×10-6;
P --- The current atmospheric pressure in the calibration environment, in kilopascals (kPa).
5.3 General requirements inspection
Visually inspect the appearance and operation interface of the wine tester.
5.4 Voltage lower limit over-the-counter alarm function test
Connect the wine detector power supply (rated voltage value), use the voltage regulator to gradually reduce the voltage, when the voltage drops to the lower limit of the rated voltage, check
Check if the wine detector has an alarm signal.
5.5 Continuous measurement test
Use a voltmeter to measure the voltage of the built-in power supply. When the power supply voltage is full voltage, use a zero-concentration gas and measure it once every 1 minute.
After.200 measurements, check that the wine tester is working properly.
5.6 Electrical safety test
5.6.1 Insulation resistance test
5.6.1.1 Pretreatment
The wine detector is not powered and the switch is placed in the on position.
5.6.1.2 Test method
Apply 500V DC test voltage between the power conductive circuit and the externally accessible conductive part of the power supply, and stabilize after 5s.
Insulation resistance.
5.6.2 Dielectric strength test
5.6.2.1 Pretreatment
Same as 5.6.1.1.
5.6.2.2 Test method
A test voltage of 1.5 kV is applied between the power conductive circuit and the housing and the externally accessible conductive portion. The test voltage waveform is
Sine wave. During the test, the test voltage should be gradually increased to the specified value, kept at the specified voltage for 1 min, and then smoothly dropped to zero.
5.6.3 Leakage current test
5.6.3.1 Pretreatment
Place the AC-powered wine tester on an insulated work surface. It is operated by an isolation transformer at 1.1 times the rated supply voltage.
Until the instrument temperature tends to balance.
5.6.3.2 Test method
Connect the power input of the wine tester to the AC output of the leakage current tester, the tester housing or the part to be tested and the leakage
The test terminals of the flow tester are connected. Turn on the leakage current tester and mea...
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