Good air quality is the premise of sustainable development of human society. With the rapid development of motor vehicle economy, the production and usage of motor vehicles have increased rapidly, and the pollution of motor vehicle exhaust to the environment is becoming more and more serious. It has become an important source of urban air pollution, causing serious harm to the environment and people's health. Accurate, stable and traceable reference material is a necessary prerequisite for the smooth progress of this work.

Most of the reference material meeting the requirements of exhaust gas monitoring and control standards are available, as listed below. Meanwhile other calibration gases can be customized as required by customers.

RM

Sepc.

Appliable   standard

RM Cert.No.

concentration

Relative  

Expanded

Uncertainty

Standard   NO.

RM of O2 in   N2

GBW(E)062593

5~30(10-2mol/mol)

1%(k=3)

GB    18285-2018 Limits and measurement methods for emissions from   gasoline vehicles under two-speed idle conditions and short driving mode   conditions

GB    18352.6-2016 Limits and measurement methods for emission from   light-duty vehicles

GB    17691-2018 Limits and measurement methods for emission from diesel   fuelled heavy-duty vehicles

RM of   CO,CO2,Proane,NO in N2

GBW(E)062002

NO 100~499(μmol/mol)

2%(k=2)

GB    18285-2018 Limits and measurement methods for emissions from   gasoline vehicles under two-speed idle conditions and short driving mode   conditions

propane 100~999(μmol/mol)

1.5%(k=2)

CO 0.5%~0.99%

CO2 0.1%~0.99%

NO 500~5000(μmol/mol)

1%(k=2)

Propane 1000~50000(μmol/mol)

CO 1%~10%

CO2 1%~15%

 RM of   NO, CO2 in N2

 BW(DT0128)    

NO 10~1×104(μmol/mol)

2%(k=2)

GB    17691-2018 Limits and measurement methods for emission from diesel   fuelled heavy-duty vehicles

CO2 10~20×104(μmol/mol)

RM of CO,   CO2,Propane in N2

 BW(DT0159)    

Propane10~5×104(μmol/mol)

2%(k=2)

GB    18285-2018 Limits and measurement methods for emissions from   gasoline vehicles under two-speed idle conditions and short driving mode   conditions

CO 10~20×104(μmol/mol)

CO2 10~20×104(μmol/mol)

RM of   CO,CO2, Propane,NO, NO2 in N2 

 BW(DT0128)    

NO 10~1×104(μmol/mol)

2%(k=2)

GB    18285-2018 Limits and measurement methods for emissions from   gasoline vehicles under two-speed idle conditions and short driving mode   conditions

propane 10~5×104(μmol/mol)

CO  10~20×104(μmol/mol)

CO2 10~20×104(μmol/mol)

NO2 10~1000(μmol/mol)

RM of H2 in   N2

GBW(E)062595

0.1~80(10-2mol/mol)

1%(k=2)

 GB    18352.6-2016 Limits and measurement methods for emission from   light-duty vehicles                    

RM of H2 in   He

GBW(E)062596

30~50(10-2mol/mol)

1%,(k=2

GB    18285-2018 Limits and measurement methods for emissions from   gasoline vehicles under two-speed idle conditions and short driving mode   conditions     

GB    18352.6-2016 Limits and measurement methods for emission from   light-duty vehicles

GB    17691-2018 Limits and measurement methods for emission from diesel   fuelled heavy-duty vehicles

RM of Propane   in Air

GBW    (E)062248

1~99.9(μmol/mol)    

2%(k=2)    

GB    18285-2018 Limits and measurement methods for emissions from   gasoline vehicles under two-speed idle conditions and short driving mode   conditions       

GB    18352.6-2016 Limits and measurement methods for emission from   light-duty vehicles

100~1×104(μmol/mol)

 1%(k=2)

GB    17691-2018 Limits and measurement methods for emission from diesel   fuelled heavy-duty vehicles

RM of CO in   N2

GBW    (E)062251

5~499(μmol/mol)    

2%(k=2)

GB    18285-2018 Limits and measurement methods for emissions from   gasoline vehicles under two-speed idle conditions and short driving mode   conditions        

GB    18352.6-2016 Limits and measurement methods for emission from   light-duty vehicles

500~5×104(μmol/mol)

1%(k=2)

GB    17691-2018 Limits and measurement methods for emission from diesel   fuelled heavy-duty vehicles

RM of NO in   N2

GBW(E)061529

10~1×103(μmol/mol)

2%(k=2)

GB    18285-2018 Limits and measurement methods for emissions from   gasoline vehicles under two-speed idle conditions and short driving mode   conditions     

GB    18352.6-2016 Limits and measurement methods for emission from   light-duty vehicles

GB    17691-2018 Limits and measurement methods for emission from diesel   fuelled heavy-duty vehicles 

RM of CO2   in N2

GBW(E)062587

2~499(μmol/mol)

2%(k=2)

GB    18285-2018 Limits and measurement methods for emissions from   gasoline vehicles under two-speed idle conditions and short driving mode   conditions                         

GB    18352.6-2016 Limits and measurement methods for emission from   light-duty vehicles

GBW(E)062588

5~1×104(μmol/mol)

1%(k=2)

GB    17691-2018 Limits and measurement methods for emission from diesel   fuelled heavy-duty vehicles 

RM of NO2   in N2

GBW(E)061528

10~1×103(μmol/mol)

2%(k=2)

GB    18352.6-2016 Limits and measurement methods for emission from   light-duty vehicles                       

GB    17691-2018 Limits and measurement methods for emission from diesel   fuelled heavy-duty vehicles

RM of CH4   in Air 

GBW(E)060678

1~4999(μmol/mol)    

2%(k=2)    

GB    18352.6-2016 Limits and measurement methods for emission from   light-duty vehicles                         

5000~3×104(μmol/mol)

1%(k=2)

GB    17691-2018 Limits and measurement methods for emission from diesel   fuelled heavy-duty vehicles

RM of ethane in Air

BW(DT0160)

>1.00(μmol/mol)   

2%(k=2)

GB  18352.6-2016 Limits   and measurement methods for emission from light-duty vehicles                       

GB    17691-2018 Limits and measurement methods for emission from diesel   fuelled heavy-duty vehicles

RM of N2O in N2

BW(DT0107)

>1.00(μmol/mol)   

2%(k=2)

GB    18352.6-2016 Limits and measurement methods for emission from   light-duty vehicles