Standard gas

The standard gas products provided by our company belong to the category of measuring instruments. They are approved by the state as national standard substances, listed in the national standard substance catalog, and have obtained the national "Measurement Instrument Manufacturing License". Their measurement values can be traced back to the national first-class standard substances.

One, Introduction
The standard gas products provided by our company belong to the category of measuring instruments. They are approved by the state as national standard substances, listed in the national standard substance catalog, and have obtained the national "Measurement Instrument Manufacturing License". Their measurement values can be traced back to the standard substances. Products: Standard gases for instrument calibration, environmental pollutant detection and exhaust emission detection, petrochemical industry, alarm calibration, medical instrument calibration, power system standard gases, air separation standard gases, traffic safety detection standard gases, geological exploration and earthquake monitoring standard gases, metallurgical analysis standard gases, gas tool experiment and calorific value analysis standard gases, fertilizer industry instrument calibration standard gases, covering instrument detection and calibration standard gases in environmental detection, medical and health, petrochemicals, fertilizers, electricity, mining, metallurgy, machinery manufacturing and other fields. Through the introduction of technology and equipment, other standard substances suitable for new technologies and processes are continuously developed. Covering industries such as petrochemicals and fertilizers, air separation, healthcare, environmental testing, electricity, mining, metallurgy, and mechanical equipment, gas standard substances are used for calibration.
1. Standard gases used in the petrochemical and petroleum industries

Representative products	purpose	Packaging medium
H2，02，N2，CO2，CH4，C2H6，C3H8，C3H6，i-C4Hl0，n-C4H10，i-C4H8，C5H12 And above components;	Petroleum reforming, hydrogenation, and natural gas testing	1-liter, 2-liter, 4-liter, and 8-liter aluminum alloy steel cylinders; 10 liter and 40 liter steel cylinders
H2，02，N2，CH4，C2H6，C3H8，C3H6，i-C4H10，n-C4H10，C4H8-1，i-C4H8，T-C4H8，C-C4H8，i-C5H12 及以上组分
CO2 70-100 ppm, C2H2 7-10 ppm, CO 1-100 ppm/C2H4	Cracking low-pressure polyethylene
CH4 400ppm, C2H6 400 ppm, C2H2 8 ppm/C2H4
H2, CH4, C2H6，C2H4，C3H8，i-C4H10，n-C4H10，n-C4H8，i-C4H8； t-C4H8，c-C4H8，i-C5H12，n-5H12，CO2，CO，H2S，C3H6，N2 平衡气体	Acrylic and vinyl chloride series
Benzene, toluene, p-xylene, m-xylene, o-xylene, propylbenzene, with component contents ranging from ppm to percentage
CH4, C2H6, C3H8, C4H10, C5H12 constant and trace binary or multicomponent mixed standard gases	Aromatic series;
A mixed standard gas of various alkanes, alkenes, alkynes, and aromatic hydrocarbons, with component contents ranging from ppm to percentage levels	For logging purposes

Standard liquids for carbon-4 and carbon-5 components, as well as standard liquids for aromatic hydrocarbons such as benzene, toluene, xylene, meta xylene, o-xylene, and toluene, can also be prepared, with component contents ranging from ppm to percentage.
2. Standard gases used in the fertilizer industry

Representative products	purpose	Packaging medium
CO 1~15% C02 20~30% CH4 0.5~1% N2 0.5~1%	Various instrument control standards	1-liter, 2-liter, 4-liter, and 8-liter aluminum alloy steel cylinders; 10 liter and 40 liter carbon steel cylinders
CO 1~15% C02 20~30%
Ar 1~5% CH4 1~20%
CO 10~30ppm C02 10~30ppm
CO 5~10% CH4 1~10% N2 2~10%
CH4 12~13% N2 18~19% Ar 5~6%
CO 1~5% CH4 1~5% H2 40~50% 02<0.2%
CO 1~15% C02 10~20% CH4 1~10% N2 1~10%

3. Standard gases for air separation industry

representative product	purpose	Packaging medium
02 1~100ppm	Analysis of Impurity Content in Air Separation Gas Products	1-liter, 2-liter, 4-liter, and 8-liter aluminum alloy steel cylinders; 10 liter and 40 liter carbon steel cylinders
N2 1~100ppm
CO 0.5~100ppm C02 0.5~100ppm CH4 0.5~100ppm
H2 1~100ppm

4. Standard gases for the power industry

Component names and concentration ranges	purpose	Packaging medium
CO 50~1000ppm H2 50~1000ppm C02 50~5000ppm CH4 100ppm~1% C2H4 30~500ppm C2H6 30~500ppm C2H2 30~500ppm N2 or Ar equilibrium gas	Transformer oil and gas measurement	1-liter, 2-liter, 4-liter, and 8-liter aluminum alloy steel cylinders; 10 liter and 40 liter carbon steel cylinders

5. Standard gases for medical and healthcare use

representative product	purpose	Packaging medium
CO2 5~10%/N2	Blood gas measurement	1-liter, 2-liter, 4-liter, and 8-liter aluminum alloy steel cylinders; 10 liter and 40 liter carbon steel cylinders
CO2 5% 02 10~20%/N2
He 9~13%/N2
N2 6~8%/02
CO2 5~10%/Air	Cerebral circulation
CO 0.2% He 10%/Air	Pulmonary diffusion
CO 100~900ppm 02 20%/N2
CO 0.2~0.3% He 10% 02 20%/N2
CO 0.2% N20 15% 02 20%/N2

6. Standard gases for environmental monitoring

representative product	purpose	Packaging medium
5-10000ppm S02 /N2	Atmospheric environment monitoring	0.7-liter, 1-liter, 2-liter, 4-liter, and 8-liter aluminum alloy steel cylinders; 10 liter and 40 liter carbon steel cylinders
Nitrogen oxide series: mainly including NO, NO2, The concentration range of components is from 5ppm to the percentage level
H2S series: 1-50 ppm, 50-2000 ppm, 2000 ppm - percentage level
Ammonia series: 1-50ppm, 50-2000ppm, 2000ppm - percentage level
CO 1-8 0.01-1%, C02 1-9%； Or CO 2.5-3%, C3H8 300-2500 ppm; Or CO ≤ 6%, C3H8 ≤ 3000 ppm (equilibrium gas is nitrogen)	Motor vehicle exhaust testing

7. Standard gas for calibration of alarm leak detector

representative product	purpose	Packaging medium
CH4/Air	Alarm calibration	1-liter, 2-liter, 4-liter, and 8-liter aluminum alloy steel cylinders; 10 liter and 40 liter carbon steel cylinders
i-C4H10/Air
C12/N2
H2S/N2

Note: The selection of bottom gas and balance gas can be adjusted appropriately according to the actual needs of customers and the compatibility between components.
The validity period of standard gases is generally one year. For standard gases containing corrosive components such as SO2, H2S, NO, NO2, CL2, NH3, PH3, etc., the validity period depends on the component content and is generally 3-6 months or more (based on stability test results). The packaging adopts high-pressure seamless gas cylinders of 4 liters, 8 liters, 40 liters, and other specifications; Materials: steel, aluminum alloy, and internally coated carbon steel; The steel cylinder valve for standard mixtures of corrosive and reactive gas components is a stainless steel valve.
According to user needs, provide trace (ppm) binary or multicomponent mixed standard gases such as ethanol, methanol, methyl mercaptan, ethyl mercaptan, benzene series, ethers or thioethers, hydrogen sulfide, carbonyl sulfide, sulfur dioxide, vinyl chloride, ethylene oxide, carbonyl chloride, etc.
According to user requirements, standard gases for gas chromatography analysis of natural gas components, methanol hydrogen production, residual ethylene oxide in medical product disinfection, and residual solvents in packaging materials can be provided.
Valves: including regulating valves and globe valves, suitable for high-purity gases, corrosive gases, as well as ordinary regulating valves. Valve types include imported valves and valves from designated manufacturers of the company.

2、 Standard gas
Approved by the state, * * * standard substances cover standard gases used for instrument calibration in environmental testing, medical and health, petrochemicals, fertilizers, electricity, mining, metallurgy, machinery, etc., and other standard substances suitable for new technologies and processes are continuously developed.
The packaging media are 0.7L, 2L, 4L, 8L, 10L, 40L aluminum alloy and carbon steel cylinders.
Standard gases for petrochemical industry
Petroleum reforming, hydrogenation, and natural gas testing
H2，O2，N2，CO2，CH4，C2H6，C3H8，C3H6，i-C4H10，n-C4H10，i-C4H8，C5H12 And above components;
H2，O2，N2，CH4，C2H6，C3H8，C3H6，i-C4H10，n-C4H10，C4H8-1，i-C4H8，T-C4H8，C-C4H8， i-C5H12 及以上组分；
Cracking low-pressure polyethylene
CO2 70 100 ppm，C2H2 7-10ppm，CO 1-100ppm/C2H4； CH4 400ppm，C2H6 400 ppm，C2H2 8 ppm/C2H4；
Acrylic and vinyl chloride series
H2，CH4，C2H6，C2H4，C3H8，i-C4H10，n-C4H10，n-C4H8，i-C4H8，t-C4H8，c-C4H8，i-C5H12，n-C5H12，CO2，CO，H2S，C3H6/N2；
Aromatic series
Benzene, toluene, p-xylene, m-xylene, o-xylene, propylbenzene, with component contents ranging from ppm to percentage
For logging purposes
CH4, C2H6, C3H8, C4H10, C5H12 constant and trace binary or multicomponent mixed standard gases
other
A mixed standard gas composed of various alkanes, alkenes, alkynes, and aromatic series, with component contents ranging from ppm to percentage
Standard gas for fertilizer industry
Ar 1-5% CH4 1-20%
CH4 12-13% N2 18-19% Ar 5-6%
CO 1-15% CO2 10-20% CH4 1-10% N2 1-10%
CO 1-15% CO2 20-30% CH4 0.5-1% N2 0.5-1%
CO 5-10% CH4 1-10% N2 2-10%
CO 1-5% CO2 20-30%
CO 1-5% CH4 1-5% H2 40-50% 02<0.2%
CO 10-30ppm CO2 10-30ppm
Standard gases for air separation industry
02 1-100ppm
N2 1-100ppm
CO 0.1-100ppm CO2 0.1-100ppm CH4 0.1-100ppm
Standard gases for the power industry
CO 300-500ppm H2 80-1000ppm CO2 500-1000ppm CH4 1000ppm-1% C2H4 30-500ppm C2H6 30-500ppm C2H2 30-500ppm
Standard gases for medical and healthcare use
Blood gas measurement
CO2 5-10%/N2
CO2 5% O2 10-20%/N2
He 9-13%/N2
N2 6-8%/O2
Pulmonary diffusion
CO 0.2% He 10%/Air
CO 100-900ppm O2 20%/N2
CO 0.2-0.3% He 10% O2 20%/N2
CO 0.2% N20 15% O2 20%/N2
other
CO2 5-10%/Air
N2O 5%，SF6 1% / O2
Standard gases for environmental monitoring
Atmospheric environment monitoring
Hydrogen sulfide series: 1-50 ppm, 50-2000 ppm, 2000ppm - percentage level, packaged in aluminum alloy gas cylinders.
Sulfur dioxide series: 1-50 ppm, 50-2000 ppm, 2000ppm - percentage level, packaged in aluminum alloy gas cylinders.
Ammonia series: 1-50 ppm, 50-2000 ppm, 2000ppm - percentage level, packaged in aluminum alloy gas cylinders.
Nitrogen oxide series: mainly including NO, NO2, with component concentrations ranging from 5ppm to the percentage level, packaged in aluminum alloy gas cylinders.
Carbonyl sulfide series: 1-50 ppm, 50-2000 ppm, 2000ppm - percentage level, packaged in aluminum alloy gas cylinders.
Chloride series: mainly including chlorine (Cl2), (HCl), carbonyl chloride (COCl2), etc., 5-50ppm, 50ppm-5%, packaged in aluminum alloy bottles and steel cylinders.
Automotive exhaust series:
CO 1-8%, C3H8 0.01-1%, CO2 1-9% /N2
CO 2.5-3%, C3H8 300-2500ppm /N2
CO =< 6%, C3H8 <= 3000ppm /N2
Standard gas for calibration of alarm leak detector
Alarm calibration
CH4/Air
i-C4H10/Air
C12/N2
H2S/N2
Special mixed gas
Mixed gas for laser applications(F2, Ne, He) contains 3-6 components.
Gas for welding protection
Excimer laser gas（F2，Ar，Ne He 等）；
Electric light source mixed gas（Ar+Ne，CH2Br2+Kr，CH3Br+Kr 等）
****Gas usage(Ethylene oxide+CO2 or Freon)
Simulate air
Gas for exploration and heat treatment；
High purity gas:
Nitrogen 99.999-99.9996%
Argon 99.999-99.9996%
Hydrogen 99.99% -99.999%
Oxygen 99.99% -99.995%
Helium 99.99-99.99995%
Carbon monoxide 99.95-99.99%
Carbon dioxide 99.99% -99.995%
Valves: including regulating valves and globe valves, suitable for high-purity gases, corrosive gases, as well as ordinary regulating valves. Valve categories include imported valves and valves from the company's designated manufacturing plants.
According to user needs, provide trace (ppm) binary or multicomponent mixed standard gases such as ethanol, methanol, methyl mercaptan, ethyl mercaptan, benzene series, ethers or thioethers, hydrogen sulfide, carbonyl sulfide, sulfur dioxide, vinyl chloride, ethylene oxide, carbonyl chloride, etc.