Standard Gas(KOLAS CRM/Certified Reference Material)
DY has have been supplying standard material approved by "Korean Government Agency for Technology and Standards" as a standard material producing company to be used for checking exhaust gas, process control, development research & laboratory, law-medical science in industrial field business.
DY providing the best CRM(Certified Reference Material) fully interoperable competitive power for quality as KS A ISO Guide 34, 35 approved by stabilized requirements.
Standard gas
Standard gas is a mixed gases including the exact concentration and uncertainty of measurement, and customers can check and adjust directly measuring equipment and way of measuring.
1. Standard Material : RM(Reference Material)
- The standard material is fully homogeneous and stable made about specified characteristics with the object of using for testing and characteristics of nominal.
2. CRM(Certified Reference Materials)
- The standard material approved by an authorized association, to meet the specified characteristic value, uncertainty of measurement and traceability by using an authorized association procedure.
- Certified Reference Material for Measurement of Automobile Emission Gas
- DY distributes CRM(Certified Reference materials) using for correcting detect-equipment of an exhaust-gas at the automobile inspection office as "a standard material producing company" approved by KOLAS.
DY's CRM offer customers the best quality to decide the concentration by comparison analysis with the first CRM of KRISS(Korea Research Institute of Standards and Science)
as a representative agency of testing.
DY is a hit with customers providing reference material for testing can be a disposable vesselled Freon gas. And it can be getting the reliable result using by standard gas at industrial sites.
- Item of Acquisition
- 1.Standard gas for comprehensive inspection
- CO 5.00 %mol/mol, CO2 14.0%mol/mol, C3H8 2,000 µmol/mol, O2 1.00%mol/mol / N2 (13.6L
- NO 1,800µmol/mol /N2 (13.6L)
- 2. Standard gas for periodic inspection
- CO 5.00%mol/mol, CO2 14.0%mol/mol, C3H8 2,000 µmol/mol / N2 (13.6L)
- Pressure Regulator
- Using for precision and periodic inspection

- A room for Analysis
- Ethanol Certified Reference Material
- Due to the lack of reliability for a breathalyzer for blood alcohol level, there are many arguments, so it should be necessary the precision detecting to solve many arguments.
DY developed a reliable standard reference material with periodic correction and to increase detecting ability and approved by KOLAS as a first agency for standard Ethanol Certified Reference Material of a breathalyzer in Korea.
DY supplying Ethanol Certified Reference Material to the Road Traffic Authority, and a domestic manufacturing companies,

KOLAS CRM List
Component & Matrix |
Ingredient |
Balance |
CRM code |
Authentication Range |
Unit |
Expansion relative uncertainty (Confidence level about 95 %, k=2) |
1 |
C2H5OH |
N2 |
CRM-112-03-1 |
50~500 |
μmol/mol |
1.9 % |
CRM-112-04-1 |
CRM-112-05-1 |
2 |
NO |
N2 |
CRM-112-03-2 |
20~3,000 |
μmol/mol |
2.0 % |
CRM-112-04-2 |
CRM-112-05-2 |
3 |
SO2 |
N2 |
CRM-112-03-3 |
20~3,000 |
μmol/mol |
2.0 % |
CRM-112-04-3 |
CRM-112-05-3 |
4 |
NO |
N2 |
CRM-112-03-4 |
20~3,000 |
μmol/mol |
2.0 % |
SO2 |
CRM-112-04-4 |
CRM-112-05-4 |
5 |
NO |
N2 |
CRM-112-03-5 |
20~20,000 |
μmol/mol |
2.0 % |
SO2 |
CRM-112-04-5 |
CO |
CRM-112-05-5 |
6 |
CO |
N2 |
CRM-112-03-6 |
1~100,000 |
μmol/mol |
2.0 % |
CRM-112-04-6 |
CRM-112-05-6 |
7 |
N2 |
He |
CRM-112-03-7 |
1~5 |
%mol/mol |
2.0 % |
CRM-112-04-7 |
CRM-112-05-7 |
8 |
O2 |
N2 |
CRM-112-03-8 |
0.3~30 |
%mol/mol |
2.0 % |
CRM-112-04-8 |
CRM-112-05-8 |
9 |
CO |
N2 |
CRM-112-03-9 |
0.05~10 |
%mol/mol |
2.0 % |
CO2 |
CRM-112-04-9 |
5~20 |
%mol/mol |
2.0 % |
C3H8 |
CRM-112-05-9 |
300~3,000 |
μmol/mol |
2.0 % |
10 |
O2 |
N2 |
CRM-112-03-10 |
0.3~5 |
%mol/mol |
2.0 % |
CO |
CRM-112-04-10 |
0.05~10 |
%mol/mol |
2.0 % |
CO2 |
CRM-112-05-10 |
5~20 |
%mol/mol |
2.0 % |
C3H8 |
300~3,000 |
μmol/mol |
2.0 % |
11 |
NO |
N₂ |
CRM-112-03-11 |
20~3,000 |
μmol/mol |
2.0 % |
CO |
CRM-112-04-11 |
20~100,000 |
μmol/mol |
2.0 % |
CRM-112-05-11 |
12 |
C2H6 |
CH4 |
CRM-112-04-12 |
1~7 |
%mol/mol |
2.0 % |
C3H8 |
0.5~3.5 |
%mol/mol |
2.0 % |
i-C2H10 |
0.1~1 |
%mol/mol |
2.0 % |
n-C4H10 |
0.1~1 |
%mol/mol |
2.0 % |
i-C5H12 |
0.01~0.1 |
%mol/mol |
2.0 % |
n-C5H12 |
0.01~0.1 |
%mol/mol |
2.0 % |
N2 |
0.1~1 |
%mol/mol |
2.0 % |
13 |
C2H6 |
CH4 |
CRM-112-04-13 |
1~7 |
%mol/mol |
2.0 % |
C3H8 |
0.5~3.5 |
%mol/mol |
2.0 % |
i-C4H10 |
0.1~1 |
%mol/mol |
2.0 % |
n-C4H10 |
0.1~1 |
%mol/mol |
2.0 % |
i-C5H12 |
0.01~0.1 |
%mol/mol |
2.0 % |
n-C5H12 |
0.01~0.1 |
%mol/mol |
2.0 % |
N2 |
0.1~1 |
%mol/mol |
2.0 % |
CO2 |
0.02~0.5 |
%mol/mol |
2.0 % |
14 |
C2H6 |
CH4 |
CRM-112-04-14 |
1~7 |
%mol/mol |
2.0 % |
C3H8 |
0.5~3.5 |
%mol/mol |
2.0 % |
i-C4H10 |
0.1~1 |
%mol/mol |
2.0 % |
n-C4H10 |
0.1~1 |
%mol/mol |
2.0 % |
i-C5H12 |
0.01~0.1 |
%mol/mol |
2.0 % |
n-C5H12 |
0.01~0.1 |
%mol/mol |
2.0 % |
n-C6H14 |
0.01~0.1 |
%mol/mol |
2.0 % |
N2 |
0.1~1 |
%mol/mol |
2.0 % |
CO2 |
0.02~0.5 |
%mol/mol |
2.0 % |
- Recognition

- General list of standard gas
- For measuring the environment(Odor,Toxic), Production control(Petrochemical)
Sortation |
Creation and Batangas Component & Matrix |
Concentration |
Note |
FROM |
TO |
UNIT |
1 |
NO |
5 |
5 000 |
μmol/mol |
|
N2 |
2 |
SO2 |
5 |
5000 |
μmol/mol |
|
N2 |
3 |
NO |
10 |
5000 |
μmol/mol |
|
SO2 |
10 |
5000 |
μmol/mol |
N2 |
4 |
NO |
10 |
5000 |
μmol/mol |
|
SO2 |
10 |
5000 |
μmol/mol |
CO |
10 |
20000 |
μmol/mol |
N2 |
|
|
|
5 |
NO2 |
10 |
1000 |
μmol/mol |
|
N2 |
6 |
NH3 |
5 |
1000 |
μmol/mol |
|
N2 |
7 |
HCl |
3 |
1000 |
μmol/mol |
|
N2 |
8 |
CO |
1 |
10000 |
μmol/mol |
|
N2 |
9 |
CO |
1 |
50 |
%mol/mol |
|
N2 |
10 |
CO2 |
1 |
10000 |
μmol/mol |
|
N2 |
11 |
CO2 |
1 |
50 |
%mol/mol |
|
N2 |
12 |
H2 |
2 |
1000 |
1000 |
|
N2(He) |
13 |
H2 |
0.1 |
50 |
%mol/mol |
|
N2(He) |
14 |
N2 |
5 |
1000 |
μmol/mol |
|
He |
15 |
H2 |
2 |
1000 |
μmol/mol |
|
O2 |
2 |
1000 |
μmol/mol |
N2 |
2 |
1000 |
μmol/mol |
He |
|
|
|
16 |
SF6 |
5 |
200 |
μmol/mol |
|
N2(He) |
17 |
C2H5OH |
10 |
500 |
μmol/mol |
ethanol |
N2(Air) |
18 |
DMS |
5 |
1000 |
μmol/mol |
|
N2 |
19 |
DMDS |
5 |
1000 |
μmol/mol |
|
N2 |
20 |
CH3SH |
5 |
1000 |
μmol/mol |
methylmercaptane |
N2 |
21 |
C2H5SH |
5 |
1000 |
μmol/mol |
ethylmercaptane |
N2 |
22 |
C2H4O |
5 |
1000 |
μmol/mol |
ethylen oxide |
N2 |
23 |
CH3CHO |
5 |
1000 |
μmol/mol |
Acetaldehyde |
N2 |
24 |
(CH3)2CO |
10 |
1000 |
μmol/mol |
acetone |
N2 |
25 |
CH3Cl |
10 |
1000 |
μmol/mol |
|
N2 |
26 |
Benzene |
5 |
500 |
μmol/mol |
|
N2 |
27 |
Toluene |
5 |
500 |
μmol/mol |
|
N2 |
28 |
Xylene |
5 |
500 |
μmol/mol |
|
N2 |
29 |
Benzene |
5 |
500 |
μmol/mol |
|
Toluene |
5 |
500 |
μmol/mol |
Xylene |
5 |
500 |
μmol/mol |
N2 |
|
|
|
30 |
CF4 |
5 |
2000 |
μmol/mol |
|
N2 |
31 |
H2S |
5 |
2000 |
μmol/mol |
|
N2 |
32 |
COS |
5 |
2000 |
μmol/mol |
|
N2 |
33 |
N2O |
5 |
2000 |
μmol/mol |
|
N2 |
34 |
CH4 |
1 |
10000 |
μmol/mol |
|
C2H4 |
1 |
10000 |
μmol/mol |
C2H6 |
1 |
10000 |
μmol/mol |
C3H8 |
1 |
10000 |
μmol/mol |
C4H10 |
1 |
10000 |
μmol/mol |
C5H12 |
1 |
10000 |
μmol/mol |
C6H14 |
1 |
10000 |
μmol/mol |
N2 |
|
|
|
35 |
CH4 |
1 |
50 |
%mol/mol |
|
C2H4 |
1 |
50 |
%mol/mol |
C2H6 |
1 |
50 |
%mol/mol |
C3H8 |
1 |
50 |
%mol/mol |
C4H10 |
1 |
50 |
%mol/mol |
C5H12 |
1 |
50 |
%mol/mol |
C6H14 |
1 |
50 |
%mol/mol |
N2 |
|
|
|
36 |
C2H6 |
1 |
7 |
%mol/mol |
CNG |
C3H8 |
0.5 |
3.5 |
%mol/mol |
i-C4H10 |
0.1 |
1 |
%mol/mol |
n-C4H10 |
0.1 |
1 |
%mol/mol |
i-C5H12 |
0.01 |
0.1 |
%mol/mol |
n-C5H12 |
0.01 |
0.1 |
%mol/mol |
n-C6H14 |
0.01 |
0.1 |
%mol/mol |
N2 |
0.1 |
1 |
%mol/mol |
CO2 |
0.02 |
0.5 |
%mol/mol |
CH4 |
|
|
%mol/mol |