GB/T 39107-2020 English PDF (GBT39107-2020)
GB/T 39107-2020 English PDF (GBT39107-2020)
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GB/T 39107-2020: Determination of volatile organic compounds content for consumer products -- Static headspace sampling method
GB/T 39107-2020
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 97.200
Y 57
Determination of Volatile Organic Compounds Content
for Consumer Products - Static Headspace Sampling
Method
ISSUED ON: OCTOBER 21, 2020
IMPLEMENTED ON: OCTOBER 21, 2020
Issued by: State Administration for Market Regulation;
Standardization Administration of the People’s Republic of
China.
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Reagents and Materials ... 4
3 Instruments and Equipment ... 5
4 Gas Chromatography / Mass Spectrometry ... 6
5 Gas Chromatography ... 10
Appendix A (informative) Information of 13 Volatile Organic Compounds ... 13
Appendix B (informative) Selected Ion Monitoring Chromatogram of Standard
Substances ... 14
Appendix C (informative) Gas Chromatogram of Standard Substances ... 16
Determination of Volatile Organic Compounds Content
for Consumer Products - Static Headspace Sampling
Method
WARNING---the personnel using this Standard shall have formal laboratory work
experience. This Standard does not point out all the possible safety issues. The
user is responsible for taking appropriate safety and health measures and
ensuring compliance with the conditions stipulated by relevant national laws
and regulations. The chemical reagents used in the experiments are volatile and
toxic substances, which shall be carried out in a fume hood. During the
operation, wear protective equipment as required, and avoid contact with skin
and clothing.
1 Scope
This Standard specifies the static headspace sampling and determination method for
the contents of 13 volatile organic compounds (dichloromethane, n-hexane, benzene,
trichloroethylene, toluene, ethylbenzene, m-xylene, p-xylene, o-xylene, cyclohexanone,
1,3,5-trimethylbenzene, nitrobenzene, isophorone) in consumer products (hereinafter
referred to as 13 volatile organic compounds), including gas chromatography / mass
spectrometry and gas chromatography.
This Standard is applicable to all kinds of consumer products containing the 13 volatile
organic compounds, such as: wood, foaming materials, coatings, adhesives and inks,
etc.
2 Reagents and Materials
2.1 Methanol (CH3OH): chromatographically pure.
2.2 Benzene (C6H6), toluene (C7H8), ethylbenzene (C8H10), m-xylene (C8H10), p-xylene
(C8H10), o-xylene (C8H10) benzene series standard solution: 2,000 mg/L, commercially
available standard substance, methanol solvent.
2.3 1,3,5-trimethylbenzene (C9H12) standard solution: 2,000 mg/L, commercially
available standard substance, methanol solvent.
2.4 N-hexane (C6H14) standard solution: 2,000 mg/L, commercially available standard
substance, methanol solvent.
2.5 Cyclohexanone (C6H10O): commercially available standard substance, 99.9%
3.4 Electronic balance: with a division value of 0.1 mg.
3.5 Micro syringe: 10 μL, 50 μL.
3.6 Headspace sampling bottle capper.
3.7 Headspace bottle: with a volume of 20 mL.
3.8 Brown glass volumetric flask: 5 mL, 10 mL.
4 Gas Chromatography / Mass Spectrometry
4.1 Principle
The sample is placed in a closed headspace bottle and equilibrated at a specific
temperature for a certain period of time, so that the target compound in the sample
volatilizes and reaches dynamic equilibrium in the headspace bottle. Through the gas
chromatograph - mass spectrometer, conduct separation and detection. Adopt the
internal standard method for quantification.
4.2 Analytical Procedures
4.2.1 Sample processing
In terms of solid samples like wood and foaming materials: freeze and crush the
sample, or cut it to a particle size of less than 2 mm; accurately weigh-take 0.02 g of
the sample, place it in a headspace bottle; add 10 μL of the internal standard working
solution (2.14), then, quickly seal the headspace bottle; reserve it for later testing.
In terms of samples like coatings, adhesives and inks: accurately weigh-take 0.02 g of
the sample, place it in a headspace bottle; add 10 μL of the internal standard working
solution (2.14), then, quickly seal the headspace bottle; reserve it for later testing.
If the content of the compound under test is excessively high in the sample, the
sampling size should be adjusted as appropriate.
4.2.2 Determination conditions
4.2.2.1 Conditions of headspace sampler
The conditions of the headspace sampler include:
a) Equilibrium temperature: 150 °C;
b) Equilibrium time: 45 min;
c) Transmission line temperature: 170 °C;
d) Pressurization time: 1.0 min;
e) Needle withdrawal time: 0.2 min;
f) Injection volume: 1 mL;
g) Temperature of sample injection needle: 160 °C.
4.2.2.2 Conditions of gas chromatograph and mass spectrometer
Due to different instruments being used, the optimal analysis conditions might also be
different. Hence, it is impossible to provide general parameters for instrument analysis.
The set parameters should ensure effective separation and determination of the tested
components. The following parameters have been proven to be feasible:
a) Chromatographic column: DB-624 UI chromatographic column (60 m 0.25
mm 1.4 μm), or equivalent;
b) Program temperature: 40 °C, maintain for 2 min, then, at the rate of 5 °C/min,
raise the temperature to 120 °C, maintain for 3 min; at the rate of 10 °C/min,
raise the temperature to 160 °C, maintain for 1 min; at the rate of 5 °C/min,
raise the temperature to 210 °C, maintain for 0 min; in the end, at the rate of
15 °C/min, raise the temperature to 230 °C, maintain for 1 min;
c) Carrier gas: high-purity helium, with a flow rate of 1 mL/min;
d) Sample inlet temperature: 250 °C;
e) Sample injection mode: split injection, with a split ratio of 1:1;
f) Interface temperature: 280 °C;
g) Detector: quadrupole mass analyzer;
h) Ionization mode: EI;
i) Ionization energy: 70 eV;
j) Ion source temperature: 230 °C;
k) Quadrupole temperature: 150 °C;
l) Solvent delay: 8 min;
m) Scanning mode: selected ion monitoring (SIM) mode; refer to Appendix A for
target qualitative and quantitative ions.
4.2.3 Drawing of standard working curve
5 Gas Chromatography
5.1 Principle
The sample is placed in a closed headspace bottle and equilibrated at a specific
temperature for a certain period of time, so that the target compound in the sample
volatilizes and reaches dynamic equilibrium in the headspace bottle. Through the gas
chromatograph, conduct separation and detection. Adopt the internal standard method
for quantification.
5.2 Analytical Procedures
5.2.1 Sample processing
Same as 4.2.1.
5.2.2 Determination conditions
5.2.2.1 Conditions of headspace sampler
Same as 4.2.2.1.
5.2.2.2 Conditions of gas chromatograph
Due to different instruments being used, the optimal analysis conditions might also be
different. Hence, it is impossible to provide general parameters for instrument analysis.
The set parameters should ensure effective separation and determination of the tested
components. The following parameters have been proven to be feasible:
a) Chromatographic column: same as 4.2.2.2;
b) Program temperature: same as 4.2.2.2;
c) Sample inlet temperature: 250 °C;
d) Carrier gas: nitrogen, with a flow rate of 1 mL/min;
e) Detector: equipped with a flame ionization detector (FID), 300 °C;
f) Sample injection mode: split injection, with a split ratio of 10:1.
5.2.3 Drawing of standard working curve
Respectively and accurately transfer-take 25 μL of the stand...
Get QUOTATION in 1-minute: Click GB/T 39107-2020
Historical versions: GB/T 39107-2020
Preview True-PDF (Reload/Scroll if blank)
GB/T 39107-2020: Determination of volatile organic compounds content for consumer products -- Static headspace sampling method
GB/T 39107-2020
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 97.200
Y 57
Determination of Volatile Organic Compounds Content
for Consumer Products - Static Headspace Sampling
Method
ISSUED ON: OCTOBER 21, 2020
IMPLEMENTED ON: OCTOBER 21, 2020
Issued by: State Administration for Market Regulation;
Standardization Administration of the People’s Republic of
China.
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Reagents and Materials ... 4
3 Instruments and Equipment ... 5
4 Gas Chromatography / Mass Spectrometry ... 6
5 Gas Chromatography ... 10
Appendix A (informative) Information of 13 Volatile Organic Compounds ... 13
Appendix B (informative) Selected Ion Monitoring Chromatogram of Standard
Substances ... 14
Appendix C (informative) Gas Chromatogram of Standard Substances ... 16
Determination of Volatile Organic Compounds Content
for Consumer Products - Static Headspace Sampling
Method
WARNING---the personnel using this Standard shall have formal laboratory work
experience. This Standard does not point out all the possible safety issues. The
user is responsible for taking appropriate safety and health measures and
ensuring compliance with the conditions stipulated by relevant national laws
and regulations. The chemical reagents used in the experiments are volatile and
toxic substances, which shall be carried out in a fume hood. During the
operation, wear protective equipment as required, and avoid contact with skin
and clothing.
1 Scope
This Standard specifies the static headspace sampling and determination method for
the contents of 13 volatile organic compounds (dichloromethane, n-hexane, benzene,
trichloroethylene, toluene, ethylbenzene, m-xylene, p-xylene, o-xylene, cyclohexanone,
1,3,5-trimethylbenzene, nitrobenzene, isophorone) in consumer products (hereinafter
referred to as 13 volatile organic compounds), including gas chromatography / mass
spectrometry and gas chromatography.
This Standard is applicable to all kinds of consumer products containing the 13 volatile
organic compounds, such as: wood, foaming materials, coatings, adhesives and inks,
etc.
2 Reagents and Materials
2.1 Methanol (CH3OH): chromatographically pure.
2.2 Benzene (C6H6), toluene (C7H8), ethylbenzene (C8H10), m-xylene (C8H10), p-xylene
(C8H10), o-xylene (C8H10) benzene series standard solution: 2,000 mg/L, commercially
available standard substance, methanol solvent.
2.3 1,3,5-trimethylbenzene (C9H12) standard solution: 2,000 mg/L, commercially
available standard substance, methanol solvent.
2.4 N-hexane (C6H14) standard solution: 2,000 mg/L, commercially available standard
substance, methanol solvent.
2.5 Cyclohexanone (C6H10O): commercially available standard substance, 99.9%
3.4 Electronic balance: with a division value of 0.1 mg.
3.5 Micro syringe: 10 μL, 50 μL.
3.6 Headspace sampling bottle capper.
3.7 Headspace bottle: with a volume of 20 mL.
3.8 Brown glass volumetric flask: 5 mL, 10 mL.
4 Gas Chromatography / Mass Spectrometry
4.1 Principle
The sample is placed in a closed headspace bottle and equilibrated at a specific
temperature for a certain period of time, so that the target compound in the sample
volatilizes and reaches dynamic equilibrium in the headspace bottle. Through the gas
chromatograph - mass spectrometer, conduct separation and detection. Adopt the
internal standard method for quantification.
4.2 Analytical Procedures
4.2.1 Sample processing
In terms of solid samples like wood and foaming materials: freeze and crush the
sample, or cut it to a particle size of less than 2 mm; accurately weigh-take 0.02 g of
the sample, place it in a headspace bottle; add 10 μL of the internal standard working
solution (2.14), then, quickly seal the headspace bottle; reserve it for later testing.
In terms of samples like coatings, adhesives and inks: accurately weigh-take 0.02 g of
the sample, place it in a headspace bottle; add 10 μL of the internal standard working
solution (2.14), then, quickly seal the headspace bottle; reserve it for later testing.
If the content of the compound under test is excessively high in the sample, the
sampling size should be adjusted as appropriate.
4.2.2 Determination conditions
4.2.2.1 Conditions of headspace sampler
The conditions of the headspace sampler include:
a) Equilibrium temperature: 150 °C;
b) Equilibrium time: 45 min;
c) Transmission line temperature: 170 °C;
d) Pressurization time: 1.0 min;
e) Needle withdrawal time: 0.2 min;
f) Injection volume: 1 mL;
g) Temperature of sample injection needle: 160 °C.
4.2.2.2 Conditions of gas chromatograph and mass spectrometer
Due to different instruments being used, the optimal analysis conditions might also be
different. Hence, it is impossible to provide general parameters for instrument analysis.
The set parameters should ensure effective separation and determination of the tested
components. The following parameters have been proven to be feasible:
a) Chromatographic column: DB-624 UI chromatographic column (60 m 0.25
mm 1.4 μm), or equivalent;
b) Program temperature: 40 °C, maintain for 2 min, then, at the rate of 5 °C/min,
raise the temperature to 120 °C, maintain for 3 min; at the rate of 10 °C/min,
raise the temperature to 160 °C, maintain for 1 min; at the rate of 5 °C/min,
raise the temperature to 210 °C, maintain for 0 min; in the end, at the rate of
15 °C/min, raise the temperature to 230 °C, maintain for 1 min;
c) Carrier gas: high-purity helium, with a flow rate of 1 mL/min;
d) Sample inlet temperature: 250 °C;
e) Sample injection mode: split injection, with a split ratio of 1:1;
f) Interface temperature: 280 °C;
g) Detector: quadrupole mass analyzer;
h) Ionization mode: EI;
i) Ionization energy: 70 eV;
j) Ion source temperature: 230 °C;
k) Quadrupole temperature: 150 °C;
l) Solvent delay: 8 min;
m) Scanning mode: selected ion monitoring (SIM) mode; refer to Appendix A for
target qualitative and quantitative ions.
4.2.3 Drawing of standard working curve
5 Gas Chromatography
5.1 Principle
The sample is placed in a closed headspace bottle and equilibrated at a specific
temperature for a certain period of time, so that the target compound in the sample
volatilizes and reaches dynamic equilibrium in the headspace bottle. Through the gas
chromatograph, conduct separation and detection. Adopt the internal standard method
for quantification.
5.2 Analytical Procedures
5.2.1 Sample processing
Same as 4.2.1.
5.2.2 Determination conditions
5.2.2.1 Conditions of headspace sampler
Same as 4.2.2.1.
5.2.2.2 Conditions of gas chromatograph
Due to different instruments being used, the optimal analysis conditions might also be
different. Hence, it is impossible to provide general parameters for instrument analysis.
The set parameters should ensure effective separation and determination of the tested
components. The following parameters have been proven to be feasible:
a) Chromatographic column: same as 4.2.2.2;
b) Program temperature: same as 4.2.2.2;
c) Sample inlet temperature: 250 °C;
d) Carrier gas: nitrogen, with a flow rate of 1 mL/min;
e) Detector: equipped with a flame ionization detector (FID), 300 °C;
f) Sample injection mode: split injection, with a split ratio of 10:1.
5.2.3 Drawing of standard working curve
Respectively and accurately transfer-take 25 μL of the stand...