PayPal, credit cards. Download editable-PDF and invoice in 1 second!
GB/T 22507-2008 English PDF (GBT22507-2008)
GB/T 22507-2008 English PDF (GBT22507-2008)
Precio habitual
$90.00 USD
Precio habitual
Precio de oferta
$90.00 USD
Precio unitario
/
por
Los gastos de envío se calculan en la pantalla de pago.
No se pudo cargar la disponibilidad de retiro
Delivery: 3 seconds. Download true-PDF + Invoice.
Get QUOTATION in 1-minute: Click GB/T 22507-2008
Historical versions: GB/T 22507-2008
Preview True-PDF (Reload/Scroll if blank)
GB/T 22507-2008: Animal and vegetable fats and oils -- Determination of the content of trans fatty acid isomers of vegetable fats and oils -- Gas chromatographic method
GB/T 22507-2008
Animal and vegetable fats and oils. Determination of the content of trans fatty acid isomers of vegetable fats and oils. Gas chromatographic method
ICS 67.040
X04
National Standards of People's Republic of China
GB/T 22507-2008/ISO 15304.2002
Animal and vegetable fats vegetable oils trans fatty acid isomers
Determination by gas chromatography
(ISO 15304.2002, IDT)
Posted 2008-11-04
2009-01-20 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This standard is identical with ISO 15304.2002 "Animal and vegetable fats vegetable oils Determination of trans fatty acid isomers by GC
Law "(in English).
For ease of use, the standard ISO 15304.2002 includes the following editorial changes.
--- "This International Standard" be replaced by "this standard";
"." --- With a decimal point instead of a comma as the decimal point, "";
--- Delete international standards foreword, preface adds this standard;
--- Delete ISO 15304.2002 in the informative overview of elements (including the cover, inside front cover, preface);
--- According to ISO 15304.2002 Technical Corrigendum 1, Figure B. 2 marked correct;
--- With GB/T 17376 "fatty acid methyl esters prepared animal fat" instead of ISO 5509.2000.
The Standard Appendix A, Appendix B, Appendix C, Appendix D and Appendix E are informative appendices.
The standard proposed by the National Food Authority.
This standard by the National Standardization Technical Committee OILS.
This standard was drafted. Academy of State Grain Administration, Jiangnan University School of food.
The main drafters of this standard. Rui Zhang, Xue Yalin, Wang Xingguo, PROJECTILES.
GB/T 22507-2008/ISO 15304.2002
Animal and vegetable fats vegetable oils trans fatty acid isomers
Determination by gas chromatography
1 Scope
This standard specifies the vegetable oil trans fatty acid isomers of determination by capillary column gas chromatography.
This standard uses a single capillary column gas chromatography (GC) method for the determination of generating (high temperature) refining or hydrogenated vegetable oils trans-iso
Structure content of the body.
The same standard in the same sample analysis can also be given in the report of other fatty acids (for example. total fatty acid composition, saturated fatty acids, single
Unsaturated fatty acids and polyunsaturated fatty acids of the total).
Note 1. The trans isomer content may be obtained by the standard method of obtaining other trans isomer content is not the same.
Note 2 .( temperature) refining (deacidification and deodorization) produced only monounsaturated fatty acids and polyunsaturated fatty acids geometric isomers, such as the double bond position remains unchanged;
Hydrogenation process produces both positional isomers and geometric isomers produced.
Note 3. Some special produced by hydrogenation of cis, trans isomers may also peaks will affect the accuracy of the results. Typically, this part of the partially hydrogenated oils heterogeneous
Body may be negligible.
2 Normative references
The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent
Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research
Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
GB/T 15687 animal and plant oils prepared sample (GB/T 15687-2008, ISO 661.2003, IDT)
GB/T 17376 Animal and vegetable fats fatty acid methyl esters prepared (GB/T 17376-2008, ISO 5509.2000, IDT)
3 Terms and Definitions
The following terms and definitions apply to this standard.
3.1
3.2
The sum of all trans double bonds of fatty acid methyl esters, expressed as a mass fraction of total fatty acid methyl esters.
Note. The content of trans fatty acid isomers, expressed as a percentage.
Principle 4
Based on the fatty acid carbon chain length, (not) the different degree of saturation, geometry and position of double bonds in the polar stationary phase by capillary gas chromatography
Spectral separation column fatty acid methyl ester sample.
5 Reagents and materials
Unless otherwise specified, use only analytical reagent.
GB/T 22507-2008/ISO 15304.2002
5.1 The carrier gas
Use a dry, remove gas chromatography grade oxygen carrier gas, preferably helium, hydrogen or nitrogen.
Warning --- only when using capillary column analysis, optional hydrogen as a carrier gas, make analysis faster than doubled (relative to helium
Ratio), but there is a risk. Hydrogen should be used with safety devices, safety devices, combined with the instrument together is the basic requirement.
5.2 has certified reference material (CRM)
BCR162 (soybean/corn hybrid) can be obtained from the European Commission (EC) Standards Board.
NOTE. In addition to the EC CRM, but also to use well-known vendors such as calibration standards Supelco, Larodan, Nuchek and Sigma companies. different
Hydrogenated oils should choose different standards (for example. lauric oil, lauric oils and palm oil-free).
6 Instruments
Common laboratory instruments, and the following special equipment.
6.1 Gas chromatograph. equipped with capillary injection system (preferably with shunt, shunt ratio of about 1.100) and flame ionization detector
(FID).
6.2 Capillary column. having a strong polar stationary phase (for example, CPTM-Sil88, SP-2340, BPX-70 or similar polar cyanopropyl stationary phase,
Such as the SP-2380 and SP-2560, they also have different geometric isomers similar resolving power).
Note. In order to increase the separation effect, it is recommended to use the SP-2560 or 100m CPTM-Sil88 column, hydrogen as a carrier gas.
Column specifications are as follows.
--- CPTM-Sil88, (50m ~ 100m) × 0.25mm inner diameter, 0.20μm;
--- SP-2360, (50m ~ 100m) × 0.25mm inner diameter, 0.2μm;
--- SP-2340,60m × 0.25mm inner diameter, 0.2μm;
--- BPX-70,50m × 0.22mm inner diameter, 0.25μm.
Best conditions used are listed in 10.2.1, see Appendix A.
7 for sampling
This standard does not provide for sampling method is recommended for sampling execution GB/T 5524 "Animal and vegetable fats for sampling." [1].
Laboratory received the samples should be representative, it has not been damaged in transit and during storage or change.
8 Sample Preparation
Sample preparation according to GB/T 15687 execution.
Before removing the test portion from the sample, the sample mixed well. Solid sample is completely melted to ensure adequate mixing.
Preparation 9 Methyl
In accordance with GB/T 17376 A sample of the methyl esterification of triglycerides.
May also be used AOCSCe2-66 [2] or IUPAC2.301 [3] Method.
Determination of trans isomers, such as extra virgin olive oil, according to GB/T 17376 trans esterification procedures, the sample should be avoided
heating.
10 analysis steps
10.1 General
At the same analytical sample (or series of samples), blank samples (n-heptane) and a reference sample (CRM) (5.2).
10.2 GC conditions
10.2.1 Selection Table 1 Recommended set temperature and column, set the gas chromatograph. Table 1 to adjust the carrier gas linear velocity, the split ratio of about
100. A typical chromatogram under chromatographic conditions given in Table 1 obtained see Appendix B.
GB/T 22507-2008/ISO 15304.2002
Table 1 hydrogenated veg...
Get QUOTATION in 1-minute: Click GB/T 22507-2008
Historical versions: GB/T 22507-2008
Preview True-PDF (Reload/Scroll if blank)
GB/T 22507-2008: Animal and vegetable fats and oils -- Determination of the content of trans fatty acid isomers of vegetable fats and oils -- Gas chromatographic method
GB/T 22507-2008
Animal and vegetable fats and oils. Determination of the content of trans fatty acid isomers of vegetable fats and oils. Gas chromatographic method
ICS 67.040
X04
National Standards of People's Republic of China
GB/T 22507-2008/ISO 15304.2002
Animal and vegetable fats vegetable oils trans fatty acid isomers
Determination by gas chromatography
(ISO 15304.2002, IDT)
Posted 2008-11-04
2009-01-20 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This standard is identical with ISO 15304.2002 "Animal and vegetable fats vegetable oils Determination of trans fatty acid isomers by GC
Law "(in English).
For ease of use, the standard ISO 15304.2002 includes the following editorial changes.
--- "This International Standard" be replaced by "this standard";
"." --- With a decimal point instead of a comma as the decimal point, "";
--- Delete international standards foreword, preface adds this standard;
--- Delete ISO 15304.2002 in the informative overview of elements (including the cover, inside front cover, preface);
--- According to ISO 15304.2002 Technical Corrigendum 1, Figure B. 2 marked correct;
--- With GB/T 17376 "fatty acid methyl esters prepared animal fat" instead of ISO 5509.2000.
The Standard Appendix A, Appendix B, Appendix C, Appendix D and Appendix E are informative appendices.
The standard proposed by the National Food Authority.
This standard by the National Standardization Technical Committee OILS.
This standard was drafted. Academy of State Grain Administration, Jiangnan University School of food.
The main drafters of this standard. Rui Zhang, Xue Yalin, Wang Xingguo, PROJECTILES.
GB/T 22507-2008/ISO 15304.2002
Animal and vegetable fats vegetable oils trans fatty acid isomers
Determination by gas chromatography
1 Scope
This standard specifies the vegetable oil trans fatty acid isomers of determination by capillary column gas chromatography.
This standard uses a single capillary column gas chromatography (GC) method for the determination of generating (high temperature) refining or hydrogenated vegetable oils trans-iso
Structure content of the body.
The same standard in the same sample analysis can also be given in the report of other fatty acids (for example. total fatty acid composition, saturated fatty acids, single
Unsaturated fatty acids and polyunsaturated fatty acids of the total).
Note 1. The trans isomer content may be obtained by the standard method of obtaining other trans isomer content is not the same.
Note 2 .( temperature) refining (deacidification and deodorization) produced only monounsaturated fatty acids and polyunsaturated fatty acids geometric isomers, such as the double bond position remains unchanged;
Hydrogenation process produces both positional isomers and geometric isomers produced.
Note 3. Some special produced by hydrogenation of cis, trans isomers may also peaks will affect the accuracy of the results. Typically, this part of the partially hydrogenated oils heterogeneous
Body may be negligible.
2 Normative references
The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent
Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research
Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
GB/T 15687 animal and plant oils prepared sample (GB/T 15687-2008, ISO 661.2003, IDT)
GB/T 17376 Animal and vegetable fats fatty acid methyl esters prepared (GB/T 17376-2008, ISO 5509.2000, IDT)
3 Terms and Definitions
The following terms and definitions apply to this standard.
3.1
3.2
The sum of all trans double bonds of fatty acid methyl esters, expressed as a mass fraction of total fatty acid methyl esters.
Note. The content of trans fatty acid isomers, expressed as a percentage.
Principle 4
Based on the fatty acid carbon chain length, (not) the different degree of saturation, geometry and position of double bonds in the polar stationary phase by capillary gas chromatography
Spectral separation column fatty acid methyl ester sample.
5 Reagents and materials
Unless otherwise specified, use only analytical reagent.
GB/T 22507-2008/ISO 15304.2002
5.1 The carrier gas
Use a dry, remove gas chromatography grade oxygen carrier gas, preferably helium, hydrogen or nitrogen.
Warning --- only when using capillary column analysis, optional hydrogen as a carrier gas, make analysis faster than doubled (relative to helium
Ratio), but there is a risk. Hydrogen should be used with safety devices, safety devices, combined with the instrument together is the basic requirement.
5.2 has certified reference material (CRM)
BCR162 (soybean/corn hybrid) can be obtained from the European Commission (EC) Standards Board.
NOTE. In addition to the EC CRM, but also to use well-known vendors such as calibration standards Supelco, Larodan, Nuchek and Sigma companies. different
Hydrogenated oils should choose different standards (for example. lauric oil, lauric oils and palm oil-free).
6 Instruments
Common laboratory instruments, and the following special equipment.
6.1 Gas chromatograph. equipped with capillary injection system (preferably with shunt, shunt ratio of about 1.100) and flame ionization detector
(FID).
6.2 Capillary column. having a strong polar stationary phase (for example, CPTM-Sil88, SP-2340, BPX-70 or similar polar cyanopropyl stationary phase,
Such as the SP-2380 and SP-2560, they also have different geometric isomers similar resolving power).
Note. In order to increase the separation effect, it is recommended to use the SP-2560 or 100m CPTM-Sil88 column, hydrogen as a carrier gas.
Column specifications are as follows.
--- CPTM-Sil88, (50m ~ 100m) × 0.25mm inner diameter, 0.20μm;
--- SP-2360, (50m ~ 100m) × 0.25mm inner diameter, 0.2μm;
--- SP-2340,60m × 0.25mm inner diameter, 0.2μm;
--- BPX-70,50m × 0.22mm inner diameter, 0.25μm.
Best conditions used are listed in 10.2.1, see Appendix A.
7 for sampling
This standard does not provide for sampling method is recommended for sampling execution GB/T 5524 "Animal and vegetable fats for sampling." [1].
Laboratory received the samples should be representative, it has not been damaged in transit and during storage or change.
8 Sample Preparation
Sample preparation according to GB/T 15687 execution.
Before removing the test portion from the sample, the sample mixed well. Solid sample is completely melted to ensure adequate mixing.
Preparation 9 Methyl
In accordance with GB/T 17376 A sample of the methyl esterification of triglycerides.
May also be used AOCSCe2-66 [2] or IUPAC2.301 [3] Method.
Determination of trans isomers, such as extra virgin olive oil, according to GB/T 17376 trans esterification procedures, the sample should be avoided
heating.
10 analysis steps
10.1 General
At the same analytical sample (or series of samples), blank samples (n-heptane) and a reference sample (CRM) (5.2).
10.2 GC conditions
10.2.1 Selection Table 1 Recommended set temperature and column, set the gas chromatograph. Table 1 to adjust the carrier gas linear velocity, the split ratio of about
100. A typical chromatogram under chromatographic conditions given in Table 1 obtained see Appendix B.
GB/T 22507-2008/ISO 15304.2002
Table 1 hydrogenated veg...
Share









