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SN/T 1354-2004: Determination of caffeine in honey for import and export. Liquid chromatography
Status: Obsolete
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| SN/T 1354-2004 | English | 479 |
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Determination of caffeine in honey for import and export. Liquid chromatography
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SN/T 1354-2004
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Basic data | Standard ID | SN/T 1354-2004 (SN/T1354-2004) | | Description (Translated English) | Determination of caffeine in honey for import and export. Liquid chromatography | | Sector / Industry | Commodity Inspection Standard (Recommended) | | Classification of Chinese Standard | X31 | | Classification of International Standard | 67.180.10 | | Word Count Estimation | 12,169 | | Date of Issue | 2004-06-01 | | Date of Implementation | 2004-12-01 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People Republic of China | | Summary | This standard specifies the caffeine content in honey export inspection sampling, sample preparation and liquid chromatographic methods. This standard applies to the caffeine content in honey export inspection. | SN/T 1354-2004: Determination of caffeine in honey for import and export. Liquid chromatography---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Determination of caffeine in honey for import and export.Liquid chromatography
Book of the People's Republic of China Entry and Exit Inspection and Quarantine
Caffeine content test in import and export honey
Method liquid chromatography
Released on June.2004
Implementation of.2004-12-01
People's Republic
The General Administration of Quality Supervision, Inspection and Quarantine issued
Foreword
Appendix A of this standard is an informative annex.
This standard is proposed and managed by the National Certification and Accreditation Administration.
This standard was drafted by the Hunan Entry-Exit Inspection and Quarantine Bureau of the People's Republic of China.
The main drafters of this standard. Dai Hua, Li Yongjun, Xiong Fang, Li Xiankun, Huang Zhiqiang, Yuan Zhi.
This standard is the industry standard for inspection and quarantine issued for the first time.
Caffeine content test in import and export honey
Method liquid chromatography
1 Scope
This standard specifies the sampling, sample preparation and liquid chromatographic methods for the determination of caffeine content in imported and exported honey.
This standard applies to the inspection of caffeine content in imported and exported honey.
2 sampling and sample preparation
2.1 Inspection lot
Do not exceed 1000 pieces (or 25t) for one inspection lot.
Goods in the same inspection lot should have the same characteristics, such as packaging, marking, origin, specifications and grades.
2.2 Number of samples
The number of samples is shown in Table 1.
Table 1 is a unit
Minimum number of samples in batch
1~10 1
11~50 5
51～100 10
101 to 500 for every 100 increase, increase 5
For each additional 100 above 501, increase 2
2.3 Sampling tools
2.3.1 Sampling tube. stainless steel tube, about 115cm long, inner diameter about 2.5cm; glass tube, about 115cm long, inner diameter about 2.5cm.
2.3.2 Mixer. Enamel barrel (or cup).
2.3.3 Vial. 500mL with wide-mouth glass bottle.
2.4 Sampling methods
The number of samples according to 2.2 is randomly selected and opened one by one. Slowly place the glass tube from the opening to the bottom of the barrel and draw the sample. Such as
In the case of honey crystallizing, slowly insert it into the bottom of the barrel and draw the sample. Not less than 100g of each sample is taken as the original sample.
Pour the sample into the sampler, mix well, separate about 1kg, put it into a clean and dry sample bottle, seal it, mark it, timely
Send it to the lab.
In the case of bottled honey, according to the number of pieces to be opened, take a random bottle from each piece, mark it, and send it to the laboratory in time.
2.5 Sample preparation
The sample was thoroughly stirred and evenly divided into two portions, which were placed in a sample bottle as a sample, sealed, and marked.
If crystals are precipitated in the sample, the vial is capped and then warmed in a water bath not exceeding 40 °C. All crystals to be melted
Afterwards, open the lid, stir well, divide into two parts, seal, and mark.
In the case of bottled honey, pour all the honey back, pour it together, stir well, and take out about 1kg of representative sample. 1kg generation
After the epigenetic sample was homogenized, it was divided into two portions, and placed in a sample bottle as a sample, sealed, and marked. In the process of sampling and sample preparation
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