SN/T 5395-2022 in English
VALIDIdentification of Phoebe bournei(Hemsl. )Yang
- Issued on:2022-07-07
- Implemented on:2023-02-01
- File Format:PDF
- Delivery:Via email within 5 business days
$408.00
Introduction
Standard Overview
SN/T 5395-2022 is an industry standard for entry-exit inspection and quarantine issued by the General Administration of Customs of the People's Republic of China and will be officially implemented on February 1, 2023. This standard specifies the authoritative identification method for plants such as Poepe porrmer(Hemsl.) Yang.
Comparison of technical frameworks
| Dimensions | This standard | Old version of the method |
|---|---|---|
| Identification accuracy | Molecular markers + morphological double verification | Single morphological identification |
| Sample processing | Standardized pre-processing process | No unified standard |
| Data recording | Electronic recording system | Paper records |
Core technical requirements
Chapter 4 of the standard explicitly requires the use of DNA barcoding technology for species confirmation, and recommends the use of ITS2 sequences as standard markers. Morphological identification must include the following elements:
- Plant height measurement error ≤ 0.5cm
- Digital record of leaf morphology
- Microscopic observation of flower and fruit organs
Implementation recommendations
Application case of Fuzhou Customs: In the 2023 entry quarantine, 3 batches of mislabeled plants were successfully detected through this standard, and the identification efficiency was increased by 40%.
Recommended laboratory configuration:
- Molecular biology experimental area (PCR instrument, electrophoresis system)
- Plant specimen digital collection equipment
- Reference library of standard substances
Standard evolution analysis
This standard inherits and develops the writing specifications of GB/T 1.1-2020. The main technical breakthroughs include:
- The molecular identification system of Poepe porrmer was established for the first time
- Blockchain technology was introduced to ensure data traceability
- In line with the International Plant Protection Convention (IPPC) standards
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