LS/T 3122-2019 in English
VALIDSumac seeds
- Issued on:2019-06-06
- Implemented on:2019-12-06
- File Format:PDF
- Delivery:Via email within 1~3 business days
$97.00
| Standard No: | LS/T 3122-2019 |
| Document status: | VALID |
| Title in English: | Sumac seeds |
| Title in Chinese: | 盐肤木果籽 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 1~3 business days |
| Issued on: | 2019-06-06 |
| Implemented on: | 2019-12-06 |
| ICS Classification: | 67.200.20-Oilseeds |
| Chinese Classification: | B33-Oil crop and product |
| Professional Classification: | LS-Cereal |
| Related Keywords: | rhus chinensis seeds
sumac seeds introduction analysis dry basis oil content standards oil content content standard |
| Related Topics: | seed
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Introduction
Analysis of the core content of the standard
| Key indicators | Internal requirements | External requirements | Testing standards |
|---|---|---|---|
| Oil content (dry basis) | ≥9.0% | <9.0% | GB/T 14488.1 |
| Moisture content | ≤14.0% | GB 5009.3 | |
| Impurity content | ≤5.0% | GB/T 5494 | |
Technical Points
This standard applies to the whole process management of seeds of the Anacardiaceae plant Rhus chinensis Mill.. The key quality grading basis is dry basis oil content. Things to note when testing:
- The moisture content is determined by the 105℃ constant weight method (GB 5009.3)
- Impurity inspection needs to distinguish between undersize (aperture 1.5mm) and organic/inorganic impurities
- Odor identification requires no abnormal odors such as mold and rancidity
Background of standard implementation
This standard was issued by the State Administration of Grain and Material Reserves in 2019, filling the gap in the lack of industry standards for Rhus chinensis seeds as a specialty oil. The main technology refers to GB 19641 Edible Vegetable Oil Safety Standard, and the oil content threshold is set based on large sample test data on the nutritional components of Rhus chinensis seeds by institutions such as Jiangnan University.
Application suggestions
Purchasing process
It is recommended to give priority to kernels with an oil content ≥10%. When the moisture content exceeds 12%, the actual oil content needs to be calculated by dry weight. Typical case: A certain oil and fat company increased the oil content standard to 10.5%, and the oil yield increased by 2.3%.
Storage and transportation management
It is recommended to use plastic woven bags specified in GB/T 8946 for packaging, and the stacking height should not exceed 6 layers. Transport vehicles must be equipped with rainproof tarpaulins, and the relative humidity in the warehouse should be controlled below 65%.
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