GH/T 1152-2020 in English
VALIDCold storage technology for pear
- Issued on:2020-12-07
- Implemented on:2021-03-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
Price(USD)：
$160.00
$156.00
$156.00
| Standard No: | GH/T 1152-2020 |
| Document status: | VALID |
| Title in English: | Cold storage technology for pear |
| Title in Chinese: | 梨冷藏技术 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 1~3 business days |
| Issued on: | 2020-12-07 |
| Implemented on: | 2021-03-01 |
| ICS Classification: | 67.080.01-Fruits. Vegetables and derived products in general |
| Chinese Classification: | B31-Melon, fruit and vegetable planting and product |
| Related Keywords: | cold storage
cold storage technology % storage environment control variety refrigeration temperature storage period storage capacity |
| Related Topics: | technical standard
pear Tibetan refrigeration Technical English Technical English GH 2 Beijing-Tibet Technology Beijing-Tibet Technology gh/t refrigerated and l technology Liquid cooling technology general technology gh/t 1161 |
本标准规定了梨的采收与质量、预冷、冷藏技术及贮藏管理等要求。
本标准适用于酥梨、黄冠、雪花、鸭梨、南果、库尔勒香、京白、茌梨、苹果梨等主要品种鲜梨的中、长期冷藏。其他品种也可参照使用。
Introduction
Core changes in the standard revision
| Revision dimensions | 2017 version | 2020 version | Technical significance |
|---|---|---|---|
| Scope of application | Unspecified varieties | 9 new main cultivated varieties | Improve the accuracy of the application of the standard |
| Pre-cooling requirements | Not separately stipulated | 5 new chapters + Appendix B | Solving the problem of chilling damage to low-temperature sensitive varieties |
| Packaging materials | No specific requirements | Citing GB/T 34344 | Reduce the risk of water loss and gas damage |
Analysis of key technical parameters
Innovation of pre-cooling process
For sensitive varieties such as Huangguan Pear, the standard pioneered the gradient cooling method:
- First stage: 8-10℃ maintained for 3-5 days to stabilize the fruit temperature
- Second stage: slowly drop to 0℃ over 7-10 days
- Technical effect: The incidence of chicken claw disease is reduced by 60%
Storage environment control
| Variety | Refrigeration temperature(℃) | O2(%) | CO2(%) | Key Control Points |
|---|---|---|---|---|
| Supreme Pear | 0 | 3-5 | <2 | Ethylene Concentration Monitoring |
| Korla Fragrant Pear | -2~0 | 3-5 | 2-3 | Anti-freeze Damage |
Disease Prevention and Control System
Case Study on Comprehensive Prevention and Control of Blackheart Disease
After a cold storage in Hebei Province adopted the standard recommended calcium fertilizer spraying + gradient cooling scheme:
- The onset of the disease was postponed by 45 days
- The commodity rate increased to 92%
- The storage period was extended by 30 days
Implementation suggestions
- Complete warehouse disinfection and cooling 72 hours before warehousing
- The daily warehousing volume was strictly controlled within 15% of the storage capacity
- Establish a three-dimensional temperature monitoring system (upper/middle/lower layers of the cargo stack)
- Conduct monthly soluble solids + hardness tracking tests
Sample only — not a preview of GH/T 1152-2020
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