T/FXHT 003-2022 Active Group standards

T/FXHT 003-2022 Fenxian walnut

Publish Date: 2022-07-07 Implement Date: 2022-07-07 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/FXHT 003-2022

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: -

ICS Name: Fruits and their products

Publish Date: 2022-07-07

Implement Date: 2022-07-07

Scope

Main Technical Content: 1. Scope. This standard specifies requirements, inspection methods, inspection rules, packaging, labeling, storage, and transportation for walnuts. It is applicable to the grading and specification of walnuts. 2. Normative Reference Documents. All national, industry, and local standards, protocols, and norms referenced in this standard are currently in effect. The document numbers are provided for easy reference. 3. Requirements. This chapter primarily stipulates basic requirements, grading classification, and grade tolerances. 3.1 Basic Requirements. The basic requirements detail the characteristics of walnuts, covering general market requirements for walnut products in recent years. 3.2 Grading Classification. Walnuts are divided into three grades: Extra, First, and Second. Key technical indicators include transverse diameter, fruit uniformity, shell thickness, kernel size, kernel extraction rate, empty shells, and damaged fruits. Among these, shell thickness, kernel size, and kernel extraction rate are categorized into thick-shelled and thin-shelled varieties. Compared with traditional thick-shelled walnuts, thin-shelled varieties such as Xiangling, Qiangtelle, and Luguo 4 and 5 have advantages of early maturity, high yield, and high kernel extraction rate, but their prices are more than double those of thick-shelled walnuts. Currently, over 90% of walnuts in Fei County are thin-shelled, making Fei County a national leader in promoting thin-shelled walnuts. However, the current standards (GB/T 20398-2006 and DB37/T 3296.6-2018) still focus on thick-shelled walnuts. The "Quality Grading of Thin Shell Walnut Kernels" (LY/T 2703-2016) primarily applies to American walnuts and is not suitable for Fei County walnut varieties. The indicators in this section were primarily determined based on local walnut production practices and references such as the *Chinese Fruit Tree Atlas* and the *Linyi Fruit and Tea Atlas*. 3.3 Grade Tolerance