GB/T 40489-2021 English PDF

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GB/T 40489-2021: Code of practice of chinese lacquer tapping
Status: Valid

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GB/T 40489-2021	199	Add to Cart	3 days	Code of practice of chinese lacquer tapping	Valid

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Basic data

Standard ID: GB/T 40489-2021 (GB/T40489-2021)
Description (Translated English): Code of practice of chinese lacquer tapping
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: B60;B79
Word Count Estimation: 10,150
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 40489-2021: Code of practice of chinese lacquer tapping

---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.
Code of practice of chinese lacquer tapping ICS 65.020.99 CCSB60/79 National Standards of People's Republic of China Technical Regulations for Raw Lacquer Harvesting and Cutting Released on 2021-08-20 2021-12-01 implementation State Administration of Market Supervision and Administration Issued by the National Standardization Management Committee

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents" Drafting. This document was proposed and managed by the All-China Federation of Supply and Marketing Cooperatives. Drafting organizations of this document. All China Supply and Marketing Cooperatives Xi'an Lacquer Coating Research Institute, Shaanxi Xingsenyuan Biological Technology Co., Ltd., Shaanxi Xizhong Hesheng Lacquer Technology Co., Ltd., Shaanxi Leading National Lacquer Culture Industry Co., Ltd. The main drafters of this document. Zhao Rui, He Na, Li Dongxu, Ren Hongyan, Li Yan, Zhang Ming, Zhang Juanni, Zhang Tingting, Zhu Ruifeng, Liu Shuai, Wei Shuonan, Su Hailin, Wang Shijun, Yang Shixin, Zhang Ruiqin, Zhang Feilong. Technical Regulations for Raw Lacquer Harvesting and Cutting

1 Scope

This document specifies terms and definitions related to raw lacquer harvesting, selection of harvesting lacquer trees, technical requirements for harvesting, lacquer cutting procedures, and post-harvesting treatments. Management, storage, transportation, file management and other requirements. This document is applicable to raw lacquer harvesting and production.

2 Normative references

The contents of the following documents constitute the indispensable clauses of this document through normative references in the text. Among them, dated quotations Only the version corresponding to that date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to This document. GB/T 40490 Raw lacquer decoration process terminology

3 Terms and definitions

The following terms and definitions defined in GB/T 40490 apply to this document. 3.1 Alpine paint alpinelacquer Lacquer produced by lacquer trees distributed in the middle and high mountains. 3.2 Lowmountainlacquer Lacquer produced by lacquer trees distributed in low mountains and hilly areas. 3.3 Damuqilacquer Lacquer collected from the bark layer of large trees in high mountains. Note. Big wood urushiol has low content of urushiol, high content of gum and laccase, and strong dryness. 3.4 Xiaomuqilacquer Raw lacquer collected from the bark layer of small trees in low mountains and hilly areas. Note. Small wood lacquer has high content of urushiol, low content of gum and laccase, and poor dryness.

4 Picking and cutting sumac tree selection

4.1 Cutting age Should meet the following requirements. a) The diameter at breast height of the wild sumac is more than 15cm; b) Cultivate large sumac trees from 8 to 10 years old or with a diameter at breast height of more than 10cm; c) Small trees from 5 to 6 years old. ......

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