GB/T 12901-2026Gum turpentine (English PDF)

Foreword

This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part

1.Structure and Drafting Rules of Standardization Documents". Drafting. This document supersedes GB/T 12901-2006 "Grease Turpentine Oil" and GB/T 31756-2015 "Heavy Turpentine Oil". This document is based on... Based on GB/T 12901-2006, it integrates the content of GB/T 31756-2015.Compared with GB/T 12901-2006, except for structural adjustments... Aside from integration and editorial changes, the main technical changes are as follows:

---The technical requirements have been revised, specifying the technical indicators for turpentine oil products separately for different pine species (see Chapter 4,.2006 edition). Chapter 4);

---The platinum-cobalt color code for premium-grade products has been changed from "<=35" to "<=30" (see Chapter 4, Chapter 4 of the.2006 edition);

---The acid value index of Grade I wetland pine turpentine oil has been changed from "<=1.00" to "<=2.00" (see 4.2,.2006 edition). (4 chapters)

--- "Optical rotation" has been added as an "optional test item" (see Chapter 4);

---The factory inspection procedures have been revised, with different inspection items specified for different pine varieties (see 7.1.2,

6.1.1 in the.2006 edition);

---The factory inspection items for turpentine oil products have been changed from "appearance, color, initial boiling point, and boiling range" to "appearance, color, and pinene." Content, monoterpene content, initial boiling point, and distillate volume percentage (see 7.1.2,

6.1.1.1 in the.2006 edition);

---The batching rules have been changed (see 7.2,

6.3 in the.2006 version). Please note that some content in this document may involve patents. The issuing organization of this document assumes no responsibility for identifying patents. This document was proposed by the National Forestry and Grassland Administration. This document is under the jurisdiction of the National Technical Committee on Standardization of Forest Chemical Products (SAC/TC558). This document was drafted by: Research Institute of Forest Products Chemistry and Industry, Chinese Academy of Forestry; Guangxi Wuzhou Richeng Forest Products Chemical Co., Ltd. Company, Fujian Nanping Qingsong Chemical Co., Ltd., Xiamen Zhongkun Chemical Co., Ltd., Yunnan Linyuan Fragrance Co., Ltd., Wuzhou Huangpu Chemical Pharmaceutical Co., Ltd. Limited Liability Company, Huaiji County Changlin Chemical Co., Ltd., Puer City Simao District Sensheng Forestry Chemical Co., Ltd., Guangdong Xingguang Resin Technology Co., Ltd. Limited Liability Company, Shaoguan Linhe Forest Products Technology Co., Ltd., Guangdong Weisida New Materials Co., Ltd., Guangzhou Jingjiu Technology Consulting Service Co., Ltd. The main drafters of this document are. Wang Jing, Zhao Zhendong, Chen Yuxiang, Chen Suhua, Gu Yan, Bi Liangwu, Yang Hejian, Gong Shihai, Deng Xingu, and Yang Bin. You Huajun, Zhang Chao, Zhu Qingbing, Li Haibing, Song Lifeng, Chen Yuanxin, Cai Dongming, Xie Yuxiang, Lin Qiuju. The release history of this document and the document it replaces is as follows:

---First published in.1991 as GB/T 12901-1991, and revised for the first time in.2006;

---This is the second revision, which integrates the content of GB/T 31756-2015. turpentine oil

1 Scope

GB/T 12901-2026 is the Chinese national standard covering turpentine distilled from pine oleoresin - the grades, the density and refractive index, the alpha-pinene content and the residue, on a natural product that is the feedstock for fragrance and terpene chemistry. It replaces GB/T 12901-2006 and has been in force since 1 September 2026, under the National Forestry and Grassland Administration. It was issued on 27 February 2026 and has been in force since 1 September 2026, replacing GB/T 12901-2006. This page is published from the official record of the 2026 edition; the clause text of a standard this recent is not yet in circulation, and the figures, limits and tables it contains are those of the document itself, delivered in full with the English translation.

This document specifies the technical requirements, sampling, inspection rules, grading, marking, packaging, transportation, and storage of turpentine oil, and describes the corresponding... The experimental method. This document applies to turpentine products made from pine resin collected from living pine trees through distillation and other methods.

4 Technical Requirements

4.1 Turpentine from Masson Pine and Pinus simonii Turpentine from Masson pine and Simao pine is divided into two grades. superior and first grade. The technical indicators of each grade of product should meet the requirements of Table 1.

4.2 Turpentine from wetland pine Slash pine turpentine is divided into two grades. superior and first grade. The technical specifications of each grade of product should meet the requirements of Table 2.

4.3 Other pine species turpentine Turpentine from other pine species is classified into superior, first-grade, and second-grade, and the technical specifications of each grade of product should meet the requirements of Table 3.

4.4 Heavy Turpentine Heavy turpentine is divided into two grades. grade 60 and grade

45.The technical specifications of each grade of product should meet the requirements of Table 4.

5.Sampling According to GB/T 6680, at least 1000 mL of sample should be taken from the same batch of products, and the sample volume from each package should be... Mix the ingredients thoroughly and divide them into two equal portions. One portion will be used for testing, and the other portion will be placed in a dark glass bottle or other container with equivalent storage conditions. Store in a sealed container and keep a sample for future reference.

6.Test Methods The determination of various parameters of turpentine oil shall be carried out in accordance with the provisions of GB/T 12902.