GB/T 339-2001

📋 Scope / 适用范围 ai_extracted

This standard specifies the requirements, test methods, inspection rules, marking, packaging, transportation, storage, and safety for synthetic phenol for industrial use. This standard applies to synthetic phenol for industrial use produced by the cumene method and the sulfonation method. This product serves as a raw material for the production of dyes, synthetic resins, plastics, synthetic fibers, and pesticides. OH Relative molecular mass: 94.11 (based on 1997 international relative atomic masses)

📝 Foreword / 前言 ai_extracted

This standard is equivalent to the American Society for Testing and Materials standard ASTM D 2439-1996 "Refined Phenol" and serves as a revision of GB 339-1989 "Technical Synthetic Phenol". Compared with ASTM D 2439-1996, the ASTM D 2439-1996 standard does not include the "Solubility Test" item and does not classify product grades. This standard includes the "Solubility Test" item and divides the product into three grades: superior grade, first grade, and qualified grade, among which the specifications for the superior grade are identical to those of ASTM D 2439-1996. Compared with GB 339-1989: The "Water" specification for the superior grade has been revised from ≤0.1% to ≤0.10%; the first grade has added the "Water" specification, with a specification of ≤0.10%; the "Crystallization Point" specification for the qualified grade has been revised from ≥40.0°C to ≥40.2°C; the appearance has been revised from "Superior grade and first grade: colorless needle-like or white crystals; qualified grade: may allow slight reddish or yellowish color" to "Molten liquid or crystalline solid, free from sediment and turbidity". The "Evaporation Residue" item has been removed. The item name "Solubility in Water" has been revised to "Solubility Test". Safety clauses have been added. This standard replaces GB 339-1989 "Technical Synthetic Phenol" from the date of implementation. This standard is proposed by the State Petroleum and Chemical Industry Bureau. This standard is under the jurisdiction of the Organic Subcommittee of the National Chemical Standardization Technical Committee. Drafting organization of this standard: Chemicals Division, Beijing Yanshan Petrochemical Co., Ltd. Participating drafting organizations of this standard: Baotou Tomorrow Technology Co., Ltd., Gaoqiao Chemical Plant of Shanghai Gaoqiao Petrochemical Company, Harbin Huayu Co., Ltd. Main drafters of this standard: Zhou Shiwang, Zhao Bing. This standard was first issued in 1964, first revised in March 1982, and second revised in March 1989. Interpretation of this standard is entrusted to the Organic Subcommittee of the National Chemical Standardization Technical Committee. National Standard of the People's Republic of China GB/T 339-2001 Synthetic Phenol for Industrial Use Replaces GB 339-1989

📚 References & Relations / 引用与关联

🔗 Related Standards / 同类标准