GB/T 5752-2002

📋 Scope / 适用范围 ai_extracted

This standard specifies the marking content, marking dimensions, and marking positions of conveyor belts. This standard is applicable to all types of conveyor belts.

📝 Foreword / 前言 ai_extracted

This standard is equivalent to the international standard ISO 433:1991 (Conveyor belts — Marking) and serves as a revision of the national standard GB/T 5752-1992 (Conveyor belts — Marking). The main differences between this standard and ISO 433:1991 are as follows: — This standard supplements the letter codes for belt carcass materials based on the final draft international standard ISO/FDIS 14890:1999 (Conveyor belts — Specification for rubber- or plastics-covered conveyor belts of textile construction for general use). The main differences between this standard and GB/T 5752-1992 are as follows: — This standard cancels the letter codes for basic belt properties such as U, Q, Y, T, C, M, and A, which were present in the original standard but not in ISO 433. — This standard adopts the letter codes for belt carcass materials as specified in ISO/FDIS 14890, whereas the letter codes in the original standard were self-defined. — The original standard specified that the longitudinal distance between two markings should be less than 25 m. This standard equivalently adopts ISO 433, specifying that the longitudinal distance between two markings should be less than 15 m. Upon implementation of this standard, it replaces GB/T 5752-1992. This standard is proposed by the State Petroleum and Chemical Industry Bureau. This standard is under the jurisdiction of the Chemical Industry Rubber Belt Standardization Technical Committee. This standard is drafted by Tongxiang Shuangjian Group Co., Ltd. The main drafters of this standard are: Shen Gengliang, Shen Weiming, Han Deshen, and Li Jian. GB/T 5752-2002 ISO Foreword The International Organization for Standardization (ISO) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75% of the member bodies casting a vote. International Standard ISO 433 was prepared by Technical Committee ISO/TC 41, Pulleys and belts (including V-belts). This second edition cancels and replaces the first edition (ISO 433:1982), of which it constitutes a technical revision. National Standard of the People's Republic of China GB/T 5752-2002 Conveyor belts — Marking Replaces GB/T 5752-1992

📚 References & Relations / 引用与关联

🔗 Related Standards / 同类标准