This standard specifies the general requirements, classification and packaging of optical fibers. This standard applies to primary coated optical fibers or optical fibers with buffer layers used in communication equipment and devices using similar technologies. GB/T 15972.1-1998 General Specification for Optical Fibers Part 1: General Principles GB/T15972.1-1998 Standard download decompression password: www.bzxz.net

National Standard of the People's Republic of China
GB/T15972.1—1998
eqvIEc793-1-11995
Generic specification for optical fibresPart 1:General
Issued on December 21, 1998
Implementation on July 1, 1999
State Administration of Quality and Technical Supervision
GB/T15972.1—1998
This standard is equivalent to the International Electrotechnical Commission IEC793-1-1:1995 "Optical fibre: Part 1: General specification Part 1: General provisions" to revise the relevant provisions of GB/T11819—1989 "General requirements for optical fibres" and GB/T15972—1995 "General specification for optical fibres". In this way, my country's national standards for optical fiber are consistent with international standards to meet the needs of the rapid development of international technical exchanges and trade in this field.
GB/T15972-1998 includes five parts under the general title of "General Specification for Optical Fiber": Part 1 (i.e. GB/T15972.1): General Principles Part 2 (i.e. GB/T15972.2): Test methods for dimensional parameters Part 3 (i.e. GB/T15972.3): Test methods for mechanical properties Part 4 (i.e. GB/T15972.4): Test methods for transmission characteristics and optical characteristics Part 5 (i.e. GB/T15972.5): Test methods for environmental performance This standard is Part 1.
Appendix A of this standard is a prompt appendix.
This standard replaces GB/T11819-1989 and GB/T15972-1995 from the date of implementation. This standard is jointly proposed by the Ministry of Posts and Telecommunications and the Ministry of Electronics Industry of the People's Republic of China. This standard is under the jurisdiction of the Telecommunications Science Research and Planning Institute of the Ministry of Posts and Telecommunications. The drafting units of this standard are: Wuhan Post and Telecommunications Science Research Institute of the Ministry of Posts and Telecommunications, and Shanghai Transmission Line Research Institute of the Ministry of Electronics Industry. The main drafters of this standard are: Chen Yongshi, Liu Zeheng, Wu Jinliang, and Chen Guoqing. I
GB/T15972.1—1998
IEC Foreword
1) IEC (International Electrotechnical Commission) is a worldwide standardization organization that includes all national electrotechnical committees (IEC National Committees). The goal of IEC is to promote international cooperation on all standardization issues involved in the electrical and electronic fields. To this end, among other activities, EC publishes international standards. The formulation of standards is entrusted to technical committees. Any EC National Committee interested in the content can participate in this formulation work. International, governmental and non-governmental organizations that have ties with IEC can also participate in the formulation work. IEC and the International Organization for Standardization (ISO) work closely together under conditions agreed upon by both parties. 2) The formal resolutions or agreements of the EC on technical issues are made by technical committees in which national committees with special concerns about these issues participate, and represent the international consensus on the issues involved as far as possible. 3) These resolutions or agreements should be published in the form of standards, technical reports or guidelines as recommendations for international application and accepted by the national committees in this sense.
4) In order to promote international unification, IEC national committees have the responsibility to make their national and regional standards adopt IEC international standards as far as possible. Any differences between national or regional standards and IEC standards should be clearly indicated in the national or regional standards. International standard IEC793-1-1 was developed by Subcommittee 86A (Fiber Optic Cable) of IEC Technical Committee 86 (Fiber Optics).
The 4th edition of IEC793-1 issued in 1992 has been revised. It is divided into five standards, each of which consists of one article. The first edition of IEC793-1-1 cancels and replaces the first article of IEC793-1, forming a revised version with minor changes. This standard should be used in conjunction with the following standards: IEC793-1-2: 1995 Optical fiber Part 1: General specification Part 2: Dimensional parameters test methods IEC793-1-3: 1995 Optical fiber Part 1: General specification Part 3: Mechanical properties test methods IEC793-1-4: 1995 Optical fiber Part 1: General specification Part 4: Transmission characteristics and optical characteristics test methods IEC793-1-5: 1995 Optical fiber Part 1: General specification Part 5: Environmental performance test methods This standard text is based on the following documents: Draft International Standard
86A/300/DIS
Voting Report
86A/326/RVD
Voting Approval All information on this standard can be found in the voting report listed in the table above. Appendix A is a prompt appendix.
1 Scope
National Standard of the People's Republic of China
Generic specification for optical fibres
Part 1: General
This standard specifies the general requirements, classification and packaging of optical fibres GB/T15972.1—1998
eqvIEC 793-1-1:1995
Replaces GB/T11819—1989
GB/T15972—1995
5 Part
This standard applies to primary coated optical fibres or optical fibres with buffer layer used in communication equipment and devices using similar technologies. 2 Referenced standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB191—1990 Pictorial symbols for packaging, storage and transportation
GB/T4892—1996 Dimension series for rigid rectangular transport packaging (eqVISO3394:1984) GB/T5048—1985 Moisture-proof packaging
GB/T15972.2—-1998 General specification for optical fiber Part 2: Test methods for dimensional parameters GB/T15972.3—1998
GB/T15972.4—1998
Part 3: Test methods for mechanical propertiesbZxz.net
General specification for optical fiber
General specification for optical fiber Part 4: Test methods for transmission characteristics and optical characteristics GB/T15972.5—1998 General specification for optical fiber Part 5: Test methods for environmental performance 3 Definitions
Under consideration.
4 Fiber Classification
4.1 Class A - Multimode Optical Fiber
Multimode optical fiber is classified according to the refractive index distribution index and the optical fiber material (see Table 1). The normalized refractive index distribution is expressed as: ()=1-r
where; 8(z)=n(a)-n(1)
, relative refractive index difference,
n（0)-n（1）
n(a)——The refractive index at, =(0
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