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GB/T 15972.33-2024: Specifications for optical fibre test methods - Part 33: Measurement methods and test procedures for mechanical characteristics - Stress corrosion susceptibility
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Specifications for optical fibre test methods - Part 33: Measurement methods and test procedures for mechanical characteristics - Stress corrosion susceptibility
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GB/T 15972.33-2024
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| GB/T 15972.33-2008 | English | 649 |
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Specifications for optical fibre test methods -- Part 33: Measurement methods and test procedures for mechanical characteristics -- Stress corrosion susceptibility
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GB/T 15972.33-2008
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PDF similar to GB/T 15972.33-2024
Basic data | Standard ID | GB/T 15972.33-2024 (GB/T15972.33-2024) | | Description (Translated English) | Specifications for optical fibre test methods - Part 33: Measurement methods and test procedures for mechanical characteristics - Stress corrosion susceptibility | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | M33 | | Classification of International Standard | 33.180.10 | | Word Count Estimation | 38,313 | | Date of Issue | 2024-11-28 | | Date of Implementation | 2025-03-01 | | Older Standard (superseded by this standard) | GB/T 15972.33-2008 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 15972.33-2024: Specifications for optical fibre test methods - Part 33: Measurement methods and test procedures for mechanical characteristics - Stress corrosion susceptibility
---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.
ICS 33.180.10
CCSM33
National Standard of the People's Republic of China
Replaces GB/T 15972.33-2008
Specification for optical fiber test methods Part 33.
Measurement methods and test procedures for mechanical properties
Stress Corrosion Sensitivity Parameters
(IEC 60793-1-33.2017,Opticalfibres-Part 1-33.Measurementmethods
Published on 2024-11-28 Implemented on 2025-03-01
State Administration for Market Regulation
The National Standardization Administration issued
Table of Contents
Preface III
Introduction V
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 Symbols 1
5 Method Overview 1
6 Test Environment 2
7 Specimens and samples 2
8 Test Procedure 2
9 Calculation 3
10 Results 2
Appendix A (normative) Dynamic n value (nd) measured by axial tension method 4
Appendix B (Normative) Two-point bending method for measuring dynamic n value (nd) 10
Appendix C (normative) Static n value (ns) measured by axial tension method 14
Appendix D (Normative) Static n value (ns) measured by two-point bending method 17
Appendix E (Normative) Static n value (ns) measured by uniform bending method 19
Appendix F (Informative) Considerations for Calculation of Dynamic Stress Corrosion Sensitivity Parameters 21
Appendix G (Informative) Considerations for Calculation of Static Stress Corrosion Sensitivity Parameters 24
Appendix H (Informative) Considerations on the test method for stress corrosion sensitivity parameters 25
Reference 28
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 for standardization documents"
Drafting.
This document is part 33 of GB/T 15972 "Specification for optical fiber test methods". GB/T 15972 has been published in the following 25 parts.
--- Part 10.General principles for measurement methods and test procedures;
--- Part 20.Measurement methods and test procedures for dimensional parameters Optical fiber geometric parameters;
--- Part 21.Measurement methods and test procedures for dimensional parameters --- Coating geometric parameters;
--- Part 22.Measurement methods and test procedures for dimensional parameters --- Length;
--- Part 30.Measurement methods and test procedures for mechanical properties. Optical fiber screening tests;
--- Part 31.Measurement methods and test procedures for mechanical properties Tensile strength;
--- Part 32.Measurement methods and test procedures for mechanical properties. Strippability of coatings;
--- Part 33.Measurement methods and test procedures for mechanical properties Stress corrosion sensitivity parameters;
--- Part 34.Measurement methods and test procedures for mechanical properties of optical fiber warping;
--- Part 40.Measurement methods and test procedures for transmission characteristics attenuation;
--- Part 41.Measurement methods and test procedures for transmission characteristics bandwidth;
--- Part 42.Measurement methods and test procedures for transmission characteristics Wavelength dispersion;
--- Part 43.Measurement methods and test procedures for transmission characteristics Numerical aperture;
--- Part 44.Measurement methods and test procedures for transmission characteristics and optical properties Cut-off wavelength;
--- Part 45.Measurement methods and test procedures for transmission characteristics Mode field diameter;
--- Part 46.Measurement methods and test procedures for transmission and optical properties --- Changes in transmittance;
--- Part 47.Measurement methods and test procedures for transmission characteristics Macrobending losses;
--- Part 48.Measurement methods and test procedures for transmission characteristics and optical properties Polarization mode dispersion;
--- Part 49.Measurement methods and test procedures for transmission characteristics Differential mode delay;
--- Part 50.Measurement methods and test procedures for environmental performance --- Steady state damp heat;
--- Part 51.Measurement methods and test procedures for environmental performance --- Dry heat;
--- Part 52.Measurement methods and test procedures for environmental performance --- Temperature cycling;
--- Part 53.Measurement methods and test procedures for environmental performance --- Immersion in water;
--- Part 54.Measurement methods and test procedures for environmental performance Gamma irradiation;
--- Part 55.Measurement methods and test procedures for environmental properties. Hydrogen aging
This document replaces GB/T 15972.33-2008 "Optical Fiber Test Methods Specification Part 33.Measurement Methods and Tests for Mechanical Properties"
Compared with GB/T 15972.33-2008, in addition to structural adjustments and editorial changes, the main technical
The technical changes are as follows.
a) Changed the applicable fiber types in the “scope” to include A3 multimode fiber and C single-mode fiber (see Chapter 1,.2008 edition).
Chapter 1 of);
b) The provisions of the benchmark test method have been changed, and the provision of the axial tension method as the benchmark test method has been cancelled.
To be studied (see Chapter 5, Chapter 3 of the.2008 edition);
c) The value of the gauge length in the schematic diagram of the tensile test device has been changed (see Figure A.1, Figure A.1 of the.2008 edition);
d) Changed the formula for fracture stress, the formula for median fracture stress with constant stress rate, the intercept formula and the fracture stress dependence
Dynamic fatigue curve of stress rate [see formula (A.2), formula (A.7), formula (A.8), Figure A.4,.2008 version of formula (A.2), formula
(A.7), formula (A.8), Figure A.4];
e) Added the typical value of Young's modulus of quartz glass (see B.5.1);
f) The formula for the variation of median fracture stress with constant platen speed, intercept formula and dynamic fatigue data graph have been modified [see formula (B.5), formula
(B.6), Figure B.3,.2008 edition of formula (B.5), formula (B.6), Figure B.3];
g) The requirement that the results should include “fitting parameters md, median fracture stress and σ0” has been deleted (see B.6 of the.2008 edition);
h) Added detailed requirements for optical fiber diameter (see B.6);
i) The linear regression formula and intercept formula have been changed [see formula (C.1), formula (C.2), formula (C.1), formula (C.2) of the.2008 edition];
j) The schematic diagram of the two-point bending static fatigue device has been changed (see Figure D.1, Figure D.1 of the.2008 edition);
k) The formula for the numerical algorithm of the dynamic stress corrosion sensitivity parameter nd has been changed (see F.2, F.2 of the.2008 edition);
l) The method for calculating the fracture stress has been changed (see F.3, F.3 of the.2008 edition);
m) The variance and covariance formulas of the homology method have been changed (see G.1, G.1 of the.2008 edition);
n) Modified the series test results graph of breaking strength versus “effective” breaking time and added the explanation of the graph (see Appendix H,.2008
Appendix H of this edition).
This document is modified to adopt IEC 60793-1-33.2017 "Optical Fibers Part 1-33.Measurement Methods and Test Procedures Stress Corrosion Susceptibility".
This document has made the following structural adjustments compared to IEC 60793-1-33.2017.
---Added Chapter 4 symbols;
--- Chapter 5 corresponds to Chapter 1, Chapter 4, Chapter 5, Chapter 6 and part of 7.3 of IEC 60793-1-33.2017;
--- Chapter 6 corresponds to part of 7.3 of IEC 60793-1-33.2017;
--- Chapter 7 corresponds to parts of 7.1, 7.2 and 7.3 in IEC 60793-1-33.2017;
--- Chapter 10 corresponds to Chapter 10 and Chapter 11 of IEC 60793-1-33.2017.
The technical differences between this document and IEC 60793-1-33.2017 and their reasons are as follows.
a) Symbols are added (see Chapter 4) for ease of use;
b) The requirements for the actual test length of the two-point bending test (see 7.2) have been changed to make it applicable to the domestic understanding of the actual test length;
c) The value of the gauge length in Figure A.1 has been changed (see Figure A.1) and the error in the IEC document has been corrected;
d) The units of physical quantities in formula (A.2) [see formula (A.2)] have been changed for ease of use;
e) The numerical algorithm of the dynamic stress corrosion sensitivity parameter nd [see formula (F.8)] was changed, and the error in the IEC document was corrected;
f) The percentage of load borne by the coating layer F [see formula (F.18)] has been changed to make it applicable to multi-layer coatings;
g) The icon explanation of static tension (tensioner) in Figures H.1 and H.2 has been changed to correct the error in the IEC document.
The following editorial changes were made to this document.
--- In order to coordinate with the series of standards, the standard name is changed to "Optical Fiber Test Methods Specification Part 33.Measurement Methods and
Test Procedure Stress Corrosion Sensitivity Parameters";
--- Added the explanation of the platen spacing in B.2.6.2;
--- Added explanation of variance and covariance functions in C.1.
Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.
This document was proposed by the Ministry of Industry and Information Technology of the People's Republic of China.
This document is under the jurisdiction of the National Communications Standardization Technical Committee (SAC/TC485).
This document was drafted by. China Information and Communications Technology Group Co., Ltd., Wuhan Netshine Testing Technology Co., Ltd., Chengdu Tairui Communication Equipment Co., Ltd.
Bei Testing Co., Ltd., Beijing University of Posts and Telecommunications.
The main drafters of this document are. Liu Cheng, Hu Guyue, Song Zhituo, Li Chunsheng, Xu Jiangbo, Zuo Qionghua, Wang Yawen, Ni Haibin, Guo Hao, Li Xiangdong,
Zhang Jian, Lu Han.
The previous versions of this document and the documents it replaces are as follows.
--- Chapter 12 to Chapter 17 and Appendix A and Appendix B of GB/T 15972.3-1998;
---GB/T 15972.33-2008.
Introduction
The characteristic parameters of optical fiber include size parameters, mechanical performance parameters, transmission characteristic parameters and environmental performance parameters. Each category includes
There are many parameters. The test principles, equipment and procedures of these parameters are different. Therefore, they need to be divided according to their respective parameters and written separately.
GB/T 15972 is planned to consist of 25 parts.
--- Part 10.General principles for measurement methods and test procedures. The purpose is to provide general basic requirements for optical fiber testing.
--- Part 20.Measurement methods and test procedures for dimensional parameters Optical fiber geometric parameters. The purpose is to give the measurement methods and test procedures for dimensional parameters of optical fiber geometric parameters.
Trial method;
--- Part 21.Measurement methods and test procedures for dimensional parameters Coating geometric parameters. The purpose is to give the optical fiber coating geometry.
What parameter test method?
--- Part 22.Measurement methods and test procedures for dimensional parameters. The purpose is to give the optical fiber length test method;
--- Part 30.Measurement methods and test procedures for mechanical properties Optical fiber screening test. The purpose is to give the measurement methods and test procedures for optical fiber screening test.
Trial method;
--- Part 31.Measurement methods and test procedures for mechanical properties Tensile strength. The purpose is to give the tensile strength test method for optical fibers
method;
--- Part 32.Measurement methods and test procedures for mechanical properties Coating strippability. The purpose is to give the strippability of optical fiber coatings.
Sex testing methods;
--- Part 33.Mechanical properties measurement methods and test procedures Stress corrosion sensitivity parameters. The purpose is to give the optical fiber stress
Sensitivity parameter testing methods;
--- Part 34.Measurement methods and test procedures for mechanical properties of optical fiber warping. The purpose is to give the optical fiber warping test method;
--- Part 40.Measurement methods and test procedures for transmission characteristics attenuation. The purpose is to give the optical fiber attenuation test method;
--- Part 41.Measurement methods and test procedures for transmission characteristics Bandwidth. The purpose is to provide a method for testing optical fiber bandwidth;
--- Part 42.Transmission characteristics measurement methods and test procedures wavelength dispersion. The purpose is to give the optical fiber wavelength dispersion test
method;
--- Part 43.Measurement methods and test procedures for transmission characteristics Numerical aperture. The purpose is to give the numerical aperture test of optical fiber
method;
--- Part 44.Transmission characteristics and optical properties of the measurement methods and test procedures Cut-off wavelength. The purpose is to give the fiber cut-off wavelength.
Wavelength test method;
--- Part 45.Transmission characteristics measurement methods and test procedures Mode field diameter. The purpose is to give the optical fiber mode field diameter test
method;
--- Part 46.Transmission characteristics and optical properties measurement methods and test procedures Transmittance change. The purpose is to give the optical fiber transmission
Light rate variation test method;
--- Part 47.Measurement methods and test procedures for transmission characteristics Macrobending loss. The purpose is to give the optical fiber macrobending loss test method
method;
--- Part 48.Measurement methods and test procedures for transmission characteristics and optical properties Polarization mode dispersion. The purpose is to give the polarization mode dispersion of optical fibers.
Mode dispersion test method;
--- Part 49.Measurement methods and test procedures for transmission characteristics Differential mode delay. The purpose is to give the measurement methods and test procedures for differential mode delay of optical fibers.
Trial method;
--- Part 50.Measurement methods and test procedures for environmental performance, constant humidity and heat. The purpose is to give the constant humidity and heat test method for optical fiber
method;
--- Part 51.Measurement methods and test procedures for environmental performance Dry heat. The purpose is to give the optical fiber dry heat test method;
--- Part 52.Environmental performance measurement methods and test procedures Temperature cycling. The purpose is to give the optical fiber temperature cycle test
method;
--- Part 53.Measurement methods and test procedures for environmental performance - Water immersion. The purpose is to provide a test method for optical fiber immersion in water;
--- Part 54.Measurement methods and test procedures for environmental performance Gamma irradiation. The purpose is to give the optical fiber gamma irradiation test
method;
--- Part 55.Measurement methods and test procedures for environmental performance Hydrogen aging. The purpose is to give the optical fiber hydrogen aging test method.
Specification for optical fibre test methods Part 33.Mechanical
Performance measurement methods and test procedures Stress
Corrosion sensitivity parameters
1 Scope
This document specifies five test methods for determining stress corrosion sensitivity parameters and establishes the stress corrosion sensitivity parameters for silica optical fibers.
Uniform test procedures and technical requirements for numerical measurements.
This document applies to A1 multimode optical fiber, A2 multimode optical fiber, A3 multimode optical fiber, B single-mode optical fiber and C single-mode optical fiber.
Stress corrosion susceptibility parameters are measured. Other types of silica optical fibers are used as reference.
2 Normative references
This document has no normative references.
3 Terms and definitions
There are no terms or definitions that require definition in this document.
4 Symbols
The following symbols apply to this document.
5 Method Overview
Dynamic fatigue tests and static fatigue tests are usually used to determine stress corrosion sensitivity parameters, which are called dynamic n value (nd) and static
State n value (ns).
Only the dynamic n value is specified in the product standard. The dynamic n value obtained by testing according to the test procedures specified in this document is considered to be
The interval may be different from the true value to a certain extent. The dynamic n value, Weibul slope md and the sample size at each strain rate are
Typical confidence intervals for these combinations are shown in Table F.1.Higher dynamic n values do not directly prove that the fiber has stronger fatigue resistance.
Mechanical testing of silica optical fibers should determine the fracture stress and fatigue properties under conditions that are as close as possible to actual application.
There are five test methods.
--- Method A. Dynamic n value (nd) test method under axial tension;
--- Method B. Dynamic n value (nd) test method under two-point bending;
--- Method C. Static n value (ns) test method under axial tension;
--- Method D. Static n value (ns) test method under two-point bending;
--- Method E. Static n value (ns) test method under uniform bending.
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