1、STD-EIA TIA/EIA-455-1bA-ENGL 1991 II 3234b00 Ob57437 152 2 TIMEIA STANDARD ANSI/TIA/EIA-455-16A-1991 Approved: September 16, 1991 Reaffirmed: May 19, 2000 FOTP-16 Salt Spray (Corrosion) Test for Fiber Optic Components TIAIEIA-455-16A OCTOBER 1991 TELECOMMUNICATIONS INDUSTRY ASSOCIATION Copyright Ele
2、ctronic Industries Alliance Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,- STD=EIA TIAiEIA-455-LbA-ENGL L99L m 323Lib00 Ob59940 979 m NOTICE TINEIA Engineering Standards and Publications are designed to serve the public inter
3、est through eliminating misunderstandings between manufacturers and purchasers, facilitating interchangeability and improvement of products, and assisting the purchaser in selecting and obtaining with minimum delay the proper product for his particular need. Existence of such Standards and Publicati
4、ons shall not in any respect preclude any member or nonmember of TIA/EIA from manufacturing or selling products not conforming to such Standards and Publications, nor shall the existence of such Standards and Publications preclude their voluntary use by those other than TINEIA members, whether the s
5、tandard is to be used either domestically or internationally. Standards and Publications are adopted by TIALEIA in accordance with the American National Standards Institute (ANSI) patent policy. By such action, TINEM does not assume any liability to any patent owner, nor does it assume any obligatio
6、n whatever to parties adopting the Standard or Publication. This Standard does not purport to address all safety problems associated with its use or all applicable regulatory requirements. it is the responsibility of the user of this Standard to establish appropriate safety and health practices and
7、to determine the applicability of regulatory limitations before its use. (From Standards Proposal No. 3806, formulated under the cognizance of the TIA FO-6.3 Subcommittee on Fiber Optic Interconnecting Devices.) This Document was reaffirmed by the American National Standards Institute (ANSI) on May
8、19,2000, and by the TIA. Published by OTELECOMMUNICATIONS INDUSTRY ASSOCIATION 199 1 Standards and Technology Department 2500 Wilson Boulevard Arlington, VA 22201 PRICE: Please refer to current Catalog of PUBLICATIONS or call Global Engineering Documents, USA and Canada (1-800-854-7179) Internationa
9、l (303-397-7956) EIA ELECTRONIC INDUSTRIES ALLIANCE STANDARDS and ENGINEERING All rights reserved Printed in U.S.A. Copyright Electronic Industries Alliance Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,- STD-EIA TIA/EIA-455-L
10、bA-ENGL 1971 E 3234600 Ub57LiLiL 800 = FOTP-16 SALT SPRAY (CORROSION) TEST FOR FIBER OPTIC COMPONENTS TABLE OF CONTENTS section 1. 2. 3. 4. 5. 6. 7. 8. APPENDIX A INTRODUCTION APPLICABLE DOCUMENTS APPARATUS SAMPLING AND SPECIMENS PROCEDURE CALCULATIONS OR INTERPRETATION OF RESULTS DOCUMENTATION SPEC
11、IFICATION INFORMATION APPLICATION OF THE METHOD APPENDIX B COMPARISON BETWEEN FOTP-16 AND IEC, ISO, AND CCITT REQUIREMENT Figure 1 Salt Solution Filter Figure 2 Location Of Salt Solution Filter Figure 3 Variations Of Specific Gravity Of Salt (NaCi) Solution With Temperature Paqe 1 2 3 8 8 12 12 13 1
12、4 15 6 6 7 Copyright Electronic Industries Alliance Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,- STD-EIA TIA/EIA-455-LbA-ENGL 1991 3234b0 Ob57442 747 EIA/TIA-455-16A Page 1 SALT SPRAY (CORROSION) TEST FOR FIBW OPTIC COMPONE
13、NTS (From EIA Standards Proposal No. 2138, formulated under the cognizance of TIA FO-6.3, Subcommittee on Fiber Optic Interconnecting Devices, and TIA FO-6.4, Subcommittee on Fiber Optic Test Methods and Instrumentation.) This FOTP is part of the series of test procedures included within Recommended
14、 Standard EIA/TIA-455. NOTE : This FOTP was originally published in FOTP-16. EIA RS-455-16 as 1. INTRODUCTION 1.1 Purpose, The purpose of this test is to determine the effects of a controlled salt-laden atmosphere on Fiber Optic device components, finishes and mechanisms. Typical effects of this tes
15、t include, but are not limited to: (a) Exposure of base metals, pitting and porosity of finishes. (b) Cracking and delamination of components or finishes, or both. (c) Abnormal nicks, cracks or scratches on finished surfaces that indicate the removal of the normal protective coating. (d) Change of o
16、ptical transmittance or insertion loss values, or change of electrical properties. 1.2 Similar Methods. Note that the intent and methodology of this test are essentially the same as those of (a) EIA RS-186-5E (Type II Test), (b) ASTM B 117, (cl MIL-STD-202F, Method 101D, and (d) MIL-STD-l344A, Metho
17、d 1001.1, but specifically address the testing of fiber optic components. All of the methods are practically the same, but much of the text is adapted from the two MIL standards (which are essentially identical). Refer also to Appendix B for a discussion of comparisons with the IEC method . Copyrigh
18、t Electronic Industries Alliance Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-STD-EIA TIA/EIA-955-LbA-ENGL 1991 3239b00 Ob57993 b83 EIA/TIA-455-16A Page 2 2. APPLICABLE DOCUMENTS The following documents form a part of this F
19、OTP to the extent specif ied herein: EIA/TIA-455-A FOTP-13 (EIA-455-13) FOTP-20 (EIA/TIA-455-20A) FOTP-34 (EIA/TIA-455-34A) EIA RS-186-5E Method 5 3 Method 101D MIL-STD-202F MIL-STD-1344A3 Method 1001.1 ASTM B 117-90 IEC 68-2-11, 3rd Ed. “Standard Test Procedures for Fiber Optic Fibers, Cables, Tran
20、sducers, Sensors, Connecting and Terminating Devices, and Other Fiber Optic Components I Visual and Mechanical Inspection of Fiber Optic Components, Devices and Assemblies“ “Measurement of Change in Optical Transmit tance“ “Interconnection Device Insertion Loss Test“ “Standard Test Methods for Passi
21、ve Electronic Component Parts“ “Salt Spray (Corrosion) “Test Methods for Electronic and Electrical Component Parts“ “Salt Spray ( Corrosion) I “Test Methods for Electrical Connectors“ “Salt Spray (corrosion) “Standard Method of Salt Spray (Fog) Testing“ “Test Ka : Sa 1 t Mi c t In process of prepara
22、tion. Pending publication of this revision, use EIA RS-455-20. In process of preparation. Pending publication of this revision, use EIA-455-34. Available from Standardization Documents Order Desk, Bldg. 4D, 700 Robbins Avenue, Philadelphia, PA 19111-5094, or from the procuring activity, or as direct
23、ed by the contracting officer. Copyright Electronic Industries Alliance Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-STD-EIA TIA/EIA-455-LhA-ENGL L99L .sS 3234b00 Ob59444 5LT EIA/TIA-455-16A Page 3 4 CE1 IEC-874-1, 3rd Ed. C
24、E1 IEC 794-1, 2nd Ed. llConnectors for optical fibres and cables, Part 1: Generic Specification“ “Optical fibre cables, Part 1: Generic specification“ 3. APPARATUS Apparatus and equipment used in this salt-spray test generally include the following: a. Exposure chamber, together with associated equi
25、pment for chamber heating and temperature control, and including racks for supporting specimens, b. Salt solution, maintained. in a salt-solution reservoir that is equipped with means for monitoring and maintaining an adequate solution level, c. Means for atomizing the salt solution, including suita
26、ble nozzles and compressed air supply together with a means for humidifying the air at a temperature above the chamber temperature, d. Optical or electrical measuring equipment as required by the FOTPs or other instructions as specified for optical or electrical tests. Additional specific apparatus
27、details follow. 3.1 Exposure chamber, with racks for supporting specimens. The chamber and all accessories shall be made of material that will not affect the corrosiveness of the fog (e.g., glass, hard rubber, plastic). Wood or plywood shall not be used because they are resiniferous. Materials shall
28、 not be used if they contain formaldehyde or phenol in their composition. In addition, all parts that come into contact with test specimens shall be of materials that will not cause electrolytic corrosion. The chamber and accessories shall be so-constructed and arranged that there is no direct impin
29、ging of the spray or dripping of the condensate on the specimens, so that the spray circulates freely about all specimens to the same degree, and that no liquid .that In process of preparation. Pending publication of this revision, use IEC 86B(C0)69, dated July 1989. Copyright Electronic Industries
30、Alliance Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-EIA/TIA-455-16A Page 4 has come into contact with the test specimens returns to the salt-solution reservoir. The chamber shall be properly vented to prevent pressure buil
31、d up and allow uniform distribution of salt spray. The discharge end of the vent shall be protected from strong drafts,which can cause strong air currents in the chamber. 3.2 Chamber-heating means and control. The chamber shall include an appropriate means of heating and of controlling the temperatu
32、re within the specified limits for the required period of time. Satisfactory methods for controlling the temperature accurately include, but are not limited to, (a) housing the apparatus in a properly controlled constant temperature room, (b) thoroughly insulating the apparatus and preheating the ai
33、r to the proper temperature prior to atomization, and (c) jacketing the apparatus and controlling the temperature of the water or of the air used. The use of immersion heaters for the purpose of maintaining the temperature within the chamber is prohibited. 3.3 Salt Solution. The salt-solution concen
34、tration shall be 5 percent. The salt used shall be sodium chloride containing, on the dry basis, not more than 0.1 percent of sodium iodide, and not more than 0.5 percent of total impurities. The 5-percent solution shall be prepared by dissolving 5 ? 1 parts (by weight) of salt in 95 parts (by weigh
35、t) of distilled or other water. Water used in the preparation of the solution shall contain not more than 200 parts per million of total solids. The solution shall be kept free from solids by filtration using a filter as described in 3.5. The solution shall be adjusted to, and maintained at, a speci
36、fic gravity in accordance with Figure 3. The pH of the solution shall be maintained between 6.5 and 7.2, when measured at a temperature of 35+2*C. Before adjusting the pH, gently boil a sample of the solution (e.g., 10 milliliters in a pyrex beaker) for 30 to 60 seconds to remove the CO2, then cool
37、to the specified temperature prior to measuring the sample solution pH. Only diluted chemically pure grade hydrochloric acid or sodium hydroxide shall be used to adjust the pH. Make pH measurements electrometrically at 25OC using a glass electode with a saturated potassium-chloride bridge: alternati
38、vely, a colorimetric method, such as bromothymol blue, may be used provided the results are equivalent to those obtained with the electrometric method. Copyright Electronic Industries Alliance Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license
39、 from IHS-,-,-EIA/TIA-455-16A Page 5 3.4 Salt-solution reservoir with solution-level monitor. An appropriate reservoir for the salt-solution shall be included in the apparatus, together with a means for monitoring the level of salt-solution in the reservoir to assure that an adequate level is mainta
40、ined. 3.5 Solution Filter. A filter fabricated of noncorrosive materials similar to that shown in Figure 1 shall be provided in the supply line and immersed in the reservoir in a manner such as shown in Figure 2. 3.6 Atomizers, The atomizer or atomizers used shall be of such design and construction
41、as to produce a finely divided, wet, dense fog. The atomizing nozzle(s) shall be made of a material that does not react with the salt solution. 3.7 Air supply. The compressed air entering the atomizer(s) shall be free from all impurities such as oil and dirt. Means shall be provided to humidify and
42、warm the compressed air as required to meet the operating conditions. The air pressure shall be suitable to produce a finely divided dense fog with the atomizer(s) used. To ensure against clogging the atomizer(s1 by salt deposition, the air should have a relative humidity of 95 to 98 percent at the
43、point of release from the nozzle. 3.8 Means for humidifying the air at a temperature above the chamber temperature. A satisfactory method to attain the required humidity consists of passing the air in very fine bubbles through a tower containing heated water. The temperature of the tower water shoul
44、d be at least 35OC. The permissible water temperature increases with increasing volume of air and with decreasing heat insulation of the chamber and the temperature of its surroundings, but it should not exceed a value above which an excess of moisture is introduced into the chamber for example, 43O
45、C at an air pressure of 83 kPa (i2 pounds per square inch), or a value which makes it impossible to meet the requirement for operating temperature. 3.9 Optical or Electrical Test Equipment. Use apparatus as described in FOTP-20 for measuring the change in optical transmittance (throughput) of the tr
46、ansmitting fibers, or apparatus as described in FOTP-34 for measuring insertion loss, as directed by the Detail Specification. Use other optical or electrical measuring equipment as may be specified by the Detail Specification. Copyright Electronic Industries Alliance Provided by IHS under license w
47、ith EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-EIA/TIA-455-16A Page 6 RUBBER RETAINING RING To GUSS CLOTH DIAPHRAGM FILTER-GLASS WOOL CLOTH ROLL e INSERT (31.75) RUBBER STOPPER NOTE: Metric equivalents are in parentheses. 5 Figure 1 Salt Solution Filter TO
48、NOZZLES Location 5 of Salt Solution Filter Figure 2 TION (REF) Figures are taken from MIL-STD-1344 (and MIL-STD-202). Copyright Electronic Industries Alliance Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-STD-EIA TIA/EIA-455-
49、LbA-ENGL 1991 3234b00 Ob5744B Lb5 = EIA/TIA-455-16A Page 7 I04 9s w a 86 P W a L W t- ? 68 LO20 1.025 1.030 1.035 LO40 I .O 45 Figure 3 6 Variations of Specific Gravity of Salt (NaCl) Solution With Temperature Figure is taken from MIL-STD-1344 (and MIL-STD-202). Copyright Electronic Industries Alliance Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,
