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RAKSHA MANTRALAYA MINISTRY OF DEFENCE

JOINT SERVICES SPECIFICATION ON ENVIRONMENTAL TEST METHODS FOR ELECTRONIC AND ELECTRICAL EQUIPMENT JSS 55555 : 2000 Revision No.2

MANAKIKARAN NIDESHALAYA RAKSHA UTPADAN TATHA POORTI VIBHAG RAKSHA MANTRALAYA, 'H' BLOCK, DHQ PO NEW DELHI - 110 011 DIRECTORATE OF STANDARDISATION DEPARTMENT OF PRODUCTION & SUPPLIES MINISTRY OF DEFENCE, 'H'- BLOCK, DHQ PO NEW DELHI - 110 011

JSS 55555 : 2000 Revision No. 2 RAKSHA MANTRALAYA MINISTRY OF DEFENCE

JOINT SERVICES SPECIFICATION

ON

ENVIRONMENTAL TEST METHODS FOR ELECTRONIC AND ELECTRICAL EQUIPMENT

JSS 55555 : 2000 Revision No.2

MANAKIKARAN NIDESHALAYA RAKSHA UTPADAN TATHA POORTI VIBHAG RAKSHA MANTRALAYA, 'H' BLOCK, DHQ PO NEW DELHI - 110 011

DIRECTORATE OF STANDARDISATION DEPARTMENT OF PRODUCTION & SUPPLIES MINISTRY OF DEFENCE, 'H'- BLOCK, DHQ PO NEW DELHI - 110 011 i

JSS 55555 : 2000 Revision No. 2 MEMBERS ASSOCIATED WITH THE PREPARATION OF THIS DOCUMENT This revised Joint Services Specification has been approved by Maj Gen AR Nambiar, Chairman, Electronic Standardisation Sub Committee in the meeting held on 24 Aug 2000 / by circulation. 2. The following members have been associated in approving the draft.

CHAIRMAN Maj Gen.AR.Nambiar MEMBERS Shri S.C.Shrimali, Sc `G, ADA Sh C.Upendra Nath, JC (T) Sh B.Jayatheertha, DC (C) Lt Col Bijay Singh, DC (N) Sh R.S.Yadav, DCSO Sh V.Gopalakrishnan, Sc `E', Head, QA Sh R.K.Misra, Jt Dir, QARC Capt V.B.Iyer, Director - DRDO HQrs, New Delhi - HQ Naval Tech Group, Bangalore - ADA, Bangalore - CQA(L), Bangalore - -do- -do- ALISDA/DGAQA, B'lore - LRDE, Bangalore - DQA(L), Delhi

Sh P.Rama Bhadri Raju, Mgr, ETD-QA - BE, Bangalore Sh P.V.Suryanarayana, Mgr, SQAG Sh M.Arun Kumar, Ch Engr Sh N.Vishweswar, SSO-I Sh S.Guru Prasad, TO `B' Lt Col Satwant Singh Sh B.V.Seshadri, SSA (G) MEMBER SECRETARY Col KK Pasrija - Def Stdn Cell, Bangalore ii - CIL, Hyderabad - TI Ltd, Bangalore - QAE(WE), Bangalore - SO, Bangalore - Dte of Stdn, New Delhi. - Def Stdn Cell, Bangalore

JSS 55555 : 2000 Revision No. 2 RECORD OF AMENDMENTS Amendment Amendment pertains to: Authorit Sl.No./Para No. / Column y No. Date No. Amended by Name & Appointment (IN BLOCK LETTERS) Signatur e & Date

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JSS 55555 : 2000 Revision No. 2

CONTENTS S. No. 0. FOREWORD SECTION 1 : GENERAL INFORMATION 1. 2. 3. 4. SCOPE RELATED SPECIFICATIONS DEFINITIONS STANDARD ATMOSPHERIC CONDITIONS SECTION 2 : GENERAL PRECAUTIONS IN TESTING 1. 2. 3. 4. 5. GENERAL MODIFICATION TO TESTS EQUIPMENT UNDER TESTS CONDITIONS AT START AND END OF THE TEST TEST CHAMBERS SECTION 3 : CLASSIFICATION OF EQUIPMENT AND RECOMMENDED SEQUENCE OF TESTS 1. 2. 3. GENERAL CLASSIFICATION TESTS REQUIRED FOR EACH CLASS AND RECOMMENDED SEQUENCE OF TESTS SECTION 4 : DESCRIPTION OF TEST METHODS TEST NUMBER 1 TEST NUMBER 2 TEST NUMBER 3 TEST NUMBER 4 TEST NUMBER 5 ACCELERATION (STEADY STATE) ACOUSTIC NOISE ALTITUDE BOUNCE BUMP 4-1 to 4-7 4-9 to 4-15 4-16 to 4-24 4-25 to 4-27 4-28 to 4-34 3-1 3-1 3-4 2-1 2-1 2-1 2-1 2-2 1-1 1-2 1-3 to 1-6 1-6 to 1-7 Page No. 1

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JSS 55555 : 2000 Revision No. 2

TEST NUMBER 6 TEST NUMBER 7 TEST NUMBER 8 TEST NUMBER 9 TEST NUMBER 10 TEST NUMBER 11 TEST NUMBER 12 TEST NUMBER 13 TEST NUMBER 14 TEST NUMBER 15 TEST NUMBER 16 TEST NUMBER 17 TEST NUMBER 18 TEST NUMBER 19 TEST NUMBER 20 TEST NUMBER 21 TEST NUMBER 22 TEST NUMBER 23 TEST NUMBER 24 TEST NUMBER 25 TEST NUMBER 26 TEST NUMBER 27 TEST NUMBER 28 TEST NUMBER 29 TEST NUMBER 30 TEST NUMBER 31

CONTAMINATION CORROSION (ACID) CORROSION (ALKALINE) CORROSION (SALT/SALT FOG) DAMP HEAT DRIP PROOF DRIVING RAIN DROP DUST EXPLOSION FINE MIST HIGH TEMPERATURE ICING IMMERSION LOW TEMPERATURE MOULD GROWTH (FUNGUS) RAPID TEMPERATURE CYCLING (THERMAL SHOCK) SEALING SHOCK OR IMPACT SOLAR RADIATION TOPPLING TROPICAL EXPOSURE VIBRATION ROADABILITY TEMPERATURE, HUMIDITY, VIBRATION, ALTITUDE VIBRO ACOUSTIC,TEMPERATURE

4-35 to 4-36 4-37 to 4-40 4-41 to 4-44 4-45 to 4-48 4-49 to 4-51 4-52 to 4-54 4-55 to 4-61 4-62 to 4-63 4-64 to 4-68 4-69 4-70 to 4.71 4-72 to 4.78 4-79 to 4-81 4-82 to 4-84 4-85 to 4-86 4-91 to4-95 4-96 to4-98 4-99 to 4-110 4-111 to 4-122 4-123 to 4-125 4-126 to 4-127 4-128 to4-130 4-131 to 4-164 4-165 to 4-166 4-169 to 4-198 4-199 to 4-218

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JSS 55555 : 2000 Revision No. 2 SECTION 5 : GUIDANCE 5.1 5.2 5.3 5.4 5.5 5.6 5.9 ACCELERATION ACOUSTIC NOISE ALTITUDE BOUNCE BUMP CONTAMINATION CORROSION (SALT / SALT FOG) 5-2 to 5-5 5-6 to 5-11 5-12 5-13 to 5-15 5-16 to 5-17 5-18 5-19 to 5-22 5-23 to 5-25 5-26 5-27 5-28 to 5-29 5-30 5-31 to 5-34 5-35 5-36

5.10 DAMP HEAT 5.12 DRIVING RAIN 5.13 DROP 5.14 DUST 5.16 FINE MIST 5.17 HIGH TEMPERATURE 5.18 ICING 5.19 IMMERSION

5.20 LOW TEMPERATURE PRESSURE REQUIREMENTS 5-37 to 5-50 5.23 SEALING 5.24 SHOCK OR IMPACT 5.25 SOLAR RADIATION 5.26 TOPPLING 5.27 TROPICAL EXPOSURE 5.28 VIBRATION 5.29 ROADABILITY 5-51 to 5-54 5-55 to 5-62 5-63 to 5-64 5-65 to 5-66 5-67 to 5-68 5-69 to 5-94 5-95

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JSS 55555 : 2000 Revision No. 2 PREFACE In our efforts to achieve self reliance in vital areas of defence preparedness , the equipment developed and produced has to meet the most stringent quality standards and should fully meet the operational requirements laid down by the users . This calls for the relevant equipment specification, which is a governing document for production and supply of the equipment for the users and shall always invoke the tests and conditions laid down in this specification, to provide a common basis for comparison for performance of various electronic and electrical equipment under Service environments. Keeping in view the stringent quality and operational requirements of the users, the Joint Services Specification No. 55555 on Environmental Test Methods for Electronic and Electrical Equipment (JSS 55555) was prepared in 1979 which was later revised in 1988. Considerable experience has been gained over the years since 1988 and this has necessitated revision of the existing JSS 55555 . This document JSS 55555 on Environmental Test Methods for Electronic and Electrical Equipment has been reprinted with the various amendments incorporated . In this revised JSS 55555, major changes like introduction of modified L-2 Table and recasting of five Tables pertaining to Naval and Naval Air Services, have been incorporated. In addition Test No. 8 on Corrosion (Alkaline), Test No. 30 on Temperature, Humidity, Vibration and Altitude and Test No. 31 on Vibro Acoustic, Temperature have been added in this revised document. (AS Jolly) CMDE Director Directorate of Standardisation

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JSS 55555 : 2000 Revision No. 2 0. FOREWORD

0.1 This specification has been prepared by the Electronics Standardisation SubCommittee on the authority of the Standardisation Committee, Ministry of Defence. 0.2 This specification is a revision of JSS 55555:1988 and supersedes the same.

0.3 This specification has been approved by the Ministry of Defence and is mandatory for the purposes of preparation of environmental test schedules for any Electronic and Electrical Equipments (except those used in explosives and guided weapons systems) 0.4 Enquiries regarding this specification, in relation to any contractual conditions, should be addressed to the Quality Assurance Authority named in the tender or contract. Other enquiries/suggestions regarding corrections, additions, or amendments should be addressed to : The Director, Directorate of Standardisation, Ministry of Defence, `HBlock, DHQ PO, New Delhi - 110 011 0.5 Copies of this specification can be obtained on payment from : The Director, Directorate of Standardisation, Ministry of Defence, H' Block, DHQ PO, New Delhi - 110 011

1

JSS 55555 : 2000 Revision No. 2 SECTION 1 GENERAL INFORMATION 1. SCOPE

1.1 This specification describes standard procedures and conditions for Environmental tests for Service Electronic and Electrical Equipment (except those associated with explosives and guided missiles). 1.2 This specification includes environmental conditions obtainable in the laboratory, such that if an item is exposed to these conditions and continues to operate in a satisfactory manner, a high degree of confidence will have been established that the item could survive the field environment during its expected operational and storage life. The tests described herein are not to be interpreted as an exact and conclusive representation of actual operational and storage conditions. It is also the purpose of this document to standardize environmental tests in order to obtain, as much as possible, reproducible test results. 1.3 The tests specified herein are intended to serve the need for predetermining the potential causes of failure of equipment under operational and storage environments. In some of the tests, the test conditions are varied in order to enable the designers to select the conditions which will be adequate to meet the users (qualitative) requirements, commensurate with the design efforts. 1.4 The acceptable performance limits of the equipment when subjected to environmental tests are not included in this specification. The relevant equipment specification shall define the acceptable performance limits during and after the specified environmental tests. 1.5 The relevant equipment specification, which is the governing document for production and supply of the equipment for the users, shall always invoke the tests and conditions laid down in this specification, to provide a common basis for comparison for performance of various Electronic and Electrical Equipment under Service environments. 1.6 This specification, in itself, does not constitute an instruction to apply the tests. Such instructions, together with the incidence and grouping of Equipment for tests for the purposes

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