BS 9070-4:1971
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
Specification for fixed capacitors of assessed quality: generic data and methods of test Polystyrene dielectric capacitors
Hardcopy , PDF
27-09-2012
English
18-02-1971
Cooperating organizations
Foreword
Specification
Section 4. Polystyrene dielectric capacitors
4.1 General matters
4.1.1 Scope
4.1.2 Related documents
4.1.3 Terminology
4.1.4 Letter symbols, signs and abbreviations
4.1.5 Graphical symbols
4.1.7 Eligibility for qualification approval
4.1.8 Structurally similar parts
4.1.9 Delayed delivery
4.1.10 Supplementary procedure for qualification approval
4.1.11 Certified test records
4.1.12 Standard ratings and characteristics
4.1.13 Unchecked parameters
4.1.14 Procedure to be followed in the event of failures
at Group C inspection
4.1.15 Ordering information
4.1.16 Release before completion of Group B inspection
4.2 Test procedures
4.2.1 Measurement conditions
4.2.2 Visual examination
4.2.3 Dimensioning and gauging procedure
4.2.4 Electrical test procedures
4.2.4.1 Preliminary drying
4.2.4.2 Voltage proof
4.2.4.3 Capacitance
4.2.4.4 Tangent of the loss angle
4.2.4.5 Leakage current
4.2.4.6 Impedance
4.2.4.7 Insulation resistance
4.2.4.8 Inductance
4.2.4.9 Outer foil termination
4.2.4.10 Temperature coefficient and cyclic drift
4.2.4.11 Temperature characteristic of capacitance
4.2.4.12 Short term stability
4.2.4.13 Charge/discharge test
4.2.4.14 D.C. surge voltage test
4.2.4.15 Pressure relief test
4.2.5 Mechanical tests
4.2.6 Environmental test procedures
4.2.6.1 Robustness of terminations
4.2.6.2 Soldering
4.2.6.3 Rapid change of temperature
4.2.6.4 Bumping
4.2.6.5 Shock
4.2.6.6 Acceleration
4.2.6.7 Vibration
4.2.6.8 Climatic sequence
4.2.6.9 Damp heat, steady state
4.2.6.10 Container sealing
4.2.6.11 Storage
4.2.6.12 Mould growth
4.2.6.13 Salt mist
4.2.7 Endurance test procedures
4.3 Inspection schedule
Table
1. Initial and final measurements
Prescribes the specific tests and requirements of Sections 1 and 2 which are applicable to polystyrene dielectric capacitors. Prescribes the test schedule, giving the specific conditions of test and the initial and final measurements as required by Sections 1 and 2.
Committee |
W/-
|
DevelopmentNote |
Supersedes 69/5569 DC (10/2005) Inactive for the new design. (09/2007)
|
DocumentType |
Standard
|
Pages |
14
|
PublisherName |
British Standards Institution
|
Status |
Withdrawn
|
DEFSTAN 59-44(PT4)SEC1/1(1971) : 1971 | CAPACITORS, FIXED, OF ASSESSED QUALITY - PART 4: CAPACITORS, FIXED, POLYSTYRENE DIELECTRIC - SECTION 1: SECTIONAL REQUIREMENTS AND INDEX TO SECTIONS |
BS 9000(1967) : LATEST | |
BS 2488:1966 | Schedule of preferred numbers for the resistance of resistors and the capacitance of capacitors for telecommunication equipment |
BS 2045:1965 | Preferred numbers |
BS 9070-1&2(1969) : 1969 AMD 7393 | SPECIFICATION FOR FIXED CAPACITORS OF ASSESSED QUALITY: GENERIC DATA AND METHODS OF TEST - PRINCIPLES AND MANDATORY PROCEDURES - GENERAL RULES FOR DRAFTING DETAIL SPECIFICATIONS |
Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.