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  • IEC 60027-1:1992

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    Letters symbols to be used in electrical technology - Part 1: General

    Available format(s):  Hardcopy, PDF, PDF 3 Users, PDF 5 Users, PDF 9 Users

    Language(s): 

    Published date:  01-01-1992

    Publisher:  International Electrotechnical Committee

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    Abstract - (Show below) - (Hide below)

    Corrected and reprinted 1995-03-31.
    The contents of the corrigendum of April 1993 have been included in this copy.

    General Product Information - (Show below) - (Hide below)

    Development Note Supersedes IEC 60027-1A. (07/2004) Stability Date: 2017. (09/2017)
    Document Type Standard
    Publisher International Electrotechnical Committee
    Status Current
    Supersedes

    Standards Referenced By This Book - (Show below) - (Hide below)

    DIN 32830-1:1992-01 GRAPHICAL SYMBOLS; GENERAL PRINCIPLES FOR THE FORMULATION OF GRAPHICAL SYMBOLS FOR USE ON EQUIPMENT
    CEI EN 60027-7 : 2011 LETTER SYMBOLS TO BE USED IN ELECTRICAL TECHNOLOGY - PART 7: POWER GENERATION, TRANSMISSION AND DISTRIBUTION
    06/30148641 DC : DRAFT SEP 2006 IEC 60050-112 ED1 - INTERNATIONAL ELECTROTECHNICAL VOCABULARY - PART 112: QUANTITIES AND UNITS
    CEI UNI EN 80000-13 : 2009 QUANTITIES AND UNITS - PART 13: INFORMATION SCIENCE AND TECHNOLOGY
    CEI EN 60027-6 : 2008 LETTER SYMBOLS TO BE USED IN ELECTRICAL TECHNOLOGY - PART 6: CONTROL TECHNOLOGY
    BS EN 62341-1-1:2009 Organic light emitting diode (OLED) displays Generic specifications
    CEI EN 61310-2 : 2008 SAFETY OF MACHINERY - INDICATION, MARKING AND ACTUATION - PART 2: REQUIREMENTS FOR MARKING
    I.S. EN 60034-1:2010 ROTATING ELECTRICAL MACHINES - PART 1: RATING AND PERFORMANCE
    BS CECC 43000(1982) : AMD 7315 HARMONIZED SYSTEM OF QUALITY ASSESSMENT FOR ELECTRONIC COMPONENTS: GENERIC SPECIFICATION: DIRECTLY HEATED NEGATIVE TEMPERATURE COEFFICIENT THERMISTORS
    BS EN 135000:1993 HARMONIZED SYSTEM OF QUALITY ASSESSMENT FOR ELECTRONIC COMPONENTS - GENERIC SPECIFICATION: TRAVELING WAVE AMPLIFIER TUBES
    11/30170712 DC : 0 BS EN 60050-191 ED 2.0 - INTERNATIONAL ELECTROTECHNICAL VOCABULARY - PART 191: DEPENDABILITY
    DIN 1313:1998-12 QUANTITIES
    BS EN 170000:1999 Harmonized system of quality assessment for electronic components. Generic specification: waveguide type dielectric resonators
    IEC 61045-1:1991 Fixed film resistor networks for use in electronic equipment - Part 1: Generic specification
    BS ISO 31-2:1992 QUANTITIES AND UNITS - PART 2: PERIODIC AND RELATED PHENOMENA
    CEI UNI EN 80000-6 : 2009 QUANTITIES AND UNITS - PART 6: ELECTROMAGNETISM
    14/30317819 DC : 0 BS EN 60276 ED. 2 - DEFINITIONS AND NOMENCLATURE FOR CARBON BRUSHES, BRUSH-HOLDERS, COMMUTATORS AND SLIP-RINGS
    BS EN 140401-801 : 2007 DETAIL SPECIFICATION: FIXED LOW POWER FILM SMD RESISTORS - RECTANGULAR - STABILITY CLASSES 0,1; 0,25; 0,5; 1
    CEI EN 62341-1-1 : 2011 ORGANIC LIGHT EMITTING DIODE (OLED) DISPLAYS - PART 1-1: GENERIC SPECIFICATIONS
    BS EN 60115-2:2015 Fixed resistors for use in electronic equipment Sectional specification: Leaded fixed low power film resistors
    DIN EN 138000 : 1997 GENERIC SPECIFICATION; FIXED INDUCTORS FOR ELECTROMAGNETIC INTERFERENCE SUPPRESSION (INDUCTORS FOR WHICH SAFETY TESTS ARE REQUIRED)
    I.S. EN 114000:1994 GENERIC SPECIFICATION: PHOTOMULTIPLIER TUBES
    BS EN 80000-13:2008 Quantities and units Information science and technology
    BS EN 171000:2001 Harmonized system of quality assessment for electronic components. Generic specification. Filters using waveguide type dielectric resonators
    DIN EN ISO 80000-1:2013-08 Quantities and units - Part 1: General (ISO 80000-1:2009 + Cor 1:2011)
    BS EN 60994:1993 GUIDE FOR FIELD MEASUREMENT OF VIBRATIONS AND PULSATIONS IN HYDRAULIC MACHINES (TURBINES, STORAGE PUMPS AND PUMP-TURBINES)
    DIN 5483-2:1982-09 TIME-DEPENDENT QUANTITIES - LETTER SYMBOLS
    BS EN 61143-1:1994 SPECIFICATION FOR ELECTRICAL MEASURING INSTRUMENTS - X-T RECORDERS - PART 1: DEFINITIONS AND REQUIREMENTS
    BS EN 60539-1:2016 Directly heated negative temperature coefficient thermistors Generic specification
    12/30258880 DC : 0 BS EN 60825-1 ED.3 - SAFETY OF LASER PRODUCTS - PART 1: EQUIPMENT CLASSIFICATION AND REQUIREMENTS
    BS CECC 12000(1981) : 1981 AMD 9605 HARMONIZED SYSTEM OF QUALITY ASSESSMENT FOR ELECTRONIC COMPONENTS - GENERIC SPECIFICATION - IMAGE CONVERTER & IMAGE INTENSIFIER TUBES
    BS ISO 1000:1992 SI UNITS AND RECOMMENDATIONS FOR THE USE OF THEIR MULTIPLES AND OF CERTAIN OTHER UNITS
    DD IEC/TS 61968-2:2011 Application integration at electric utilities. System interfaces for distribution management Glossary
    BS EN 60255-24:2001 Electrical relays Common format for transient data exchange (COMTRADE) for power systems
    03/113813 DC : 0 IEC 60034-2. ED.4 - ROTATING ELECTRICAL MACHINES - PART 2: METHODS FOR DETERMINING LOSSES AND EFFICIENCY FROM TESTS (EXCLUDING MACHINES FOR TRACTION VEHICLES)
    BS EN 60027-4:2007 LETTER SYMBOLS TO BE USED IN ELECTRIC TECHNOLOGY - PART 4: ROTATING ELECTRIC MACHINES
    BS 5862(1980) : 1980 AMD 10232 METHOD OF SPECIFYING INDUCTIVE VOLTAGE DIVIDERS
    05/30132097 DC : DRAFT JUNE 2005 IEC 60679-1 ED 3 - QUARTZ CRYSTAL CONTROLLED OSCILLATORS OF ASSESSED QUALITY - PART 1: GENERIC SPECIFICATION
    BS EN 140101:2008 Blank Detail Specification. Fixed low power film resistors
    BS EN 119000:1997 HARMONIZED SYSTEM OF QUALITY ASSESSMENT FOR ELECTRONIC COMPONENTS - GENERIC SPECIFICATION: DRY AND MERCURY WETTED REED CONTACT UNITS
    BS CECC68000(1990) : AMD 9184 HARMONIZED SYSTEM OF QUALITY ASSESSMENT FOR ELECTRONIC COMPONENTS: GENERIC SPECIFICATION: QUARTZ CRYSTAL UNITS
    CEI EN 60255-24 : 2003 ELECTRICAL RELAYS - PART 24: COMMON FORMAT FOR TRANSIENT DATA EXCHANGE (COMTRADE) FOR POWER SYSTEMS
    I.S. 604:1984 COLD CATHODE INDICATOR TUBES (GENERIC SPECIFICATION)
    I.S. HD 60027-2:2003 LETTER SYMBOLS TO BE USED IN ELECTRICAL TECHNOLOGY - PART 2: TELECOMMUNICATIONS AND ELECTRONICS
    BS EN 62368-1 : 2014 AUDIO/VIDEO, INFORMATION AND COMMUNICATION TECHNOLOGY EQUIPMENT - PART 1: SAFETY REQUIREMENTS
    I.S. EN 168000:1994 QUARTZ CRYSTAL UNITS (GENERIC SPECIFICATION)
    I.S. EN 60939-3:2015 PASSIVE FILTER UNITS FOR ELECTROMAGNETIC INTERFERENCE SUPPRESSION - PART 3: PASSIVE FILTER UNITS FOR WHICH SAFETY TESTS ARE APPROPRIATE
    I.S. EN 140402-801:2015 DETAIL SPECIFICATION: FIXED LOW POWER WIREWOUND SURFACE MOUNT (SMD) RESISTORS - RECTANGULAR - STABILITY CLASSES 0,5; 1; 2
    I.S. EN 60539-1:2016 DIRECTLY HEATED NEGATIVE TEMPERATURE COEFFICIENT THERMISTORS - PART 1: GENERIC SPECIFICATION
    BS EN 60086-4:2015 Primary batteries Safety of lithium batteries
    IEC 61253-1:1993 Piezoelectric ceramic resonators - A specification in the IEC quality assessment system for electronic components (IECQ) - Part 1: Generic specification - Qualification approval
    I.S. EN 60849:1999 SOUND SYSTEMS FOR EMERGENCY PURPOSES
    CSA C22.2 No. 62368-1 : 2014 AUDIO/VIDEO, INFORMATION AND COMMUNICATION TECHNOLOGY EQUIPMENT - PART 1: SAFETY REQUIREMENTS
    DIN EN ISO 80000-8:2008-01 QUANTITIES AND UNITS - PART 8: ACOUSTICS
    BS EN ISO 80000-8:2007 Quantities and units Acoustics
    IEC 62319-1:2005 Polymeric thermistors - Directly heated positive step function temperature coefficient - Part 1: Generic specification
    BS EN 60825-1:2014 Safety of laser products Equipment classification and requirements
    BS EN 1658:1997 REQUIREMENTS FOR MARKING OF IN VITRO DIAGNOSTIC INSTRUMENTS
    BS CECC 11000(1980) : 1980 AMD 7600 HARMONIZED SYSTEM OF QUALITY ASSESSMENT FOR ELECTRONIC COMPONENTS - GENERIC SPECIFICATION - CATHODE RAY TUBES
    13/30238229 DC : 0 BS EN 62052-31 - ELECTRICITY METERING EQUIPMENT (AC) - GENERAL REQUIREMENTS, TEST AND TEST CONDITIONS - PART 31: PRODUCT SAFETY REQUIREMENTS
    IEC 60139:2000 Preparation of outline drawings for cathode-ray tubes, their components, connections and gauges
    EN 62052-31:2016 Electricity metering equipment (AC) - General requirements, tests and test conditions - Part 31: Product safety requirements and tests
    BS 4743:1979 Specification for safety requirements for electronic measuring apparatus
    EN 60034-22:2009 Rotating electrical machines - Part 22: AC generators for reciprocating internal combustion (RIC) engine driven generating sets
    EN 140402-801:2015 Detail specification: Fixed low power wirewound surface mount (SMD) resistors - Rectangular - Stability classes 0,5; 1; 2
    EN 134000:1994 Generic Specification: Variable capacitors (Qualification approval and capability approval)
    EN 60034-2-1:2014 Rotating electrical machines - Part 2-1: Standard methods for determining losses and efficiency from tests (excluding machines for traction vehicles)
    EN 140101:2008 Blank Detail Specification: Fixed low power film resistors
    EN 129000:1993/A1:1995 GENERIC SPECIFICATION - FIXED RF WOUND INDUCTORS
    EN 60115-2:2015 Fixed resistors for use in electronic equipment - Part 2: Sectional specification: Leaded fixed low power film resistors
    EN 60027-2:2007 Letter symbols to be used in electrical technology - Part 2: Telecommunications and electronics
    EN 135000:1992 Generic Specification: Travelling wave amplifier tubes
    EN 140401:2009 Blank Detail Specification: Fixed low power film surface mount (SMD) resistors
    EN 80000-6:2008 Quantities and units - Part 6: Electromagnetism
    EN 140402:2015/A1:2016 BLANK DETAIL SPECIFICATION: FIXED LOW POWER WIREWOUND SURFACE MOUNT (SMD) RESISTORS
    EN 62319-1:2005 Polymeric thermistors - Directly heated positive step function temperature coefficient - Part 1: Generic specification
    EN 171000:2001 Generic specification: Filters using waveguide type dielectric resonators
    DEFSTAN 61-14(PT7)/1(1990) : 1990 PRECISION INSTRUMENT, ROTATING, SERVOCOMPONENTS - PART 7: INSTALLATION CONVENTIONS
    EN 114000:1991 Generic Specification: Photomultiplier tubes
    OVE/ONORM EN 60027-2 : 2007 LETTER SYMBOLS TO BE USED IN ELECTRICAL TECHNOLOGY - PART 2: TELECOMMUNICATIONS AND ELECTRONICS
    DEFSTAN 61-14(PT5)/1(1985) : 1985 PRECISION INSTRUMENT, ROTATING, SERVO-COMPONENTS - PART 5: MOTORS, STEPPING, D.C.
    DEFSTAN 59-27(PT1)/2(1990) : 1990 PRECISION INSTRUMENT, ROTATING, SERVOCOMPONENTS - GENERAL REQUIREMENTS AND COMMON TESTS FOR SERVOCOMPONENTS
    BS CECC 90000:1991 HARMONIZED SYSTEM OF QUALITY ASSESSMENT FOR ELECTRONIC COMPONENTS: GENERIC SPECIFICATION: MONOLITHIC INTEGRATED CIRCUITS
    DEFSTAN 61-14(PT2)/2(1990) : 1990 PRECISION INSTRUMENT, ROTATING, SERVOCOMPONENTS - PART 2: MOTORS, CONTROL AC (SERVOMOTORS, TWO-PHASE INDUCTION)
    DEFSTAN 61-14(PT1)/2(1990) : 1990 PRECISION INSTRUMENT, ROTATING, SERVOCOMPONENTS - PART 1: GENERAL REQUIREMENTS AND COMMON TESTS FOR SERVOCOMPONENTS
    DEFSTAN 61-14(PT9)/1(1988) : 1988 PRECISION INSTRUMENT, ROTATING, SERVOCOMPONENTS - PART 9: MOTORS, TORQUE, D.C.
    BS CECC 90000:1985 HARMONIZED SYSTEM OF QUALITY ASSESSMENT FOR ELECTRONIC COMPONENTS - GENERIC SPECIFICATION: MONOLITHIC INTEGRATED CIRCUITS
    DEFSTAN 61-14(PT10)/1(1989) : 1989 PRECISION INSTRUMENT, ROTATING, SERVO-COMPONENTS - PART 10: GEARHEADS
    EN 113000:1991 Generic Specification: Camera tubes
    EN 168000 : 1993 AMD 2 1998 GENERIC SPECIFICATION - QUARTZ CRYSTAL UNITS
    IEC 60115-2:2014 Fixed resistors for use in electronic equipment - Part 2: Sectional specification: Leaded fixed low power film resistors
    10/30237986 DC : 0 BS EN 140401-804 - DETAIL SPECIFICATION: FIXED LOW POWER FILM HIGH STABILITY SMD RESISTORS - RECTANGULAR - STABILITY CLASSES 0,1; 0,25
    04/30113282 DC : DRAFT MAY 2004 IEC 62341-1 F2 ED.1 - ORGANIC LIGHT EMITTING DIODE DISPLAYS - PART 1: TERMINOLOGY
    15/30300738 DC : DRAFT MAY 2015 BS EN 60027-2 ED 4.0 - LETTER SYMBOLS TO BE USED IN ELECTRICAL TECHNOLOGY - PART 2: TELECOMMUNICATIONS AND ELECTRONICS
    06/30157868 DC : 0 BS EN 60393-1 - POTENTIOMETERS FOR USE IN ELECTRONIC EQUIPMENT - PART 1: GENERIC SPECIFICATION
    DIN EN 190000:1996-05 GENERIC SPECIFICATION - MONOLITHIC INTEGRATED CIRCUITS
    BS EN 169000:1993 Harmonized system of quality assessment for electronic components. Generic specification. Quartz crystal controlled oscillators
    BS EN 129000:1996 HARMONIZED SYSTEM OF QUALITY ASSESSMENT FOR ELECTRONIC COMPONENTS - GENERIC SPECIFICATION - FIXED RF WOUND INDUCTORS
    BS EN 60115-8:2012 Fixed resistors for use in electronic equipment Sectional specification. Fixed surface mount resistors
    NF EN 60027-7 : 2011 LETTER SYMBOLS TO BE USED IN ELECTRICAL TECHNOLOGY - PART 7: POWER GENERATION, TRANSMISSION AND DISTRIBUTION
    AHRI 130 : 1988 GRAPHIC ELECTRICAL/ELECTRONIC SYMBOLS FOR AIR-CONDITIONING AND REFRIGERATING EQUIPMENT
    BS CECC 25000:1977 SPECIFICATION FOR HARMONIZED SYSTEM OF QUALITY ASSESSMENT FOR ELECTRONIC COMPONENTS: GENERIC SPECIFICATION: INDUCTOR AND TRANSFORMER CORES FOR TELECOMMUNICATIONS
    BS CECC14000(1984) : 1984 AMD 7575 HARMONIZED SYSTEM OF QUALITY ASSESSMENT FOR ELECTRONIC COMPONENTS: GENERIC SPECIFICATION: PHOTOMULTIPLIER TUBES
    BS EN 62319-1:2005 Polymeric thermistors. Directly heated positive step function temperature coefficient Generic specification
    BS QC 420000:1992 HARMONIZED SYSTEM OF QUALITY ASSESSMENT FOR ELECTRONIC COMPONENTS - VARISTORS FOR USE IN ELECTRONIC EQUIPMENT: GENERIC SPECIFICATION
    BS EN 61747-1:2000 Liquid crystal and solid-state display devices Generic specification
    DIN 5483-1:1983-06 TIME-DEPENDENT QUANTITIES - TERMS FOR THE TIME-DEPENDENCY
    PD IEC TR 60825-14:2004 Safety of laser products A user\'s guide
    BS EN 60027-2:2007 LETTER SYMBOLS TO BE USED IN ELECTRICAL TECHNOLOGY - PART 2: TELECOMMUNICATIONS AND ELECTRONICS
    BS EN 137000:1996 HARMONIZED SYSTEM OF QUALITY ASSESSMENT FOR ELECTRONIC COMPONENTS: GENERIC SPECIFICATION: FIXED ALUMINIUM ELECTROLYTIC A.C. CAPACITORS WITH NON-SOLID ELECTROLYTE FOR USE WITH MOTORS
    BS 7477:1991 GUIDE FOR GENERAL PRINCIPLES FOR THE CREATION OF GRAPHICAL SYMBOLS FOR USE ON EQUIPMENT
    08/30140577 DC : DRAFT JULY 2008 BS EN 60027-7 - LETTER SYMBOLS TO BE USED IN ELECTRICAL TECHNOLOGY - PART 7: POWER GENERATION, TRANSMISSION AND DISTRIBUTION
    BS QC 390000:1992 HARMONIZED SYSTEM OF QUALITY ASSESSMENT FOR ELECTRONIC COMPONENTS - FIXED FILM RESISTOR NETWORKS FOR USE IN ELECTRONIC EQUIPMENT - GENERIC SPECIFICATION
    09/30207307 DC : 0 BS EN 60115-2 - FIXED RESISTORS FOR USE IN ELECTRONIC EQUIPMENT - PART 2: SECTIONAL SPECIFICATION: FIXED LOW-POWER NON-WIREWOUND RESISTORS
    03/314031 DC : DRAFT AUG 2003 BS ISO 7176-26 - WHEELCHAIRS - PART 26: VOCABULARY
    07/30065083 DC : DRAFT JUNE 2007 BS EN 60027-4 - LETTER SYMBOLS TO BE USED IN ELECTRICAL TECHNOLOGY - PART 4: ROTATING ELECTRIC MACHINES
    I.S. EN 135000:1994 TRAVELLING WAVE AMPLIFIER TUBES (GENERIC SPECIFICATION)
    BS EN 117000:1997 Harmonized system of quality assessment for electronic components. Generic specification. Solid state all-or-nothing relays. Generic data and methods of test
    CEI EN 60034-1 : 2015 ROTATING ELECTRICAL MACHINES - PART 1: RATING AND PERFORMANCE
    BS EN 62099:2001 FIBRE OPTIC WAVELENGTH SWITCHES - GENERIC SPECIFICATION
    04/30118550 DC : DRAFT AUG 2004 IEC 60050-394 ED 2 - INTERNATIONAL ELECTROTECHNICAL VOCABULARY - PART 394: NUCLEAR INSTRUMENTATION - INSTRUMENTS
    CEI EN 60393-1 : 2010 POTENTIOMETERS FOR USE IN ELECTRONIC EQUIPMENT - PART 1: GENERIC SPECIFICATION
    BS CECC 19000:1979 HARMONIZED SYSTEM OF QUALITY ASSESSMENT FOR ELECTRONIC COMPONENTS: GENERIC SPECIFICATION: DRY REED MAKE CONTACT UNITS
    I.S. EN 60115-8-1:2015 FIXED RESISTORS FOR USE IN ELECTRONIC EQUIPMENT - PART 8-1: BLANK DETAIL SPECIFICATION: FIXED SURFACE MOUNT (SMD) LOW POWER FILM RESISTORS FOR GENERAL ELECTRONIC EQUIPMENT, CLASSIFICATION LEVEL G
    I.S. EN 140101:2008 BLANK DETAIL SPECIFICATION: FIXED LOW POWER FILM RESISTORS
    IEC 60050-151:2001 International Electrotechnical Vocabulary (IEV) - Part 151: Electrical and magnetic devices
    I.S. EN 140402:2015 BLANK DETAIL SPECIFICATION: FIXED LOW POWER WIREWOUND SURFACE MOUNT (SMD) RESISTORS
    BS EN 138000:1997 HARMONIZED SYSTEM OF QUALITY ASSESSMENT FOR ELECTRONIC COMPONENTS - GENERIC SPECIFICATION: FIXED INDUCTORS FOR ELECTROMAGNETIC INTERFERENCE SUPPRESSION (INDUCTORS FOR WHICH SAFETY TESTS ARE REQUIRED)
    I.S. EN 140401-802:2007 DETAIL SPECIFICATION: FIXED LOW POWER FILM SMD RESISTORS - RECTANGULAR - STABILITY CLASSES 1; 2
    I.S. EN 60115-8:2012 FIXED RESISTORS FOR USE IN ELECTRONIC EQUIPMENT - PART 8: SECTIONAL SPECIFICATION - FIXED SURFACE MOUNT RESISTORS (IEC 60115-8:2009 (MOD))
    I.S. EN 60027-2:2007 LETTER SYMBOLS TO BE USED IN ELECTRICAL TECHNOLOGY - PART 2: TELECOMMUNICATIONS AND ELECTRONICS
    CEI EN 60139 : 2003 PREPARATION OF OUTLINE DRAWINGS FOR CATHODE-RAY TUBES, THEIR COMPONENTS, CONNECTIONS AND GAUGES
    I.S. EN 140401:2009 BLANK DETAIL SPECIFICATION: FIXED LOW POWER FILM SURFACE MOUNT (SMD) RESISTORS
    IEC 60539-1:2016 Directly heated negative temperature coefficient thermistors - Part 1: Generic specification
    NFC 01 482 : 2004 AMD 1 2016 ELECTROTECHNICAL VOCABULARY - PART 482: PRIMARY AND SECONDARY CELLS AND BATTERIES
    IEC 60115-8-1:2014 Fixed resistors for use in electronic equipment - Part 8-1: Blank detail specification: Fixed surface mount (SMD) low power film resistors for general electronic equipment, classification level G
    I.S. EN 140100:2008 SECTIONAL SPECIFICATION: FIXED LOW POWER FILM RESISTORS
    IEC 60050-101:1998 International Electrotechnical Vocabulary (IEV) - Part 101: Mathematics
    IEC 60050-394:2007 International Electrotechnical Vocabulary (IEV) - Part 394: Nuclear instrumentation - Instruments, systems, equipment and detectors
    IEC 61156-1-1:2001 Multicore and symmetrical pair/quad cables for digital communications - Part 1-1: Capability Approval - Generic specification
    I.S. EN 60034-2-1:2014 ROTATING ELECTRICAL MACHINES - PART 2-1: STANDARD METHODS FOR DETERMINING LOSSES AND EFFICIENCY FROM TESTS (EXCLUDING MACHINES FOR TRACTION VEHICLES)
    IEC 61261-1:1994 Piezoelectric ceramic filters for use in electronic equipment - A specification in the IEC quality assessment system for electronic components (IECQ) - Part 1: Generic specification - Qualification approval
    IEC 60050-103:2009 International Electrotechnical Vocabulary (IEV) - Part 103: Mathematics - Functions
    ISO 80000-1:2009 Quantities and units — Part 1: General
    EN 60825-1:2014/AC:2017-06 SAFETY OF LASER PRODUCTS - PART 1: EQUIPMENT CLASSIFICATION AND REQUIREMENTS (IEC 60825-1:2014)
    NEMA EW 4-2009 GRAPHIC SYMBOLS FOR ARC WELDING AND CUTTING APPARATUS
    BS 5555:1981 SPECIFICATION FOR S.I. UNITS AND RECOMMENDATIONS FOR THE USE OF THEIR MULTIPLES AND OF CERTAIN OTHER UNITS
    BS 5555:1993 SPECIFICATION FOR SI UNITS AND RECOMMENDATIONS FOR USE OF THEIR MULTIPLES AND OF CERTAIN OTHER UNITS
    BS CECC 63000:1990 HARMONIZED SYSTEM OF QUALITY ASSESSMENT FOR ELECTRONIC COMPONENTS - GENERIC SPECIFICATION: FILM AND HYBRID INTEGRATED CIRCUITS
    BS 5775-5:1993 SPECIFICATION FOR QUANTITIES, UNITS AND SYMBOLS - ELECTRICITY AND MAGNETISM
    BS 5775-2:1993 SPECIFICATION FOR QUANTITIES, UNITS AND SYMBOLS - PERIODIC AND RELATED PHENOMENA
    BS 4308:1979 SPECIFICATION FOR DOCUMENTATION TO BE SUPPLIED WITH ELECTRONIC MEASURING APPARATUS
    BS CECC 22000:1993 HARMONIZED SYSTEM OF QUALITY ASSESSMENT FOR ELECTRONIC COMPONENTS - GENERIC SPECIFICATION: RADIO FREQUENCY COAXIAL CONNECTORS (PART 1, 2 AND 3)
    BS CECC17000(1992) : 1992 AMD 9626 HARMONIZED SYSTEM OF QUALITY ASSESSMENT FOR ELECTRONIC COMPONENTS - GENERIC SPECIFICATION - SOLID STATE ALL OR NOTHING RELAYS - GENERIC DATA AND METHODS OF TEST
    BS CECC 16000:1980 HARMONIZED SYSTEM OF QUALITY ASSESSMENT FOR ELECTRONIC COMPONENTS - GENERIC SPECIFICATION - ELECTROMECHANICAL ALL OR NOTHING RELAYS
    BIS IS/IEC 80000-6 : 2008 QUANTITIES AND UNITS - PART 6: ELECTROMAGNETISM
    17/30347375 DC : 0 BS EN 62368-1 ED 3.0 - AUDIO/VIDEO; INFORMATION AND COMMUNICATION TECHNOLOGY EQUIPMENT - PART 1: SAFETY REQUIREMENTS
    BS CECC 64000:1990 HARMONIZED SYSTEM OF QUALITY ASSESSMENT FOR ELECTRONIC COMPONENTS: GENERIC SPECIFICATION: FILM RESISTOR NETWORKS
    13/30287806 DC : 0 BS EN 60539-1 - DIRECTLY HEATED NEGATIVE TEMPERATURE COEFFICIENT THERMISTORS - PART 1: GENERIC SPECIFICATION
    PD IEC/TS 62720:2017 Identification of units of measurement for computer-based processing
    06/30153438 DC : DRAFT JULY 2006 BS IEC 60539-1 ED.2 - DIRECTLY HEATED NEGATIVE TEMPERATURE COEFFICIENT THERMISTORES - PART 1: GENERIC SPECIFICATION
    05/30126393 DC : DRAFT SEP 2005 BS ISO/IEC 80000-8 - QUANTITIES AND UNITS - PART 8: ACOUSTICS
    BS EN 60034-2-1:2014 Rotating electrical machines Standard methods for determining losses and efficiency from tests (excluding machines for traction vehicles)
    CEI EN 60115-8-1 : 2016 FIXED RESISTORS FOR USE IN ELECTRONIC EQUIPMENT - PART 8-1: BLANK DETAIL SPECIFICATION: FIXED SURFACE MOUNT (SMD) LOW POWER FILM RESISTORS FOR GENERAL ELECTRONIC EQUIPMENT, CLASSIFICATION LEVEL G
    97/231700 DC : DRAFT DEC 1997 IEC 60115-1 - FIXED RESISTORS FOR USE IN ELECTRONIC EQUIPMENT - PART 1: GENERIC SPECIFICATION
    BS CECC 22000:1980 HARMONIZED SYSTEM OF QUALITY ASSESSMENT FOR ELECTRONIC COMPONENTS: GENERIC SPECIFICATION: RADIO FREQUENCY COAXIAL CONNECTORS
    BS EN 60034-22:2009 Rotating electrical machines AC generators for reciprocating internal combustion (RIC) engine driven generating sets
    BS EN 140401-803 : 2007 DETAIL SPECIFICATION: FIXED LOW POWER FILM SMD RESISTORS - CYLINDRICAL - STABILITY CLASSES 0,05; 0,1; 0,25; 0,5; 1; 2
    BS QC420101(1992) : 1992 VARISTORS FOR USE IN ELECTRONIC EQUIPMENT - BLANK DETAIL SPECIFICATION FOR SILICON CARBIDE SURGE SUPPRESSION VARISTORS - ASSESSMENT LEVEL E
    BS EN 60825 : 1992 RADIATION SAFETY OF LASER PRODUCTS, EQUIPMENT CLASSIFICATION, REQUIREMENTS AND USER'S GUIDE
    09/30209389 DC : 0 BS EN 60115-8-1 - FIXED RESISTORS FOR USE IN ELECTRONIC EQUIPMENT - PART 8-1: BLANK DETAIL SPECIFICATION - FIXED CHIP RESISTORS - ASSESSMENT LEVEL E
    BS EN 61030:1993 SPECIFICATION FOR DOMESTIC DIGITAL BUS (D2B) FOR AUDIO, VIDEO AND AUDIOVISUAL SYSTEMS
    I.S. EN 60115-2:2015 FIXED RESISTORS FOR USE IN ELECTRONIC EQUIPMENT - PART 2: SECTIONAL SPECIFICATION: LEADED FIXED LOW POWER FILM RESISTORS
    04/30117615 DC : DRAFT AUG 2004 IEC 61310-2 - SAFETY OF MACHINERY - INDICATION, MARKING AND ACTUATION - PART 2: REQUIREMENTS FOR MARKING
    BS 7192(1989) : 1989 SPECIFICATION FOR RADIATION SAFETY OF LASER PRODUCTS
    10/30234803 DC : 0 BS EN 61169-1 ED.2 - RADIO FREQUENCY CONNECTORS - PART 1: GENERIC SPECIFICATION - GENERAL REQUIREMENTS AND MEASURING METHODS
    I.S. EN 60034-22:2009 ROTATING ELECTRICAL MACHINES - PART 22: AC GENERATORS FOR RECIPROCATING INTERNAL COMBUSTION (RIC) ENGINE DRIVEN GENERATING SETS
    BS EN 168000:1996 Harmonized system of quality assessment for electronic components. Generic specification: quartz crystal units
    I.S. EN 138000:1998 FIXED INDUCTORS FOR ELECTROMAGNETIC INTERFERENCE SUPPRESSION (INDUCTORS FOR WHICH SAFETY TESTS ARE REQUIRED) (GENERIC SPECIFICATION)
    UNI CEI EN 80000-13 : 2009 QUANTITIES AND UNITS - PART 13: INFORMATION SCIENCE AND TECHNOLOGY
    14/30317306 DC : 0 BS EN 60115-8-1:2014+A1 - FIXED RESISTORS FOR USE IN ELECTRONIC EQUIPMENT - PART 8-1: BLANK DETAIL SPECIFICATION: FIXED SURFACE MOUNT (SMD) LOW POWER FILM RESISTORS FOR GENERAL ELECTRONIC EQUIPMENT, CLASSIFICATION LEVEL G
    UNE-EN 60034-1:2011 Rotating electrical machines - Part 1: Rating and performance
    BS EN 60034-1:2010 ROTATING ELECTRICAL MACHINES - PART 1: RATING AND PERFORMANCE
    DIN EN ISO 80000-1 E : 2013 QUANTITIES AND UNITS - PART 1: GENERAL (ISO 80000-1:2009 + COR 1:2011)
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