The second level of the instrument is higher than the third level
The second level of the instrument is higher than the third level, Total:148 items.
The international standard classification for "The second level of the instrument is higher than the third level" includes: Aircraft and space vehicles in general , Ventilators. Fans. Air-conditioners , Ceramic products , Other textile machinery .
The Chinese standard classification for "The second level of the instrument is higher than the third level" includes: Technical management , Ventilation and air conditioning engineering , Daily use ceramics products , Coupling, brake and speed variator , Textile testing instrument .
Taiwan Provincial Standard of the People's Republic of China
- CNS 7802-1998 Nuclear - Grade Gadolinium Oxide (Gd2O3) Powder
- CNS 8887-1982 Drawing Instruments: Technical Requirements
- CNS 7695-1981 Roller Tongue Type Chain Cable Stoppers for Grade 2 Anchor Chain Cable
Professional Standard - Nuclear Industry
- EJ/T 1104-1999 Pressurized water reactor nuclear power plants 20HR steel plates for class 2,3 equipments
- EJ/T 453-1989 Technical conditions for painting, packaging and transportation of pressure vessels of 300,000-kilowatt pressurized water reactor nuclear power plant safety level 2 and 3
- EJ/T 607-1991 Technical requirements for steel pressure vessels of safety class 2 and 3
- EJ/T 454-1989 300,000-kilowatt pressurized water reactor nuclear power plant primary circuit main and auxiliary system safety first-level, second-level and third-level piping installation technical conditions
- EJ/T 421-1989 Nuclear-grade high-efficiency iodine adsorber for 300,000-kilowatt pressurized water reactor nuclear power plant
- EJ/T 543-1991 Technical conditions of nuclear grade gadolinium trioxide powder
- EJ/T 418-1989 Technical conditions for cleanliness and cleaning process of safety secondary pumps and tertiary pumps in 300,000-kilowatt pressurized water reactor nuclear power plants
- EJ/T 419-1989 300,000 kilowatts pressurized water reactor nuclear power plant safety secondary pump, tertiary pump coating process technical conditions
- EJ/T 1103-1999 Pressurized water reactor nuclear power plants 20MnHR steel plates for class 2,3 equipments
- EJ/T 417-1989 300 MW PWR nuclear power plant safety secondary pumps and tertiary pump packaging technical conditions
Shaanxi Provincial Standard of the People's Republic of China
- DB/6100 ×67 032~033-1988 Black fungus shiitake mushrooms one, two and three species
Professional Standard - Aerospace
- QJ 1570.5-1989 Filling Standard for Specification and Precision Grade of Instrument
Professional Standard - Geology
- DZ/T 0196.9-1997 General technical conditions for logging instrument - instrument indicator grading
Professional Standard - Chemical Industry
- HG/T 22803-2016 The principle and code for reserves of grade 3(2) in chemical mine project
- HG/T 22803-1993 Principles and Regulations for Level 3 (2) Mineral Quantity in Engineering Design of Chemical Mine
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
- GB/T 17939-2015 Nuclear grade high efficiency particulate air filters
- GB/T 17939-2008 Nuclear grade high efficiency particulate air filter
- GB/T 10814-1989 Standard for high grade domestic fine Porcelain of lard white of dehua
- GB/T 17939-1999 Nuclear grade high efficiency particulate air filter
Group Standards of the People's Republic of China
- T/ZZB 0925-2019 High power density supercapacitors
Heilongjiang Provincial Standard of the People's Republic of China
- DB23/T 1796-2016 Super capacitor tester technical requirements
Professional Standard - Machinery
- JB/T 6951-1993 Triphase Side-by-side Connecting Rod Impulse CVT
Guangdong Provincial Standard of the People's Republic of China
- DB44/T 1854-2016 Rating method for color fastness of leather - instrument method
Professional Standard - Textile
- FZ/T 01024-1993 Instrumental assessment of change in colour for determination of grey scale rating
Canadian Standards Association (CSA)
- CSA C22.2 No.66.3-06-2006 Low Voltage Transformers - Part 3: Class 2 and Class 3 Transformers First Edition [: CSA C22.2 NO 66-1988]
SCC
- MIL MIL-DTL-14639/42C-2015 Insignia, Rank, Warrant Officer WO1 and Chief Warrant Officers CW2, CW3 and CW4, U.S. Army
- MIL MIL-DTL-14639/42B-2010 Insignia, Rank, Warrant Officer WO1 and Chief Warrant Officers CW2, CW3 and CW4, U.S. Army
- MIL MIL-DTL-14639/42D-2020 Insignia, Rank, Warrant Officer WO1 and Chief Warrant Officers CW2, CW3 and CW4, U.S. Army
- DIN VDE 0414-6:1995 Instrument transformers - Three-phase voltage transformers for voltage levels having U<(Index)m> up to 52 kV; German version HD 587 S1:1993
- MIL MIL-DTL-14639/42A-1998 INSIGNIA, RANK, WARRANT OFFICER WO1 AND CHIEF WARRANT OFFICERS CW2, CW3 AND CW4, ARMY (SUPERSEDING MIL-DTL-14639/42)
- DANSK DS/EN 13717:2003 Surface active agents - Determination of primary, secondary and tertiary amino nitrogen - Potentiometric titration
- DANSK DS/EN ISO 9702:1998 Plastics - Amine epoxide hardeners - Determination of primary, secondary and tertiary amine group nitrogen content
- NS-EN 13717:2002 Surface active agents — Determination of primary, secondary and tertiary amino nitrogen — Potentiometric titration
- AWWA WQTC71644 Permeate Quality Comparison of MBR and Tertiary Membrane Filtration
- UNE 21587:1996 INSTRUMENT TRANSFORMERS. THREE-PHASE VOLTAGE TRANSFORMERS FOR VOLTAGE LEVELS HAVING Um UP TO 52 KV.
- BS 5386-2:1981 Specification for gas burning appliances-Mini water heaters (2nd and 3rd family gases)
- AWWA WQTC50348 Ultra Low Range Instrument Increases Turbidimetric Sensitivity by Two Orders of Magnitude
- AWWA ACE70806 Making the Advanced Meter Infrastructure (AMI) Business Case
- AWWA MTC69775 A Comparison of MBR and Tertiary Membrane Filtration as Pretreatment for RO within Water Reclamation
- AWWA ACE70807 Making the Advanced Meter Infrastructure (AMI) Business Case
- MIL MIL-DTL-32594-2018 SODIUM PHOSPHATE, TRIBASIC; ANHYDROUS, DODECAHYDRATE, AND MONOHYDRATE, TECHNICAL
- AWWA ACE69027 Two Water Reuse Projects Contrast UV Disinfection and Advanced Oxidation
Indonesia Standards
- SNI 06-3270-1994 Technical grade dichloro diphenyl trichloroethane (DDT)
- SNI 04-3588-1994 Maximum demand indicating instrument, class 1, 0
US-FCR
- FCR COE RPMAS 51180-1978 TERTIARY SAND FILTER
- FCR FED MCD-17-1975 COST-EFFECTIVE COMPARISON OF LAND APPLICATION AND ADVANCED WASTEWATER TREATMENT
AWS - American Welding Society
- QC11-1996 Specification for Qualification and Certification for Level II - Advanced Welders
- EG3.0-1996 Guide for the Training and Qualification of Welding Personnel Level II - Advanced Welder
Defense Logistics Agency
- DLA DSCC-VID-V62/06609-2006 MICROCIRCUIT, DIGITAL, ADVANCED BIPOLAR CMOS, 16-BIT BUS TRANSCEIVER WITH THREE-STATE OUTPUTS, MONOLITHIC SILICON
- DLA SMD-5962-04211-2004 MICROCIRCUIT, DIGITAL, ADVANCED CMOS, 16-BIT BUS TRANSCEIVER WITH THREE-STATE OUTPUTS, MONOLITHIC SILICON
- DLA DSCC-VID-V62/04722 REV A-2005 MICROCIRCUIT, DIGITAL, ADVANCED BIPOLAR CMOS, 3.3-V ABT 32-BIT EDGE-TRIGGERED D-TYPE FLIP-FLOP WITH 3-STATE OUTPUTS, MONOLITHIC SILICON
- DLA SMD-5962-96536 REV E-2009 MICROCIRCUIT, DIGITAL, ADVANCED CMOS, RADIATION HARDENED, 4-BIT MAGNITUDE COMPARATOR, MONOLITHIC SILICON
- DLA SMD-5962-87611 REV E-2012 MICROCIRCUIT, DIGITAL, ADVANCED CMOS, TRIPLE THREE-INPUT AND GATE, MONOLITHIC SILICON
- DLA SMD-5962-83025 REV H-2005 MICROCIRCUIT, DIGITAL, BIPOLAR, ADVANCED LOW-POWER SCHOTTKY TTL, 4-BIT UP/DOWN BINARY COUNTER, MONOLITHIC SILICON
- DLA SMD-5962-91606 REV A-2006 MICROCIRCUIT, DIGITAL, ADVANCED CMOS, 10-BIT D FLIP-FLOP WITH THREE-STATE OUTPUTS, MONOLITHIC SILICON
- DLA SMD-5962-85003 REV E-2011 MICROCIRCUIT, DIGITAL, HIGH-SPEED CMOS, 14 STAGE BINARY COUNTER, MONOLITHIC SILICON
- DLA SMD-5962-88712 REV A-2010 MICROCIRCUIT, DIGITAL, BIPOLAR, ADVANCED SCHOTTKY, 8-BIT IDENTITY COMPARATOR, MONOLITHIC SILICON
- DLA SMD-5962-06238 REV A-2007 MICROCIRCUIT, DIGITAL, RADIATION HARDENED, ADVANCED CMOS, 8-BIT UNIVERSAL SHIFT/STORAGE REGISTER WITH THREE-STATE OUTPUTS, MONOLITHIC SILICON
- DLA SMD-5962-96818 REV B-2010 MICROCIRCUIT, DIGITAL, ADVANCED HIGH SPEED CMOS, BUS TRANSCEIVER WITH THREE-STATE OUTPUTS, MONOLITHIC SILICON
- DLA SMD-5962-90916 REV A-1998 MICROCIRCUITS, DIGITAL, ADVANCED CMOS, 8-BIT MAGNITUDE COMPARATOR, MONOLITHIC SILICON
- DLA SMD-5962-04210-2004 MICROCIRCUIT, DIGITAL, ADVANCED CMOS, 16-BIT BUFFER/DRIVER WITH THREE-STATE OUTPUTS, MONOLITHIC SILICON
- DLA MIL-M-38510/347 A VALID NOTICE 2-2013 Microcircuits, Digital, Bipolar, Advanced Schottky TTL, 8-Bit Identity Comparator, Monolithic Silicon
- DLA SMD-5962-84151 REV A-2005 MICROCIRCUITS, DIGITAL, LOW POWER SCHOTTKY TTL, MAGNITUDE COMPARATOR, MONOLITHIC SILICON
- DLA MIL-M-38510/347 A VALID NOTICE 1-2009 Microcircuits, Digital, Bipolar, Advanced Schottky TTL, 8-Bit Identity Comparator, Monolithic Silicon
- DLA SMD-5962-84153 REV B-2003 MICROCIRCUIT, DIGITAL, LOW-POWER SCHOTTKY TTL, MAGNITUDE COMPARATOR, MONOLITHIC SILICON
- DLA SMD-5962-88710 REV A-2010 MICROCIRCUIT, DIGITAL, BIPOLAR, ADVANCED SCHOTTKY TTL, 8-BIT IDENTITY COMPARATOR, MONOLITHIC SILICON
- DLA SMD-5962-84152 REV C-2005 MICROCIRCUIT, DIGITAL, LOW-POWER SCHOTTKY TTL, MAGNITUDE COMPARATOR, MONOLITHIC SILICON
- DLA SMD-5962-85004 REV F-2009 MICROCIRCUIT, DIGITAL, HIGH-SPEED CMOS, ASYNCHRONOUS 12 STAGE BINARY COUNTER, MONOLITHIC SILICON
- DLA SMD-5962-93253 REV D-2009 MICROCIRCUIT, DIGITAL, ADVANCED CMOS, QUAD BUFFER WITH THREE-STATE OUTPUTS, MONOLITHIC SILICON
- DLA SMD-5962-96807 REV A-2009 MICROCIRCUIT, DIGITAL, ADVANCED HIGH SPEED CMOS, OCTAL BUFFER/DRIVER WITH INVERTING THREE-STATE OUTPUTS, MONOLITHIC SILICON
- DLA SMD-5962-96850 REV B-2008 MICROCIRCUIT, DIGITAL, ADVANCED HIGHSPEED CMOS, OCTAL BUFFER/DRIVER WITH THREE-STATE OUTPUTS, MONOLITHIC SILICON
- DLA SMD-5962-04210 REV A-2011 MICROCIRCUIT, DIGITAL, ADVANCED CMOS, 16-BIT BUFFER/DRIVER WITH THREE-STATE OUTPUTS, MONOLITHIC SILICON
- DLA MIL-M-38510/343 B VALID NOTICE 2-2013 Microcircuits, Digital, Bipolar, Advanced Schottky TTL, Binary Counters, Monolithic Silicon
- DLA SMD-5962-95652 REV D-2010 MICROCIRCUIT, DIGITAL, RADIATION HARDENED, ADVANCED CMOS, TRIPLE THREE-INPUT NAND GATE, MONOLITHIC SILICON
- DLA SMD-5962-89582 REV B-2009 MICROCIRCUIT, DIGITAL, ADVANCED CMOS, SYNCHRONOUS PRESETTABLE BINARY COUNTER, MONOLITHIC SILICON
- DLA SMD-5962-06244 REV A-2007 MICROCIRCUIT, DIGITAL, RADIATION HARDENED CMOS, 16-BIT BIDIRECTIONAL TRANSCEIVER, TTL COMPATIBLE INPUTS, AND THREE-STATE OUTPUTS, MONOLITHIC SILICON
- DLA MIL-M-38510/343 B VALID NOTICE 1-2009 Microcircuits, Digital, Bipolar, Advanced Schottky TTL, Binary Counters, Monolithic Silicon
- DLA SMD-5962-89561 REV C-2011 MICROCIRCUIT, DIGITAL, ADVANCED CMOS, SYNCHRONOUS PRESETTABLE BINARY COUNTER, MONOLITHIC SILICON
- DLA SMD-5962-89682 REV C-2011 MICROCIRCUIT, DIGITAL, ADVANCED CMOS, OCTAL TRANSCEIVER/REGISTER WITH THREE-STATE OUTPUTS, MONOLITHIC SILICON
- DLA DSCC-VID-V62/04761 REV A-2011 MICROCIRCUIT, DIGITAL, ADVANCED HIGH SPEED CMOS, OCTAL BUFFER/DRIVER, WITH 3-STATE OUTPUTS, TTL COMPATIBLE INPUTS, MONOLITHIC SILICON
- DLA SMD-5962-88578 REV C-2008 MICROCIRCUIT, DIGITAL, BIPOLAR, ADVANCED LOW POWER SCHOTTKY TTL, 8-BIT IDENTITY COMPARATOR, MONOLITHIC SILICON
- DLA SMD-5962-84032 REV C-2005 MICROCIRCUITS, DIGITAL, ADVANCED LOW POWER SCHOTTKY TTL, DUAL 4-BIT TRANSPARENT LATCH, MONOLITHIC SILICON
American Welding Society (AWS)
- AWS EG3.0-1996 Guide for the Training and Qualification of Welding Personnel Level II - Advanced Welder
German Institute for Standardization
- DIN EN 13717:2003 Surface active agents - Determination of primary, secondary and tertiary amino nitrogen - Potentiometric titration; German version EN 13717:2002
- DIN EN ISO 18753:2006 Fine ceramics (advanced ceramics, advanced technical ceramics) - Determination of absolute density of ceramic powders by pyknometer (ISO 18753:2004); English version of DIN EN ISO 18753:2006
- DIN 75001:1981 Classes of Application for Measuring Devices in Motor Vehicles
- DIN EN ISO 18753:2018 Fine ceramics (advanced ceramics, advanced technical ceramics) - Determination of absolute density of ceramic powders by pycnometer (ISO 18753:2017)
- DIN EN ISO 18757:2006 Fine ceramics (advanced ceramics, advanced technical ceramics) - Determination of specific surface area of ceramic powders by gas adsorption using the BET method (ISO 18757:2003); English version of DIN EN ISO 18757:2006
European Committee for Standardization (CEN)
- EN 13717:2002 Surface active agents - Determination of primary, secondary and tertiary amino nitrogen - Potentiometric titration
- EN ISO 18753:2017 Fine ceramics (advanced ceramics@ advanced technical ceramics) - Determination of absolute density of ceramic powders by pycnometer
- EN ISO 19628:2021 Fine ceramics (advanced ceramics, advanced technical ceramics) - Thermophysical properties of ceramic composites - Determination of specific heat capacity (ISO 19628:2017)
- EN ISO 8559-2:2020 Size designation of clothes - Part 2: Primary and secondary dimension indicators (ISO 8559-2:2017)
RU-GOST R
- GOST R 52314-2005 Standard thermoelectric platinumrhodium/platinum and platinumrhodium/platinumrhodium converters of the first, second and third grades. General technical requirements
Instrument Society of America (ISA)
- ISA ADV PH MEAS CNTRL-2005 Advanced pH Measurement and Control (Third Edition)
TIA - Telecommunications Industry Association
- TIA-102.CAEB-2009 Project 25 Conformance Profile Level Two – Advanced Conventional Operation
(U.S.) Telecommunications Industries Association
- TIA-102.CAEB-A-2016 Project 25 Conformance Profile Level Two-Advanced Conventional Operation
API - American Petroleum Institute
- API RP 557-2013 Guide to Advanced Control Systems (SECOND EDITION)
- API 4202-1973 PROGRAM FOR UPGRADING THE NO2 INSTRUMENTATION EMPLOYED IN THE 1972 CHATTANOOGA NO2 EXPOSURE STUDY
ISA - International Society of Automation
- ISA ADV TEMP MEAS CNTRL-2011 Advanced Temperature Measurement and Control (Second Edition)
Society of Automotive Engineers (SAE)
- SAE AMS3819B-2001 Cloths, Cleaning for Aircraft Primary and Secondary Structural Surfaces
- SAE AMS7907D-2018 Beryllium Bars, Rods, Tubing, and Shapes Instrument Grade
- SAE AMS7907A-2001 Beryllium Bars, Rods, Tubing, and Shapes Instrument Grade
- SAE AMS7907D-2015 Beryllium Bars@ Rods@ Tubing@ and Shapes Instrument Grade
Standard Association of Australia (SAA)
- AS/NZS 2286:2001 Space heaters - Secondary guards
American Society for Testing and Materials (ASTM)
- ASTM D2074-07(2019) Standard Test Methods for Total, Primary, Secondary, and Tertiary Amine Values of Fatty Amines by Alternative Indicator Method
Danish Standards Foundation
- DS/EN ISO 18753:2006 Fine ceramics (advanced ceramics, advanced technical ceramics) - Determination of absolute density of ceramic powders by pyknometer
- DS/EN ISO 18757:2006 Fine ceramics (advanced ceramics, advanced technical ceramics) - Determination of specific surface area of ceramic powders by gas adsorption using the BET method
GSO
- GSO OIML R34:2005 ACCURACY CLASSES OF MEASURING INSTRUMENTS
- OS GSO OIML R34:2005 ACCURACY CLASSES OF MEASURING INSTRUMENTS
Association Francaise de Normalisation
- NF B42-007:2006 Fine ceramics (advanced ceramics, advanced technical ceramics) - Determination of absolute density of ceramic powders by pyknometer.
- NF B42-007*NF EN ISO 18753:2017 Fine ceramics (advanced ceramics, advanced technical ceramics) - Determination of absolute density of ceramic powders by pycnometer
- NF B43-365*NF EN ISO 19628:2021 Fine ceramics (advanced ceramics, advanced technical ceramics) - Thermophysical properties of ceramic composites - Determination of specific heat capacity
- NF A92-810*NF EN ISO 18452:2016 Fine ceramics (advanced ceramics, advanced technical ceramics) - Determination of thickness of ceramic films by contact-probe profilometer
International Organization for Standardization (ISO)
- ISO 18753:2004 Fine ceramics (advanced ceramics, advanced technical ceramics) - Determination of absolute density of ceramic powders by pyknometer
- ISO 19628:2017 Fine ceramics (advanced ceramics, advanced technical ceramics) - Thermophysical properties of ceramic composites - Determination of specific heat capacity
- ISO 8559-2:2017 Size designation of clothes - Part 2: Primary and secondary dimension indicators
- ISO 18757:2003 Fine ceramics (advanced ceramics, advanced technical ceramics) - Determination of specific surface area of ceramic powders by gas adsorption using the BET method
CZ-CSN
- CSN IEC 225:1994 Octave, half-octave and third-octave band filters intended for the analysis of sounds and vibrations
British Standards Institution (BSI)
- BS EN ISO 18753:2006 Fine ceramics (advanced ceramics, advanced technical ceramics) - Determination of absolute density of ceramic powders by pyknometer
- BS ISO 19628:2017 Fine ceramics (advanced ceramics, advanced technical ceramics). Thermophysical properties of ceramic composites. Determination of specific heat capacity
- BS EN ISO 18757:2006 Fine ceramics (advanced ceramics, advanced technical ceramics) - Determination of specific surface area of ceramic powders by gas adsorption using the BET method
(U.S.) Ford Automotive Standards
- FORD M98G47-A-1986 SECONDARY LOW E SOLUTION
American National Standards Institute (ANSI)
- ANSI/UL 497A-2004 Standard for Safety for Secondary Protectors for Communications Circuits (Proposal dated June 27, 2008)
- ANSI/SCTE TP206-2000 Composite Distortion Measurement (Composite Triple Beat & Composite Second Order)
Korean Agency for Technology and Standards (KATS)
- KS B 5343-2022 Automatic check weighing and weight grading instruments
- KS B 5343-2017 Automatic check weighing and weight grading instruments
- KS B 5343-2017(2022) Automatic check weighing and weight grading instruments
CEPT - Conference Europeenne des Administrations des Postes et des Telecommunications
- CEPT T/TR 04-03 E-1985 Digital Radio-Relay Systems with Input Bit Rates Higher Than the Second Hierarchical Level in the 17.1 to 19.7 GHz Band
International Electrotechnical Commission (IEC)
- IEC 61226:2009 Nuclear power plants - Instrumentation and control important to safety - Classification of instrumentation and control functions
International Telecommunication Union (ITU)
- ITU-T G.751 SPANISH-1993 DIGITAL MULTIPLEX EQUIPMENTS OPERATING AT THE THIRD ORDER BIT RATE OF 34 368 kbit/s AND THE FOURTH ORDER BIT RATE OF 139 264 kbit/s AND USING POSITIVE JUSTIFICATION
- ITU-T Q.822-1994 Stage 1 Stage 2 and Stage 3 Description for the Q3 Interface - Performance Management - Specifications of Signalling System No. 7 (Study Group 11) 54 pp
(U.S.) Joint Electron Device Engineering Council Soild State Technology Association
- JEDEC JESD82-20-2007 FBDIMM: Advanced Memory Buffer (AMB)
Lithuanian Standards Office
- LST EN ISO 18753:2005 Fine ceramics (advanced ceramics, advanced technical ceramics) - Determination of absolute density of ceramic powders by pyknometer (ISO 18753:2004)
IT-UNI
- UNI EN ISO 19628:2021 Fine ceramics (advanced ceramics, advanced technical ceramics) - Thermophysical properties of ceramic composites - Determination of specific heat capacity
VN-TCVN
- TCVN 5755-1993 Measuring instruments.Class of accuracy.General requirements
- TCVN 6164-1996 Principles for the establishment of hierarchy schemes for measuring instruments
SAE - SAE International
- SAE AMS7907-1995 Beryllium Bars@ Rods@ Tubing@ and Shapes Instrument Grade
ASHRAE - American Society of Heating@ Refrigerating and Air-Conditioning Engineers@ Inc.
- ASHRAE AT-96-20-2-1996 Simulation of Hybrid Heat Pumps with Two- and Three-Stage Solution Circuits for High-Lift Applications
IEEE - The Institute of Electrical and Electronics Engineers@ Inc.
- IEEE C57.12.44 INT 1-2008 Standard Requirements for Secondary Network Protectors
- IEEE C57.12.44-1994 Standard Requirements for Secondary Network Protectors
- IEEE C57.12.44-2005 Standard Requirements for Secondary Network Protectors
- IEEE C57.12.44-2000 Standard Requirements for Secondary Network Protectors
U.S. Military Regulations and Norms
- ARMY MIL-DTL-3628/253-2009 BADGE, QUALIFICATION, UNMANNED AIRCRAFT SYSTEMS BASIC, SENIOR, MASTER GRADES, AIR FORCE
Institute of Electrical and Electronics Engineers (IEEE)
- IEEE Std C57.12.44-2000 Standard Requirements for Secondary Network Protectors
SE-SIS
- SIS SS IEC 225:1985 Acoustics - Octave, half-octave and third-octave band filters intended for the analysis of sounds and vibrations