constant

constant, Total:54 items.

The international standard classification for "constant" includes: Piezoelectric and dielectric devices , Mechanical testing of metals , Non-destructive testing of metals , Ignitability and burning behaviour of materials and products , Protection against fire in general , Rubber , Insulating gases , Extraction and processing of petroleum and natural gas , Chemical reagents .

The Chinese standard classification for "constant" includes: Metal physical property test method , Fire-fighting in general , Special electronic technology material , Rubber products in general , Electrical insulating material and its products , Petroleum extraction , Chemical reagent in general , Technical management , Technical Management .

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Professional Standard - Petrochemical Industry

• NB/SH/T 0835-2010 Standard Test Method for Calculation of Viscosity-gravity Constant (Vgc) of Petroleum Oils

General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China

• GB/T 5985-2003 Test method for specific flexivity constant of ther mostat metals
• GB/T 5654-1985 Measurement of relative permittivity,dielectric dissipation factor at power frequency and volume resistivity of insulating liquids
• GB/T 11309-1989 Test methods for the properties of piezoelectric ceramics--Quasi-static test for piezoelectric strain constant d33
• GB/T 1694-1981 Vulcanized rubber--Test method for HF dielectric constant and dielectric loss angular tangent value
• GB/T 12634-1990 Test methods for electroelastic contants of piezoelectric crystals
• GB/T 17802-1999 Thermal analysis test methods for kinetic constants of combustible materials
• GB/T 17802-2011 Thermal analysis test methods for kinetic constants of combustible materials
• GB/T 5441.7-1985 Test methods for communication cable--Attenuation coefficient test--Open and short circuit method
• GB/T 5597-1999 Test method for complex permittivity of solid dielectric materials at microwave frequencies
• GB/T 30654-2014 Test method for lattice constant of Ⅲ-nitride epitaxial layers
• GB/T 3389.2-1999 Test methods for the properties of piezoelectric ceramics. Static test for piezoelectric strain constant d33

Professional Standard - Petroleum

• SY 6528-2002 Measuring method of rock sample dielectric constant
• SY/T 6528-2002 Test method of the rock dielectric constant

Group Standards of the People's Republic of China

• T/CSTM 00313-2021 Testing method of optical constants for 0ptical thin films based on spectro-photo-metric method

Professional Standard - Ferrous Metallurgy

• YB/T 5337-2006 The lattice constant determination of metals -- Method of X-ray diffractometer

Professional Standard - Chemical Industry

• HG/T 3500-1982 Method for Determination of Polarity Constant of Chemical Reagent Gas Chromatography Stationary Liquid
• HG/T 3500-2011 Chemical reagent-Test method for polarity constant of liquid stationary phase in gas chromatography

农业农村部

• NY/T 1860.30-2016 Guidelines on the determination of physico-chemical properties of pesticides. Part 30:Dissociation constant in water

Professional Standard-Ships

• CB/Z 165-1979 Measurement method of isostatic piezoelectric strain constant dH for piezoelectric ceramic materials

Professional Standard - Electron

• SJ/T 10142-1991 Test methods for complex pemittivity of dielectric material in microwave frequency band-Method for terminal open circuit of coaxial feeder
• SJ/T 11469-2014 Test methods for the piezoelectric properties of ceramics shear piezoelectric strain constant d15 testing on quasi-static principle
• SJ 20512-1995 Test methods for permittivity and permeability of microwave high loss solid materials

Military Standard of the People's Republic of China-General Armament Department

• GJB 1615-1993 Methods for determination of physical constants of poisons

BE-NBN

• NBN 100-1949 normal number

CZ-CSN

• CSN 38 5509-1962 Teohnical gas constants
• CSN ON 25 8012-1964 Thermometer and thermometer time constants

SCC

• AENOR UNE 4003-2 EX:1962 NORMAL NUMBERS. CLARIFICATIONS
• AENOR UNE 4003-1 EX:1960 NORMAL NUMBERS. SERIES OF NORMAL NUMBERS
• BS 1339:1946 Humidity of the air definitions, formulae and constants

IPC - Association Connecting Electronics Industries

• IPC TM-650 2.5.5.2A-1987 Dielectric Constant and Dissipation Factor of Printed Wiring Board Material - Clip Method
• IPC TM-650 2.5.5.3C-1987 Permittivity (Dielectric Constant) and Loss Tangent (Dissipation Factor) of Materials (Two Fluid Cell Method)
• IPC TM-650 2.5.5.5B-1995 Stripline Test for Permittivity and Loss Tangent (Dielectric Constant and Dissipation Factor) at X-Band
• IPC TM-650 2.5.5.5C-1998 Stripline Test for Permittivity and Loss Tangent (Dielectric Constant and Dissipation Factor) at X-Band
• IPC TM-650 2.5.5A-1975 Dielectric Constant of Printed Wiring Materials

American Society for Testing and Materials (ASTM)

• ASTM D1082-17(2024) Standard Test Method for Dissipation Factor and Permittivity (Dielectric Constant) of Mica
• ASTM D1082-17 Standard Test Method for Dissipation Factor and Permittivity (Dielectric Constant) of Mica
• ASTM F498-19 Standard Test Method for Center Spring Constant and Spring Constant Balance of Alpine Skis
• ASTM F498-77(2006) Standard Test Method for Center Spring Constant and Spring Constant Balance of Alpine Skis
• ASTM F498-12 Standard Test Method for Center Spring Constant and Spring Constant Balance of Alpine Skis
• ASTM F498-77(1998) Standard Test Method for Center Spring Constant and Spring Constant Balance of Alpine Skis
• ASTM D2149-13 Standard Test Method for Permittivity (Dielectric Constant) And Dissipation Factor Of Solid Ceramic Dielectrics At Frequencies To 10 MHz And Temperatures To 500&#176C
• ASTM RR-D27-1015 2003 D0924-Test Method for Dissipation Factor (or Power Factor) and Relative Permittivity (Dielectric Constant) of Electrical Insulating Liquids
• ASTM D924-23 Standard Test Method for Dissipation Factor (or Power Factor) and Relative Permittivity (Dielectric Constant) of Electrical Insulating Liquids
• ASTM D150-18 Standard Test Methods for AC Loss Characteristics and Permittivity (Dielectric Constant) of Solid Electrical Insulation

Spanish Association for Standardization (UNE)

• UNE 21317:1989 MEASUREMENT OF RELATIVE PERMITIVITY, DIELECTRIC DISSIPATION FACTOR ON D.C. RESISTIVITY OF INSULATING LIQUIDS.

RO-ASRO

• STAS 283-1969 regular numbers

Korean Agency for Technology and Standards (KATS)

• KS C 2135-2021 Testing methods for AC loss characteristics and permittivity(Dielectric constant) of solid electrical insulation
• KS C 2135-1996(2021) Testing methods for AC loss characteristics and permittivity(Dielectric constant) of solid electrical insulation
• KS C 2136-2021 Testing methods for complex permittivity (Dielectric constant) of solid electrical insulating materials at high frequencies and high temperatures
• KS C 2136-1996(2016) Testing methods for complex permittivity (Dielectric constant) of solid electrical insulating materials at high frequencies and high temperatures
• KS C 2136-1996(2021) Testing methods for complex permittivity (Dielectric constant) of solid electrical insulating materials at high frequencies and high temperatures

Institute of Electrical and Electronics Engineers (IEEE)

• IEEE Std 178-1958*ANSI C83.23-1960 IEEE Standards on Piezoelectric Crystals:Determination of The Elastic. Piezoelectric and Dielectric Constants- The Electro mechanical Coupling Factor, 1958

American National Standards Institute （ANSI)

• ANSI/ASTM D150:2018 Standard Test Methods for AC Loss Characteristics and Permittivity (Dielectric Constant) of Solid Electrical Insulation

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