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Database: 365,228(8 Aug 2026)

Gas phase standard curve

Gas phase standard curve, Total:289 items.

The international standard classification for "Gas phase standard curve" includes: Noise with respect to human beings , Optical measuring instruments .

The Chinese standard classification for "Gas phase standard curve" includes: Acoustic Measurement , Optical testing instrument .


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

  • GB/T 36063-2018 Nanotechnologies—Raman shift standard curve for spectrometer calibration
  • GB/T 36063-2018e Nanotechnologies—Raman shift standard curve for spectrometer calibration
  • GB/T 36063-2018(英文版) Nanotechnology: Standard Raman frequency shift curves for Raman spectroscopy calibration
  • GB/T 4963-2007 Acoustics—Normal equal-loudness-level contours

Guizhou Provincial Standard of the People's Republic of China

Group Standards of the People's Republic of China

Professional Standard - Chemical Industry

  • HG/T 2953-1986 Standard Layout for Analytical Method by Gas Chromatography (Former GB/T 2307-1986)

American Society for Testing and Materials (ASTM)

  • ASTM E746-93(1998) Standard Test Method for Determining Relative Image Quality Response of Industrial Radiographic Film
  • ASTM E746-02 Standard Test Method for Determining Relative Image Quality Response of Industrial Radiographic Film
  • ASTM D2493/D2493M-09 Standard Viscosity-Temperature Chart for Asphalts
  • ASTM E561-19e1 Standard Test Method for K R Curve Determination
  • ASTM E561-21 Standard Test Method for K R Curve Determination
  • ASTM E561-20 Standard Test Method for K R Curve Determination
  • ASTM E746-07 Standard Practice for Determining Relative Image Quality Response of Industrial Radiographic Imaging Systems
  • ASTM E561-22 Standard Test Method for K R Curve Determination
  • ASTM E561-19 Standard Test Method for K R Curve Determination
  • ASTM E561-10e1 Standard Test Method for K-R Curve Determination
  • ASTM E561-08e1 Standard Test Method for K-R Curve Determination
  • ASTM E561-98 Standard Practice for R-Curve Determination
  • ASTM E561-15 Standard Test Method for K R Curve Determination
  • ASTM E561-08 Standard Test Method for K-R Curve Determination
  • ASTM D7164-21 Standard Practice for On-line/At-line Heating Value Determination of Gaseous Fuels by Gas Chromatography
  • ASTM E561-05 Standard Test Method for K-R Curve Determination
  • ASTM E561-05e1 Standard Test Method for K-R Curve Determination
  • ASTM E561-10e2 Standard Test Method for K-R Curve Determination
  • ASTM E561-15a Standard Test Method for K R Curve Determination
  • ASTM E2955-13 Standard Practice for Simulating Profilograph Response to Longitudinal Profiles of Traveled Surfaces
  • ASTM F1832-97 Standard Test Method for Determining the Force-Draw and Let-Down Curves for Archery Bows
  • ASTM F1832-07(2017) Standard Test Method for Determining the Force-Draw and Let-Down Curves for Archery Bows
  • ASTM D1336-07(2011) Standard Test Method for Distortion of Yarn in Woven Fabrics
  • ASTM D7165-10(2015) Standard Practice for Gas Chromatograph Based On-line/At-line Analysis for Sulfur Content of Gaseous Fuels
  • ASTM E2218-02(2008) Standard Test Method for Determining Forming Limit Curves
  • ASTM B478-85(1997)e1 Standard Test Method for Cross Curvature of Thermostat Metals
  • ASTM D87-07a Standard Test Method for Melting Point of Petroleum Wax (Cooling Curve)
  • ASTM E2218-15 Standard Test Method for Determining Forming Limit Curves
  • ASTM B478-85(2008) Standard Test Method for Cross Curvature of Thermostat Metals
  • ASTM E2218-23 Standard Test Method for Determining Forming Limit Curves
  • ASTM D87-07 Standard Test Method for Melting Point of Petroleum Wax (Cooling Curve)
  • ASTM E561-10 Standard Test Method for K-R Curve Determination
  • ASTM E2218-14 Standard Test Method for Determining Forming Limit Curves
  • ASTM E2218-14e1 Standard Test Method for Determining Forming Limit Curves
  • ASTM D87-09(2014) Standard Test Method for Melting Point of Petroleum Wax 40;Cooling Curve41;
  • ASTM D7165-22 Standard Practice for Gas Chromatograph Based On-line/At-line Analysis for Sulfur Content of Gaseous Fuels
  • ASTM D87-09 Standard Test Method for Melting Point of Petroleum Wax (Cooling Curve)
  • ASTM D87-09(2018) Standard Test Method for Melting Point of Petroleum Wax (Cooling Curve)
  • ASTM D7164-10(2015) Standard Practice for On-line/At-line Heating Value Determination of Gaseous Fuels by Gas Chromatography
  • ASTM D1336-07(2015) Standard Test Method for Distortion of Yarn in Woven Fabrics
  • ASTM E1742-00 Standard Practice for Radiographic Examination
  • ASTM B913-00 Standard Test Method for Evaluation of Crimped Electrical Connections to 16-Gauge and Smaller Diameter Stranded and Solid Conductors
  • ASTM B913-00e1 Standard Test Method for Evaluation of Crimped Electrical Connections to 16-Gauge and Smaller Diameter Stranded and Solid Conductors
  • ASTM D1336-97 Standard Test Method for Distortion of Yarn in Woven Fabrics
  • ASTM E2218-02 Standard Test Method for Determining Forming Limit Curves
  • ASTM D6068-96(2002)e1 Standard Test Method for Determining J-R Curves of Plastic Materials
  • ASTM D6068-10 Standard Test Method for Determining J-R Curves of Plastic Materials
  • ASTM D1336-97(2003) Standard Test Method for Distortion of Yarn in Woven Fabrics
  • ASTM F3141-23 Standard Guide for Total Knee Replacement Loading Profiles
  • ASTM D7165-10 Standard Practice for Gas Chromatograph Based On-line/At-line Analysis for Sulfur Content of Gaseous Fuels
  • ASTM D1711-08 Standard Terminology Relating to Electrical Insulation
  • ASTM D4150-03 Standard Terminology Relating to Gaseous Fuels
  • ASTM D6068-10(2018) Standard Test Method for Determining J-R Curves of Plastic Materials
  • ASTM D4849-02B(2007)e2 Standard Terminology Related to Yarns and Fibers
  • ASTM D4849-02b(2007)e1 Standard Terminology Related to Yarns and Fibers
  • ASTM D3883-04 Standard Test Method for Yarn Crimp or Yarn Take-up in Woven Fabrics
  • ASTM D4150-00 Standard Terminology Relating to Gaseous Fuels
  • ASTM D4150-08 Standard Terminology Relating to Gaseous Fuels
  • ASTM D6799-08 Standard Terminology Relating to Inflatable Restraints
  • ASTM D1711-11 Standard Terminology Relating to Electrical Insulation
  • ASTM D4150-08(2016) Standard Terminology Relating to Gaseous Fuels
  • ASTM D1711-11a Standard Terminology Relating to Electrical Insulation
  • ASTM D1711-13 Standard Terminology Relating to Electrical Insulation
  • ASTM D7164-10 Standard Practice for On-line/At-line Heating Value Determination of Gaseous Fuels by Gas Chromatography
  • ASTM D1946-90(1994)e1 Standard Practice for Analysis of Reformed Gas by Gas Chromatography
  • ASTM E2007-10(2016) Standard Guide for Computed Radiography
  • ASTM D6068-96 Standard Test Method for Determining J-R Curves of Plastic Materials
  • ASTM D1946-90(2000) Standard Practice for Analysis of Reformed Gas by Gas Chromatography
  • ASTM D6799-07 Standard Terminology Relating to Inflatable Restraints
  • ASTM E260-96(2019) Standard Practice for Packed Column Gas Chromatography
  • ASTM E561-23 Standard Test Method for K R Curve Determination
  • ASTM E2007-10 Standard Guide for Computed Radiography
  • ASTM E2007-08 Standard Guide for Computed Radiography
  • ASTM E1742/E1742M-12 Standard Practice for Radiographic Examination
  • ASTM E3398-23 Standard Guide for Digital Neutron Radiography
  • ASTM C1464-16 Standard Specification for Bent Glass
  • ASTM C1464-00 Standard Specification for Bent Glass
  • ASTM C1464-21 Standard Specification for Bent Glass
  • ASTM D3064-97(2013) Standard Terminology Relating To Aerosol Products
  • ASTM D6799-13 Standard Terminology Relating to Inflatable Restraints
  • ASTM E260-85 Standard Practice for Packed Column Gas Chromatography
  • ASTM D1711-24 Standard Terminology Relating to Electrical Insulation
  • ASTM D1946-90(2019) Standard Practice for Analysis of Reformed Gas by Gas Chromatography
  • ASTM E260-96 Standard Practice for Packed Column Gas Chromatography
  • ASTM E260-91 Standard Practice for Packed Column Gas Chromatography
  • ASTM D4150-23a Standard Terminology Relating to Gaseous Fuels
  • ASTM C1464-06 Standard Specification for Bent Glass
  • ASTM E1254-13(2018) Standard Guide for Storage of Radiographs and Unexposed Industrial Radiographic Films
  • ASTM E94/E94M-22 Standard Guide for Radiographic Examination Using Industrial Radiographic Film
  • ASTM D6477-02a Standard Terminology Relating to Tire Cord and Fabrics
  • ASTM E1254-03 Standard Guide for Storage of Radiographs and Unexposed Industrial Radiographic Films
  • ASTM D4452-85 Standard Methods for X-Ray Radiography of Soil Samples
  • ASTM C1464-06(2011) Standard Specification for Bent Glass
  • ASTM F1832-07 Standard Test Method for Determining the Force-Draw and Let-Down Curves for Archery Bows
  • ASTM E1541-98(2003) Standard Practice for Specifying and Matching Color Using the Colorcurve System
  • ASTM E2948-14 Standard Test Method for Conducting Rotating Bending Fatigue Tests of Solid Round Fine Wire
  • ASTM D4452/D4452M-22 Standard Practice for X-Ray Radiography of Soil Samples
  • ASTM D445-18 Standard Practice for X-Ray Radiography of Soil Samples
  • ASTM B913-05(2010) Standard Test Method for Evaluation of Crimped Electrical Connections to 16-Gauge and Smaller Diameter Stranded and Solid Conductors
  • ASTM B913-05 Standard Test Method for Evaluation of Crimped Electrical Connections to 16-Gauge and Smaller Diameter Stranded and Solid Conductors
  • ASTM E390-20 Standard Reference Radiographs for Steel Fusion Welds
  • ASTM D1946-77 Standard Method for Analysis Of Reformed Gas By Gas Chromatography
  • ASTM D1946-82 Standard Method for Analysis of Reformed Gas by Gas Chromatography
  • ASTM D3888-07 Standard Terminology for Yarn Spinning Systems
  • ASTM D4452-85(1995)e1 Standard Methods for X-Ray Radiography of Soil Samples
  • ASTM F2336-17 Standard Guide for Roller Hockey Playing Facilities
  • ASTM E390-01 Standard Reference Radiographs for Steel Fusion Welds
  • ASTM E431-96(2022) Standard Guide to Interpretation of Radiographs of Semiconductors and Related Devices
  • ASTM E1936-20 Standard Reference Radiograph for Evaluating the Performance of Radiographic Digitization Systems
  • ASTM D1945-14(2019) Standard Test Method for Analysis of Natural Gas by Gas Chromatography
  • ASTM D4849-02B(2007)e3 Standard Terminology Related to Yarns and Fibers
  • ASTM D4849-13 Standard Terminology Related to Yarns and Fibers
  • ASTM E1320-20 Standard Reference Radiographs for Titanium Castings
  • ASTM E1390-90(2000) Standard Guide for Illuminators Used for Viewing Industrial Radiographs
  • ASTM E355-96(2007) Standard Practice for Gas Chromatography Terms and Relationships
  • ASTM D3883-04(2008) Standard Test Method for Yarn Crimp and Yarn Take-up in Woven Fabrics
  • ASTM D3883-04(2012) Standard Test Method for Yarn Crimp and Yarn Take-up in Woven Fabrics
  • ASTM F1832-07(2011) Standard Test Method for Determining the Force-Draw and Let-Down Curves for Archery Bows
  • ASTM E1390-21 Standard Specification for Illuminators Used for Viewing Industrial Radiographs
  • ASTM C1656-07 Standard Guide for Measuring the Reactivity of Hydraulic Refractory Castables using Exothermic Profile
  • ASTM D3883-99 Standard Test Method for Yarn Crimp or Yarn Take-up in Woven Fabrics
  • ASTM E1541-98 Standard Practice for Specifying and Matching Color Using the Colorcurve System
  • ASTM E2023-19 Standard Practice for Fabrication of Neutron Radiographic Sensitivity Indicators
  • ASTM D1711-24a Standard Terminology Relating to Electrical Insulation
  • ASTM E260-96(2001) Standard Practice for Packed Column Gas Chromatography
  • ASTM D5160-95(2003) Standard Guide for Gas-Phase Adsorption Testing of Activated Carbon
  • ASTM D1945-03 Standard Test Method for Analysis of Natural Gas by Gas Chromatography
  • ASTM E748-19 Standard Guide for Thermal Neutron Radiography of Materials
  • ASTM D1946-90(2011) Standard Practice for Analysis of Reformed Gas by Gas Chromatography
  • ASTM D1945-03(2010) Standard Test Method for Analysis of Natural Gas by Gas Chromatography
  • ASTM D1945-91 Standard Test Method for Analysis of Natural Gas by Gas Chromatography
  • ASTM D1945-96e1 Standard Test Method for Analysis of Natural Gas by Gas Chromatography
  • ASTM E689-20 Standard Reference Radiographs for Ductile Iron Castings
  • ASTM D7266-07e1 Standard Test Method for Analysis of Cyclohexane by Gas Chromatography (External Standard)
  • ASTM E505-01 Standard Reference Radiographs for Inspection of Aluminum and Magnesium Die Castings
  • ASTM D3813/D3813M-98(2003) Standard Test Method for Curling and Twisting on Unwinding of Pressure-Sensitive Tapes
  • ASTM E748-16 Standard Guide for Thermal Neutron Radiography of Materials
  • ASTM D3813/D3813M-98 Standard Test Method for Curling and Twisting on Unwinding of Pressure-Sensitive Tapes
  • ASTM E689-95(1999) Standard Reference Radiographs for Ductile Iron Castings
  • ASTM E355-96 Standard Practice for Gas Chromatography Terms and Relationships
  • ASTM D5160-95(2008) Standard Guide for Gas-Phase Adsorption Testing of Activated Carbon
  • ASTM D5160-95(2014) Standard Guide for Gas-Phase Adsorption Testing of Activated Carbon
  • ASTM D7266-07 Standard Test Method for Analysis of Cyclohexane by Gas Chromatography (External Standard)
  • ASTM B389-81(2020) Standard Test Method for Thermal Deflection Rate of Spiral and Helical Coils of Thermostat Metal
  • ASTM D4452-85(2002)e1 Standard Test Methods for X-Ray Radiography of Soil Samples
  • ASTM D1356-05(2010) Standard Terminology Relating to Sampling and Analysis of Atmospheres
  • ASTM D1356-14 Standard Terminology Relating to Sampling and Analysis of Atmospheres
  • ASTM D6799-23 Standard Terminology Relating to Inflatable Restraints
  • ASTM B389-81(1998) Standard Test Method for Thermal Deflection Rate of Spiral and Helical Coils of Thermostat Metal
  • ASTM C1699-09(2015) Standard Test Method for Moisture Retention Curves of Porous Building Materials Using Pressure Plates
  • ASTM E2003-20 Standard Practice for Fabrication of the Neutron Radiographic Beam Purity Indicators
  • ASTM C1656-13 Standard Guide for Measuring the Reactivity of Hydraulic Refractory Castables using Exothermic Profile
  • ASTM E1955-04(2014) Standard Radiographic Examination for Soundness of Welds in Steel by Comparison to Graded ASTM Reference Radiographs
  • ASTM E1955-04 Standard Radiographic Examination for Soundness of Welds in Steel by Comparison to Graded ASTM E 390 Reference Radiographs
  • ASTM E1955-04(2009) Standard Radiographic Examination for Soundness of Welds in Steel by Comparison to Graded ASTM E 390 Reference Radiographs
  • ASTM E1955-98 Standard Radiographic Examination for Soundness of Welds in Steel by Comparison to Graded ASTM E 390 Reference Radiographs
  • ASTM D2864-06 Standard Terminology Relating to Electrical Insulating Liquids and Gases
  • ASTM D1070-85(1998) Standard Test Methods for Relative Density of Gaseous Fuels
  • ASTM D1356-00a Standard Terminology Relating to Sampling and Analysis of Atmospheres
  • ASTM D4492-07 Standard Test Method for Analysis of Benzene by Gas Chromatography
  • ASTM E1082-90(2007) Standard Test Method for Measurement of Vehicular Response to Traveled Surface Roughness
  • ASTM E260-96(2006) Standard Practice for Packed Column Gas Chromatography
  • ASTM D4492-03 Standard Test Method for Analysis of Benzene by Gas Chromatography
  • ASTM D1070-03(2017) Standard Test Methods for Relative Density of Gaseous Fuels
  • ASTM E1082-90(2002) Standard Test Method for Measurement of Vehicular Response to Traveled Surface Roughness
  • ASTM C1656-13(2018) Standard Guide for Measuring the Reactivity of Hydraulic Refractory Castables Using Exothermic Profile
  • ASTM E2736-17(2022) Standard Guide for Digital Detector Array Radiography
  • ASTM E1082-90(2012) Standard Test Method for Measurement of Vehicular Response to Traveled Surface Roughness
  • ASTM F2771-10(2016) Standard Test Method for Determining the Luminance Curve of an Electroluminescent Lamp at Ambient Conditions
  • ASTM D1945-96(2001) Standard Test Method for Analysis of Natural Gas by Gas Chromatography
  • ASTM B286-07 Standard Specification for Copper Conductors for Use in Hookup Wire for Electronic Equipment
  • ASTM E748-02 Standard Practices for Thermal Neutron Radiography of Materials
  • ASTM D2580-06(2012) Standard Test Method for Phenols in Water by Gas-Liquid Chromatography
  • ASTM D1356-05 Standard Terminology Relating to Sampling and Analysis of Atmospheres
  • ASTM D1070-03(2010) Standard Test Methods for Relative Density of Gaseous Fuels
  • ASTM D2864-10e1 Standard Terminology Relating to Electrical Insulating Liquids and Gases
  • ASTM D1946-90(2015)e1 Standard Practice for Analysis of Reformed Gas by Gas Chromatography
  • ASTM D4492-98 Standard Test Method for Analysis of Benzene by Gas Chromatography
  • ASTM D1070-03 Standard Test Methods for Relative Density of Gaseous Fuels
  • ASTM E2033/E2033M-24 Standard Practice for Radiographic Examination Using Computed Radiography (Photostimulable Luminescence Method)
  • ASTM E260-96(2011) Standard Practice for Packed Column Gas Chromatography

The American Road & Transportation Builders Association

AASHTO - American Association of State Highway and Transportation Officials

  • T 272-2010 Standard Method of Test for Family of Curves—One Point Method
  • T 272-2004 Standard Method of Test for Family of Curves - One-Point Method
  • T 272-2015 Standard Method of Test for Family of Curves-One Point Method
  • T 272-1986 Standard Method of Test for Family of Curves - One-Point Method (HM-22; PART IIB)
  • PP 62-2009 Standard Practice for Developing Dynamic Modulus Master Curves for Hot Mix Asphalt (HMA)
  • R 62-2013 Standard Practice for Developing Dynamic Modulus Master Curves for Asphalt Mixtures

German Institute for Standardization

  • DIN ISO 226 E:2001-11 Acoustics - Normal equal-loudness-level contours
  • DIN ISO 226:2006 Acoustics - Normal equal-loudness-level contours (ISO 226:2003);English version of DIN ISO 226:2006-04
  • DIN 48051-1:1959-09 Power current overhead lines; bent insulator spindles, standard design

RU-GOST R

International Organization for Standardization (ISO)

  • ISO 226:2023 Acoustics — Normal equal-loudness-level contours
  • ISO 226:1987 Acoustics; Normal equal-loudness level contours
  • ISO 226:2003 Acoustics - Normal equal-loudness-level contours

British Standards Institution (BSI)

  • BS ISO 226:2003 Acoustics - Normal equal-loudness-level contours
  • BS EN IEC 61853-4:2018 Photovoltaic (PV) module performance testing and energy rating - Standard reference climatic profiles
  • BS 5443:1977 Recommendations for a standard layout for methods of chemical analysis by gas chromatography

Association Francaise de Normalisation

SE-SIS

SCC

  • AASHTO R 75-2016(2020) Standard Practice for Developing a Family of Curves
  • AASHTO T 272-2004 Standard Method of Test for Family of Curves---One-Point Method
  • AASHTO R 62-2013(2021) Standard Practice for Developing Dynamic Modulus Master Curves for Asphalt Mixtures
  • AASHTO PP 62-2009 Standard Practice for Developing Dynamic Modulus Master Curves for Hot Mix Asphalt (HMA)
  • NS 9006:1981 Standard layout for a method of chemical analysis by gas chromatography
  • MIL MIL-STD-1894B-1998 RADIOGRAPHIC REFERENCE STANDARDS AND RADIOGRAPHIC PROCEDURES FOR PARTIAL-PENETRATION STEEL WELDS (SUPERSEDING MIL-ST1894A)

PT-IPQ

Korean Agency for Technology and Standards (KATS)

American National Standards Institute (ANSI)

Standard Association of Australia (SAA)

  • AS 1469:1973 Criteria curves for rating noise and establishing acoustic environment
  • AS K41.402.1:1963 Standard Methods of Test for Paints, Varnishes, Lacquers and Related Materials, Method 402.1: Bend test
  • AS K41.402.1:1957 Standard Methods of Test for Paints, Varnishes, Lacquers and Related Materials, Method 402.1: Bend test

Society of Automotive Engineers (SAE)

PK-PSQCA

  • PS 122-1985 PAKISTAN STANDARD METHOD FOR THE DETERMINATION OF CRIMP OF YARN IN FABRIC

Institute of Electrical and Electronics Engineers (IEEE)

GSO

ESDU - Engineering Sciences Data Unit

  • ESDU 77022 B-1986 EQUATIONS FOR CALCULATION OF INTERNATIONAL STANDARD ATMOSPHERE AND ASSOCIATED OFF-STANDARD ATMOSPHERES
  • ESDU 77022 C-2008 Equations for calculation of International Standard Atmosphere and associated off-standard atmospheres

IT-UNI

  • UNI S 195-1943 Insulation material standards. Numerical charts and graphs

(U.S.) Joint Electron Device Engineering Council Soild State Technology Association

  • JEDEC JEP78-1969 Relative Spectral Response Curves for Semiconductor Infrared Detectors

American Welding Society (AWS)

  • WRC 148:1970 Interaction Curves for Sections Under Combined Biaxial Bending and Axial Force

ECIA - Electronic Components Industry Association

  • TEP 150-1964 "Relative Spectral Response Data for Photosensitive Devices (""S"" Curves)"

PL-PKN

YU-JUS

  • JUS U.J1.070-1986 Fire protection. Standard time-temperature curve in fire resistance test furnaces for constructions

National Association of Corrosion Engineers (NACE)

  • NACE RP0197-1997 Standard Format for Computerized Electrochemical Polarization Curve Data Files
  • NACE RP0197-2004 Standard Format for Computerized Electrochemical Polarization Curve Data Files Item No. 21080

RO-ASRO

  • STAS 6901-1978 Psycho-physiological acou stics STANDARD CURVES OF EQUAL LOUDNESS LEVEL AND RELATIONS BETWEEN SOUND PRESSURE LEVELS

CH-SNV

  • VSM 23732-1971 Vortex line. Engage. Criteria for Calculation Curves of Displacement Engagement

TH-TISI

  • TIS 895-1989 Standard for liquefied petroleum gas rubber hose: vapour phase

National Aeronautics and Space Administration (NASA)

  • NASA NACA-TN-951-1945 Tests on thin-walled celluloid cylinders to determine the interaction curves under combined bending, torsion, and compression or tension loads

HU-MSZT

  • MSZ 10800-1966 Measurement of standard air ring inspection. is equal to standard atmospheric pressure and relative humidity

Defense Logistics Agency

U.S. Air-Conditioning, Heating, and Refrigeration Institute (US-AHRI)

American Society of Mechanical Engineers (ASME)

  • ASME STP-PT-094-2022 Determination of Stress Strain Curves of 304, 304L, 316, 316L for Strain-Based Design Criteria

VE-FONDONORMA

  • COVENIN 636-1974 Provisions on twist coefficient of spinning yarn in Venezuelan national standards

GB-REG