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Database: 365,228(8 Aug 2026)

Liquidity Method Instruments

Liquidity Method Instruments, Total:200 items.

The international standard classification for "Liquidity Method Instruments" includes: Non-destructive testing , Metrology and measurement in general , Industrial process measurement and control , Exploratory and extraction equipment , Other equipment for petroleum and natural gas industries , Hydraulic construction , Analytical chemistry , Nuclear energy engineering , Environmental testing , Geology. Meteorology. Hydrology , Adhesives , Glass in general , Amplifiers , Equipment for the metallurgical industry , Raw materials , Wood-protecting chemicals , Cereals, pulses and derived products .

The Chinese standard classification for "Liquidity Method Instruments" includes: X ray, magnetic powder, fluorescent light and other defectoscope , Industrial automation and control device in general , Ultrasonic wave and sound radiation defectoscope , Acoustic instrument and seismograph , Petroleum drilling & production equipment and instrument , Petroleum exploration, development, gathering and transportation engineering in general , Material composition analysis instrument and environment detection instrument in general , Micro and copier machinery , Nuclear instrument and detector in general , Hydrology and water conservancy instrument , Basic standards and general methods for adhesives , Laboratory glass, ceramic and plastic vessel , General nuclear instrument , Casting , Building sanitary ceramics , Heat-exchange equipment , Coal tar processed products , Cereal crop and forage crop in general .


Professional Standard - Machinery

  • JB/T 5525-2011 Non-destructive testing instruments —characteristics measured method for one-channel eddy current testing instrument
  • JB/T 9233.16-1999 General methods of testing the performance of industrial process measurement and control instruments AC electrical power consumption
  • JB/T 5747-1991 Model Designation and Drawing-up Methods of Vibration Measuring Instrument
  • JB/T 9233.14-1999 General methods of testing the performance of industrial process measurement and control instruments Start current
  • JB/T 6789-1993 Instrumentation industrial processing method code
  • JB/T 11780-2014 Non-destructive Testing Instrument - Characterization and Verification of Array Eddy Current Testing Instrument
  • JB/T 7480-1994 Current instrument test method
  • JB/T 9233.15-1999 General methods of testing the performance of industrial process measurement and control instruments DC electrical power consumption
  • JB/T 6183-1992 Code for Reliability Requirement and Compilation of Examination Method for Instrumentation
  • JB/T 8283-1999 Methods for testing the operating characteristics of acoustic emission instrumentation
  • JB/T 6183-2014 Rules for the preparation of reliability requirements and assessment methods of instrumentation
  • JB/T 11606-2013 Non-destructive testing instruments — Metal magnetic memory instrument - Performance testing method

Professional Standard - Water Conservancy

  • SL 135-1995 Calibration method for dynamic elastic concrete modulus tester
  • SL 123-1995 Method for calibration of cement mortar flow tester
  • SL 135-2017 SL/T 135-2017 (Calibration method for apparatus testing dynamic modulus of elasticity of concrete)

Professional Standard - Petroleum

水利部

  • SL/T 135-2017 Calibration method of concrete dynamic elastic modulus measuring instrument
  • SL 123-2012 Calibration methods for fluidity tester of cement mortar

Group Standards of the People's Republic of China

  • T/GDCKCJH 065-2022 Performance requirements and test methods for DC parameter testers of zinc oxide lightning arrester
  • T/CMA JD009-2020 Dynamic test items and methods for portable braking performance testers
  • T/CWAN 0108-2024 Test procedures of fluidity for brazing filler metals
  • T/CPQS E00063-2023 Performance requirements and test methods for household beauty care appliance Part 2: Micro current beauty care appliance

未注明发布机构

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

  • GB/T 44374-2024 Determination of performance of pressurized fluid extractor
  • GB/T 2419-2005(英文版) Test method for fluidity of cement mortar
  • GB 7369-1987 Carrier--Determination of flowability
  • GB/T 11606.8-1989 The method of environmental test for analytical instruments--Vibration test
  • GB/T 10261-1988 Test procedures for stabilized d.c high/low voltage power for nuclear instruments
  • GB/T 13975-1992 current amplifiers - Characteristics and test methods
  • GB/T 11826.2-2012 Current meter and flow meter—Part 2:Ultrasonic current meter
  • GB/T 31113-2014 Measurement of the resistance to flow for adhesive
  • GB/T 42413-2023 Glassware—Test method for freezing resistance of glass containers
  • GB/T 23460.1-2009 Test methods of ceramic glazes—Part 1:Determination of fluidity behaviour—Fusion flow test
  • GB/T 14235.7-1993 method for fluidity of pattern materials in investment casting
  • GB/T 14480.1-2015 Non-destructive testing instruments―Equipment for eddy current examination―Part 1:Instrument characteristics and verification

National Metrological Technical Specifications of the People's Republic of China

  • JJF 1283-2011 Calibration Specification for Residual Current Operated Protective Device Operated Characteristic Tester
  • JJF 1568-2016 Calibration Specification for Flow Analyzers with Spectrophotography

Professional Standard - Aviation

  • HBm 69-1988 Test Method for Performance of Condenser and Evaporator for Forced Flowing Air

Professional Standard - Aerospace

  • QJ 3024-1998 Inspection method for active excess residue of rocket star instrument

Professional Standard - Ferrous Metallurgy

  • YB/T 5173-1993 Test method for coal-tar-creosote - Determination of mobility

Professional Standard - Petrochemical Industry

  • NB/SH/T 0850-2010 Spreading Testing of Lubricating Grease for Precision Engineering and Optical Instruments

工业和信息化部

  • YB/T 5173-2016 Test method for coal-tar-creosote—Determination of mobility

Military Standard of the People's Republic of China-Commission of Science,Technology and Industry for National Defence

  • GJB 5372-2005 Metal material dynamic impact test-instrumental method

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

  • GJB 595.6-1988 Environmental test methods for artillery optical instruments Vibration test
  • GJB 570.6-1988 Meteorological instrument finalization test method reliability test
  • GJB 6296-2008 Calibration methods for tropospherie wind profiler
  • GJB/J 3825-1999 Turbine flow meter dynamic characteristics calibration method

Professional Standard - Education

机械工业部

Professional Standard - Ocean

  • HY 016.11-1992 The basic method of environmental test for oceanographic instruments—Vibration test

National Metrological Verification Regulations of the People's Republic of China

Taiwan Provincial Standard of the People's Republic of China

  • CNS 8516-1982 Method of Test for Flow Rates of Thermoplastics by Extrusion Plastometer
  • CNS 12395-1988 Method of Test for Resistance to Plastic Flow of Bituminous Mixtures Using Marshall Apparatus

Professional Standard - Grain

  • LS/T 3706-2012 Test Instrument of Grain and Oils - Technical Requirements and Test Method for Automatic Titration Analyzer

国家市场监督管理总局、中国国家标准化管理委员会

  • GB/T 39849-2021 Non-destructive testing instruments—Ultrasonic time-of-flight diffraction instrument—Methods of performance tests

Korean Agency for Technology and Standards (KATS)

  • KS M 3004-2013 Testing method for flow properties of thermoplastics with a capillary rheometer
  • KS F 2428-1990 Testing Method for Determination of Vibrating Factor by Consistency of Concrete
  • KS M 3004-2008 Testing method for flow properties of thermoplastics with a capillary rheometer
  • KS W 6061-1989 Vibration Test methods for aeronautical instrument
  • KS F 2410-1977 TESTING METHOD FOR FLOW OF CONCRETE BY THE flow board
  • KS F 2393-2014 Standard test method for rheological properties of asphalt binder using dynamic shear rheometer
  • KS F 2337-2017 Testing method for marshall stability and flow of asphalt mixtures using marshall apparatus
  • KS F 2393-2019 Standard test method for rheological properties of asphalt binder using dynamic shear rheometer
  • KS W 6062-1990 WEATHERABILITY Test methods for aeronautical instrument
  • KS F 2337-2017(2022) Testing method for marshall stability and flow of asphalt mixtures using marshall apparatus
  • KS B 6931-2005 Pneumatic fluid power-Determination of flow-ratecharacteristics of pneumatic control valves
  • KS L 1626-2017(2022) Testing method for flowability of fine ceramic powders
  • KS B 0537-2005 Methods for assessing the electrical characteristics ofultrasonic testing instrument using pulse echo technique
  • KS B 0534-2000 Method for assessing the overall performance characteristicsof ultrasonic pulse echo testing instrument
  • KS L 1626-2017 Testing method for flowability of fine ceramic powders
  • KS L 1626-2022 Testing method for flowability of fine ceramic powders
  • KS M ISO 11443:2007 Plastics-Determination of the fluidity of plastics using capillary and slit-die rheometers
  • KS M ISO 11443:2017 Plastics-Determination of the fluidity of plastics using capillary and slit-die rheometers

Society of Automotive Engineers (SAE)

SAE - SAE International

AASHTO - American Association of State Highway and Transportation Officials

  • T 245-2013 Standard Method of Test for Resistance to Plastic Flow of Asphalt Mixtures Using Marshall Apparatus
  • T 245-1997 Standard Method of Test for Resistance to Plastic Flow of Bituminous Mixtures Using Marshall Apparatus
  • T 245-2014 Standard Method of Test for Resistance to Plastic Flow of Asphalt Mixtures Using Marshall Apparatus
  • T 315-2008 Standard Method of Test for Determining the Rheological Properties of Asphalt Binder Using a Dynamic Shear Rheometer (DSR)
  • T 315-2009 Standard Method of Test for Determining the Rheological Properties of Asphalt Binder Using a Dynamic Shear Rheometer (DSR)
  • TP5-1998 Standard Test Method for Determining the Rheological Properties of Asphalt Binder Using a Dynamic Shear Rheometer (DSR)
  • T 315-2006 Standard Method of Test for Determining the Rheological Properties of Asphalt Binder Using a Dynamic Shear Rheometer (DSR)
  • T 315-2010 Standard Method of Test for Determining the Rheological Properties of Asphalt Binder Using a Dynamic Shear Rheometer (DSR)
  • T 315-2005 Standard Method of Test for Determining the Rheological Properties of Asphalt Binder Using a Dynamic Shear Rheometer (DSR)
  • T 315-2012 Standard Method of Test for Determining the Rheological Properties of Asphalt Binder Using a Dynamic Shear Rheometer (DSR)
  • TP5-1997 Standard Test Method for Determining the Rheological Properties of Asphalt Binder Using a Dynamic Shear Rheometer (DSR)
  • T 315-2004 Standard Method of Test for Determining the Rheological Properties of Asphalt Binder Using a Dynamic Shear Rheometer (DSR)
  • T245-1997 Standard Method of Test for Resistance to Plastic Flow of Bituminous Mixtures Using Marshall Apparatus (Nineteenth Edition; ASTM D1559-76)
  • TP5-1993 Standard Test Method for Determining the Rheological Properties of Asphalt Binder Using a Dynamic Shear Rheometer (DSR) (Edition 1B)

The American Road & Transportation Builders Association

  • AASHTO T 245-2015 Standard Method of Test for Resistance to Plastic Flow of Asphalt Mixtures Using Marshall Apparatus
  • AASHTO T 245-2014 Standard Method of Test for Resistance to Plastic Flow of Asphalt Mixtures Using Marshall Apparatus
  • AASHTO T 245-2013 Standard Method of Test for Resistance to Plastic Flow of Asphalt Mixtures Using Marshall Apparatus
  • AASHTO T 315-2008 Standard Method of Test for Determining the Rheological Properties of Asphalt Binder Using a Dynamic Shear Rheometer (DSR)
  • AASHTO T 245-1997 Standard Method of Test for Resistance to Plastic Flow of Bituminous Mixtures Using Marshall Apparatus
  • AASHTO T 315-2022 Standard Method of Test for Determining the Rheological Properties of Asphalt Binder Using a Dynamic Shear Rheometer (DSR)
  • AASHTO T 315-2010 Standard Method of Test for Determining the Rheological Properties of Asphalt Binder Using a Dynamic Shear Rheometer (DSR)

SCC

  • BS 2782-7 METHOD 722B:1996 Methods of testing plastics. Rheological properties-Determination of the fluidity of plastics using capillary and slit-die rheometers
  • BS 6277:1982 Method for determination of pressure drop/flow characteristics of hydraulic fluid power filters
  • AASHTO T 245-1997(2008) Standard Method of Test for Resistance to Plastic Flow of Bituminous Mixtures Using Marshall Apparatus
  • AASHTO T 315-2012(2016) Standard Method of Test for Determining the Rheological Properties of Asphalt Binder Using a Dynamic Shear Rheometer (DSR)
  • AASHTO T 315-2020 Standard Method of Test for Determining the Rheological Properties of Asphalt Binder Using a Dynamic Shear Rheometer (DSR)
  • AASHTO T 315-2006 Standard Method of Test for Determining the Rheological Properties of Asphalt Binder Using a Dynamic Shear Rheometer (DSR)
  • AASHTO T 315-2009 Standard Method of Test for Determining the Rheological Properties of Asphalt Binder Using a Dynamic Shear Rheometer (DSR)
  • AASHTO T 315-2019 Standard Method of Test for Determining the Rheological Properties of Asphalt Binder Using a Dynamic Shear Rheometer (DSR)
  • AASHTO T 245-2022 Standard Method of Test for Resistance to Plastic Flow of Asphalt Mixtures Using Marshall Apparatus
  • AASHTO T 245-2015(2019) Standard Method of Test for Resistance to Plastic Flow of Bituminous Mixtures Using Marshall Apparatus
  • BS 5084-1:1975 Specification for magnetic tape for instrumentation applications-Physical properties and test methods
  • MIL MIL-STD-1361A-1973 FLUIDICS TEST METHODS AND INSTRUMENTATION (NO S/S DOCUMENT) (SUPERSEDING MIL-STD-1361)

Association Francaise de Normalisation

  • NF C42-502:1974 Measuring instrumetns. Current transformers. Characteristics.
  • FD E48-154:2002 Hydraulic fluid power - Test method for determinating the flowrate performances of hydro-pneumatic accumulators
  • NF E48-664*NF ISO 18237:2018 Hydraulic fluid power - Method for evaluating water separation performance of dehydrators
  • NF R96-201:1931 Direction of rotation of machines and equipment.

American Society for Testing and Materials (ASTM)

  • ASTM D5581-06 Standard Test Method for Resistance to Plastic Flow of Bituminous Mixtures Using Marshall Apparatus (6 inch-Diameter Specimen)
  • ASTM D7175-08 Standard Test Method for Determining the Rheological Properties of Asphalt Binder Using a Dynamic Shear Rheometer
  • ASTM D7175-23 Standard Test Method for Determining the Rheological Properties of Asphalt Binder Using a Dynamic Shear Rheometer
  • ASTM D7175-15 Standard Test Method for Determining the Rheological Properties of Asphalt Binder Using a Dynamic Shear Rheometer
  • ASTM C518-17 Standard Test Method for Steady-State Thermal Transmission Properties by Means of the Heat Flow Meter Apparatus
  • ASTM D7175-05 Standard Test Method for Determining the Rheological Properties of Asphalt Binder Using a Dynamic Shear Rheometer
  • ASTM D7175-07 Standard Test Method for Determining the Rheological Properties of Asphalt Binder Using a Dynamic Shear Rheometer
  • ASTM D7175-05e1 Standard Test Method for Determining the Rheological Properties of Asphalt Binder Using a Dynamic Shear Rheometer
  • ASTM D3795-00a Standard Test Method for Thermal Flow, Cure, and Behavior Properties of Pourable Thermosetting Materials by Torque Rheometer
  • ASTM D6204-04 Standard Test Method for Rubber8212;Measurement of Unvulcanized Rheological Properties Using Rotorless Shear Rheometers
  • ASTM D6204-01 Standard Test Method for Rubber8212;Measurement of Unvulcanized Rheological Properties Using Rotorless Shear Rheometers
  • ASTM D6204-05 Standard Test Method for Rubber8212;Measurement of Unvulcanized Rheological Properties Using Rotorless Shear Rheometers
  • ASTM C518-15 Standard Test Method for Steady-State Thermal Transmission Properties by Means of the Heat Flow Meter Apparatus
  • ASTM D6204-99 Standard Test Method for Rubber8212;Measurement of Unvulcanized Rheological Properties Using Rotorless Shear Rheometers
  • ASTM C639-01 Standard Test Method for Rheological (Flow) Properties of Elastomeric Sealants
  • ASTM C374-70(1998) Standard Test Methods for Fusion Flow of Porcelain Enamel Frits (Flow-Button Methods)
  • ASTM C639-95 Standard Test Method for Rheological (Flow) Properties of Elastomeric Sealants
  • ASTM C639-15(2020) Standard Test Method for Rheological (Flow) Properties of Elastomeric Sealants
  • ASTM C374-70(2009) Standard Test Methods for Fusion Flow of Porcelain Enamel Frits (Flow-Button Methods)
  • ASTM C374-14(2015)e1 Standard Test Methods for Fusion Flow of Porcelain Enamel Frits (Flow-Button Methods)
  • ASTM C374-14 Standard Test Methods for Fusion Flow of Porcelain Enamel Frits 40;Flow-Button Methods41;
  • ASTM C639-15 Standard Test Method for Rheological (Flow) Properties of Elastomeric Sealants
  • ASTM C639-01(2007) Standard Test Method for Rheological (Flow) Properties of Elastomeric Sealants
  • ASTM D3835-79(1983) Standard Test Method for Rheological Properties of Thermoplastics with a Capillary Rheometer
  • ASTM C639-01(2011) Standard Test Method for Rheological (Flow) Properties of Elastomeric Sealants
  • ASTM D3795-20 Standard Test Method for Thermal Flow, Cure, and Behavior Properties of Pourable Thermosetting Materials by Torque Rheometer
  • ASTM D5581-96(2001) Standard Test Method for Resistance to Plastic Flow of Bituminous Mixtures Using Marshall Apparatus (6 inch-Diameter Specimen)
  • ASTM D5581-07ae1 Standard Test Method for Resistance to Plastic Flow of Bituminous Mixtures Using Marshall Apparatus (6 inch-Diameter Specimen)
  • ASTM D5581-07a(2013) Standard test method for resistance of asphalt mixtures to plastic flow using a Marshall instrument (6-inch diameter specimen)
  • ASTM D7605-11(2016) Standard Test Method for Thermoplastic Elastomers—Measurement of Polymer Melt Rheological Properties and Congealed Dynamic Properties Using Rotorless Shear Rheometers
  • ASTM E2510-20 Standard Test Method for Torque Calibration or Conformance of Rheometers
  • ASTM D7605-11(2022) Standard Test Method for Thermoplastic Elastomers—Measurement of Polymer Melt Rheological Properties and Congealed Dynamic Properties Using Rotorless Shear Rheometers
  • ASTM D2183-69 Method of Test for Flow Properties of Adhesives
  • ASTM C1667-09 Standard Test Method for Using Heat Flow Meter Apparatus to Measure the Center-of-Panel Thermal Resistivity of Vacuum Panels
  • ASTM C1667-07 Standard Test Method for Using Heat Flow Meter Apparatus to Measure the Center-of-Panel Thermal Resistivity of Vacuum Panels
  • ASTM D5581-07 Standard Test Method for Resistance to Plastic Flow of Bituminous Mixtures Using Marshall Apparatus (6 inch-Diameter Specimen)
  • ASTM D7681-11(2021) Standard Test Method for Measuring Gradation of Glass Spheres Using a Flowing Stream Digital Image Analyzer
  • ASTM E2510-07 Standard Test Method for Torque Calibration or Conformance of Rheometers
  • ASTM E2510-07(2013) Standard Test Method for Torque Calibration or Conformance of Rheometers
  • ASTM D5581-07A(2021)e1 Standard Test Method for Resistance to Plastic Flow of Bituminous Mixtures Using Marshall Apparatus (6 in. Diameter Specimen)
  • ASTM D5099-93(2003) Standard Test Methods for Rubber-Measurement of Processing Properties Using Capillary Rheometry

British Standards Institution (BSI)

  • BS IEC 61501:2001 Nuclear reactor instrumentation - Wide range neutron fluence rate meter - Mean square voltage method
  • BS ISO 9022-7:1995 Optics and optical instruments - Environmental test methods - Drip , rain
  • BS 2782-7 Method 720B:1979 Methods of testing plastics - Rheological properties - Cup flow of phenolic and alkyd moulding materials
  • BS ISO 13100:2024 Methods for zeta potential determination. Streaming potential and streaming current methods for porous materials
  • BS ISO TR 3313:1998 Measurement of fluid flow in closed conduits - Guidelines on the effects of flow pulsations on flow-measurement instruments
  • BS ISO 24578:2021 Hydrometry. Acoustic Doppler profiler. Method and application for measurement of flow in open channels from a moving boat

HU-MSZT

Japanese Industrial Standards Committee (JISC)

  • JIS Z 2314:1991 Test methods for performance characteristics of eddy current testing instruments
  • JIS Z 2502:1979 Method for determination of flow rate of metal powders
  • JIS Z 2502:2012 Metallic powders -- Determination of flow rate by means of a calibrated funnel (Hall flowmeter)
  • JIS Z 2502:2000 Metallic powders -- Determination of flowability by means of a calibrated funnel (Hall flowmeter)
  • JIS K 7199:1991 Testing method for flow properties of thermoplastics with a capillary rheometer
  • JIS B 7535:1982 Flow type air gauges
  • JIS K 7199:1999 Plastics -- Determination of the fluidity of plastics using capillary and slit-die rheometers

RU-GOST R

  • GOST R 8.669-2009 State system for ensuring the uniformity of measurements. Vibrometers with piezoelectric, induction and eddy current vibrations transducers. Methods of verification
  • GOST R IEC 773-1996 Brushes for electrical machines. Test methods and apparatus for the measurement of the operational characteristics
  • GOST R 51371-1999 Mechanical environment stability test methods for machines, instruments and other industrial products. Test for influence of shocks
  • GOST 28953-1991 Photosensitive charge transfer device. Measuring methods for parameters
  • GOST R ISO 8325-2010 Dental rotary instruments. Test methods

AENOR

  • UNE 82501:2004 Measuring instruments. Instruments intended to measure the emissions of exhaust pollutant gaz of motor vehicles. Characteristics and test methods.

American National Standards Institute (ANSI)

  • ANSI/ASTM D3795:2000 Test Method for Thermal Flow and Cure Properties of Thermosetting Plastics by Torque Rheometer (15.04)
  • ANSI/AWS B2.1-1/8-227:2002 Standard Welding Procedure Specification (WPS) for Gas Tungsten Arc Welding of Carbon Steel to Austenitic Stainless Steel (M-1/P-1/S-1 Groups 1 and 2 Welded to M-8/P-8/S-8, Group 1) 1/16 through 1-1/2 inch thick, ER309, As-Welded Condition, Primarily Pip

SE-SIS

  • SIS SS IEC 527:1981 Nuclear instrumentation - Direct current amplifiers - Characteristics and test methods

CZ-CSN

VN-TCVN

  • TCVN 7576-1-2006 Methods of test for full-flow lubricating oil filters for internal combustion engines.Part 1: Differential pressure/flow characteristics

IN-BIS

  • IS 13617-1992 Evaluation of pressure drop versus flow characteristics of pneumatic filters. Method of test
  • IS 12554 Pt.1-1988 Specification for non-destructive coating thickness testing instruments Part 1 Eddy current instruments

International Electrotechnical Commission (IEC)

  • IEC 60527:1975 Direct current amplifiers; characteristics and test methods

GSO

  • SD 112-1983 Verification method of DC instrument test equipment
  • OS GSO IEC 60527:2009 Direct current amplifiers - characteristics and test methods
  • GSO IEC 60527:2009 Direct current amplifiers - characteristics and test methods
  • SD 111-1983 Verification method of AC instrument test equipment
  • OS GSO IEC 61435:2015 Nuclear instrumentation - High-purity germanium crystals for radiation detectors - Measurement methods of basic characteristics

PL-PKN

  • PN BN 7469-07-1966 Printing inks Methods of testing Determination of flow property
  • PN E05027-1989 Standard directions of movement for actuators which control the operation of electrical apparatus

RO-ASRO

  • STAS 11071/21-1990 Hierarchy of measuring instruments. Block diagram of hierarchy of measuring instrument for thermal neutrons flux density
  • STAS 5991-1991 Thermobardening plastics FLOW CAPACITY DETERMINATION OF MOULDING MATERIALS BY RASCHIG METHOD
  • STAS 2810-1989 INSTRUMENTATION MEANS Terminology

ASHRAE - American Society of Heating@ Refrigerating and Air-Conditioning Engineers@ Inc.

  • ASHRAE 41.9-2000 Calorimeter Test Methods for Mass Flow Measurements of Volatile Refrigerants

International Organization for Standardization (ISO)

  • ISO 11443:2021 Plastics - Determination of the fluidity of plastics using capillary and slit-die rheometers