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astm-d790-flexural-testing-of-plastics
Mechanical Testing ASTM D1761 Mechanical Fastener Testing for WoodASTM D2240 Shore Hardness TestingASTM D2240 Shore Hardness Testing of PolymersASTM D2243 Low Temperature Testing of PlasticsASTM D256 Izod Impact Test for PlasticsASTM D256 Izod Impact Testing of PlasticsASTM D2737 Tensile Testing of Polyethylene PipesASTM D3039 Tensile Testing of CompositesASTM D3039 Tensile Testing of Polymer Matrix CompositesASTM D3410 Compression After Impact TestingASTM D3410 Compression After Impact TestingASTM D3410 Compression After Impact Testing of Composite SpecimensASTM D5334 Thermal Conductivity TestingASTM D6110 Charpy Impact of PlasticsASTM D638 Tensile Properties of PlasticsASTM D638 Tensile Testing of Plastic SpecimensASTM D638 Tensile Testing of PlasticsASTM D6641 Compression Testing of CompositesASTM D695 Compressive Properties of Rigid PlasticsASTM D7136 Composite Impact TestingASTM D7136 Impact Damage Testing of Composite MaterialsASTM D790 Flexural Properties of CompositesASTM D790 Flexural Testing of PlasticsASTM D792 Density and Specific Gravity of PlasticsASTM D882 Tensile Properties of Thin Plastic FilmsASTM E1012 Fracture Toughness Testing of MetalsASTM E1012 Measurement of Fracture ToughnessASTM E1058 Standard Test Method for Dynamic Young's ModulusASTM E112 Determining Average Grain Size in MetalsASTM E122 Standard Test Methods for Crack GrowthASTM E1252 High-Temperature Tensile TestingASTM E18 Rockwell Hardness Testing of MetalsASTM E1876 Resonant Frequency TestingASTM E1876 Resonant Frequency Testing of MaterialsASTM E190 Standard Hardness Testing - Knoop MicrohardnessASTM E23 Charpy Impact Testing of MetalsASTM E28 Hardness Testing of Metallic MaterialsASTM E286 Standard Test Method for Fatigue Crack Growth RatesASTM E303 Surface Roughness Measurement by the Sand Patch MethodASTM E384 Microhardness TestingASTM E384 Microhardness Testing of MaterialsASTM E399 Fracture Toughness Testing of MetalsASTM E399 Fracture Toughness Testing of MetalsASTM E399 Plane-Strain Fracture Toughness TestingASTM E407 Etching Metallic Surfaces for MicrostructureASTM E466 Fatigue Testing of MetalsASTM E466 Fatigue Testing under Cyclic LoadingASTM E606 Cyclic Fatigue Testing of MetalsASTM E8/E8M Tensile Testing of Metallic MaterialsASTM E837 Residual Stress Measurement by Hole DrillingASTM E9 Compression Testing of Metallic MaterialsASTM E9 Compression Testing of MetalsASTM F606 Mechanical Testing of Surgical ImplantsASTM F606 Mechanical Testing of Surgical ImplantsISO 1099 Fatigue Testing of MetalsISO 1099 Fatigue Testing under Cyclic LoadingISO 1099 Metallic Materials - Fatigue TestingISO 11565 Plastics - Low Temperature Impact TestingISO 1167 Thermoplastics Pipes - Tensile StrengthISO 1183 Plastics - Density DeterminationISO 12108 Fatigue Crack Growth TestingISO 12108 Fatigue Crack Growth TestingISO 12135 Fracture Mechanics Testing - K_ICISO 12135 Fracture Toughness TestingISO 12135 Metallic Materials - Fracture Toughness TestingISO 12737 Fracture Toughness of SteelISO 12737 Steel and Iron - Fracture ToughnessISO 14125 Composite Materials - Flexural TestingISO 14125 Flexural Testing of CompositesISO 14126 Composite Materials - Compression After ImpactISO 148-1 Metallic Materials - Charpy Impact TestISO 15496 Hole Drilling Method for Residual StressISO 178 Plastics - Flexural PropertiesISO 179-1 Plastics - Izod Impact StrengthISO 179-2 Plastics - Instrumented Impact TestingISO 180 Plastics - Izod Impact TestISO 18352 Composite Impact TestingISO 18352 Composite Materials - Impact TestingISO 22007-2 Thermal Conductivity of PlasticsISO 4287 Surface Texture Profile MethodISO 4545 Knoop Hardness Test MethodISO 527 Tensile Testing of PlasticsISO 527-1 Plastics - Tensile Properties DeterminationISO 527-2 Plastics - General Tensile TestingISO 527-3 Plastics - Tensile Testing of FilmsISO 527-4 Composites - Tensile TestingISO 527-4 Tensile Testing of CompositesISO 604 Compression Test for PlasticsISO 604 Compression Testing of PlasticsISO 604 Plastics - Compression PropertiesISO 643 Metallic Materials - Grain Size DeterminationISO 6506-1 Brinell Hardness Test MethodISO 6507 Vickers Hardness TestISO 6507-1 Vickers Hardness Test MethodISO 6508 Rockwell Hardness Test MethodISO 6603 Falling Weight Impact TestingISO 6603-2 Plastics - Falling Weight Impact TestingISO 6603-2 Plastics - Impact Testing by Falling WeightISO 6891 Timber - Mechanical Fasteners TestingISO 6892-1 Tensile Testing at Room TemperatureISO 6892-2 Tensile Testing at Elevated TemperaturesISO 7206-4 Fatigue Testing of ImplantsISO 7206-4 Implants for Surgery - Fatigue TestingISO 7626 Vibration TestingISO 7626-5 Vibration TestingISO 7626-5 Vibration Testing of StructuresISO 868 Plastics - Hardness by Shore MethodISO 868 Plastics - Shore HardnessISO 945 Microstructure Analysis of Metals

ASTM D790 Flexural Testing of Plastics: Eurolabs Laboratory Testing Service

Standard-Related Information

ASTM D790 is a widely recognized standard for determining the flexural properties of plastics. The standard specifies the requirements for testing the flexural strength, flexural modulus, and flexural strain at break of plastic materials. This testing method is essential for evaluating the mechanical properties of plastics, which are critical in ensuring product safety and performance.

Legal and Regulatory Framework

The use of ASTM D790 is governed by various international and national standards, including ISO 178, EN 527-2, and TSE 6015. Compliance with these standards is mandatory for industries that require the testing of plastic materials, such as aerospace, automotive, medical devices, and packaging.

Standard Development Organizations

The development and maintenance of ASTM D790 are overseen by the American Society for Testing and Materials (ASTM). Other standard development organizations, such as ISO, EN, and TSE, also contribute to the evolution of this standard. These organizations ensure that standards remain relevant and effective in meeting changing industry needs.

Standard Evolution

Standards like ASTM D790 evolve over time to reflect advances in technology, new testing methods, and improved analytical techniques. Regular updates and revisions ensure that standards remain aligned with current industry practices and requirements.

Standard Numbers and Scope

Some key standard numbers related to ASTM D790 include:

  • ASTM D790: Standard Test Methods for Flexural Properties of Unreinforced and Reinforced Plastics and Electrical Insulating Materials
  • ISO 178: Plastics Determination of flexural properties
  • EN 527-2: Plastics Determination of tensile properties (Part 2)
  • TSE 6015: Plastics Determination of tensile properties
  • Standard Compliance Requirements

    Compliance with ASTM D790 is mandatory for various industries, including:

  • Aerospace: For ensuring the safety and performance of aircraft and spacecraft components
  • Automotive: To evaluate the mechanical properties of automotive parts and ensure compliance with regulatory requirements
  • Medical Devices: To guarantee the safety and efficacy of medical devices
  • Packaging: To assess the mechanical properties of packaging materials and ensure product protection
  • Standard Requirements and Needs

    Why ASTM D790 is Needed and Required

    ASTM D790 testing is essential for evaluating the flexural properties of plastics, which are critical in ensuring product safety and performance. Failure to perform this test can result in:

  • Reduced product lifespan
  • Increased maintenance costs
  • Safety hazards due to material failure
  • Compliance issues with regulatory requirements
  • Business and Technical Reasons

    Conducting ASTM D790 testing is necessary for various industries due to the following reasons:

  • Ensuring product safety and performance
  • Meeting regulatory compliance requirements
  • Evaluating material properties for design optimization
  • Reducing material waste and energy consumption
  • Enhancing product durability and lifespan
  • Industries and Sectors

    ASTM D790 testing is required in various industries, including:

  • Aerospace: For ensuring the safety and performance of aircraft and spacecraft components
  • Automotive: To evaluate the mechanical properties of automotive parts and ensure compliance with regulatory requirements
  • Medical Devices: To guarantee the safety and efficacy of medical devices
  • Packaging: To assess the mechanical properties of packaging materials and ensure product protection
  • Risk Factors and Safety Implications

    Failure to perform ASTM D790 testing can result in:

  • Reduced product lifespan
  • Increased maintenance costs
  • Safety hazards due to material failure
  • Compliance issues with regulatory requirements
  • Quality Assurance and Quality Control Aspects

    ASTM D790 testing involves rigorous quality control measures, including:

  • Sample preparation procedures
  • Testing equipment calibration and validation
  • Data collection and analysis methods
  • Statistical considerations for sample size and testing duration
  • Test Conditions and Methodology

    Step-by-Step Explanation of the Test

    The ASTM D790 test is conducted as follows:

    1. Sample Preparation: The sample is prepared according to standard procedures, including cutting, cleaning, and conditioning.

    2. Testing Equipment: The testing equipment used includes a universal testing machine (UTM) with a 5 kN load cell and a flexural testing fixture.

    3. Testing Environment: The testing environment requires a controlled temperature (23C 2C), humidity (50 10), and atmospheric pressure.

    4. Sample Placement: The sample is placed in the testing fixture, ensuring proper alignment and positioning.

    5. Loading Protocol: The loading protocol involves applying a controlled load at a rate of 1 mm/min until failure occurs.

    6. Measurement and Analysis: The flexural strength, flexural modulus, and flexural strain at break are measured and recorded.

    Testing Equipment and Instruments

    The testing equipment used for ASTM D790 includes:

  • Universal Testing Machine (UTM)
  • Flexural testing fixture
  • Load cell (5 kN)
  • Temperature control system
  • Humidity control system
  • Atmospheric pressure control system
  • Sample Preparation Procedures

    The sample preparation procedures involve:

  • Cutting the sample to the required dimensions (typically 55 mm 13 mm 3.2 mm)
  • Cleaning the sample to remove any impurities or contaminants
  • Conditioning the sample to achieve a stable temperature and humidity level
  • Data Collection and Analysis Methods

    The data collection and analysis methods used for ASTM D790 include:

  • Measuring the flexural strength, flexural modulus, and flexural strain at break using a UTM with a 5 kN load cell
  • Recording the data in accordance with standard procedures
  • Analyzing the data using statistical methods to determine sample size and testing duration
  • Statistical Considerations

    The statistical considerations for ASTM D790 include:

  • Sample size: A minimum of five samples is required for each test
  • Testing duration: The testing duration should be at least 10 minutes to ensure accurate results
  • Test Results and Interpretation

    The test results are interpreted as follows:

  • Flexural strength (fs): The maximum load applied during the test, measured in MPa.
  • Flexural modulus (E): The ratio of stress to strain within the proportional limit, measured in GPa.
  • Flexural strain at break (εb): The percentage strain at failure.
  • Conclusion

    ASTM D790 is a widely recognized standard for determining the flexural properties of plastics. Compliance with this standard is mandatory for various industries, including aerospace, automotive, medical devices, and packaging. Eurolabs laboratory testing service provides accurate and reliable results for ASTM D790 testing, ensuring product safety and performance.

    Recommendations

    Based on the analysis above, we recommend:

  • Conducting ASTM D790 testing as part of material selection and design optimization
  • Ensuring compliance with regulatory requirements for industries that require testing of plastic materials
  • Using Eurolabs laboratory testing service to obtain accurate and reliable results
  • Need help or have a question?
    Contact us for prompt assistance and solutions.

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