Din 53357 Pdf Info

Title: An Overview of DIN 53357: A Standard for Plastics - Determination of Impact Resistance of Rigid Plastics

Abstract: DIN 53357 is a German standard that specifies a method for determining the impact resistance of rigid plastics. This standard is essential for evaluating the durability and performance of rigid plastic materials used in various applications. This paper provides an overview of DIN 53357, including its scope, definitions, test equipment, test procedure, and evaluation of results. Additionally, it highlights the significance of impact resistance testing for rigid plastics and its relevance to various industries.

Introduction: Rigid plastics are widely used in various industries, including construction, automotive, and packaging, due to their excellent mechanical properties, corrosion resistance, and durability. However, these materials can be susceptible to impact damage, which can lead to failure in service. Therefore, it is crucial to evaluate the impact resistance of rigid plastics to ensure their performance and safety. DIN 53357 is a widely recognized standard that provides a method for determining the impact resistance of rigid plastics.

Scope and Definitions: DIN 53357 defines the impact resistance of rigid plastics as the ability of a material to withstand impact without cracking or shattering. The standard applies to rigid plastics with a thickness of up to 10 mm. The test method involves striking a specimen with a pendulum-type impact tester, and the energy required to cause damage is measured.

Test Equipment: The test equipment consists of:

  1. Pendulum-type impact tester with a striking edge or a hemispherical striker
  2. Specimen support
  3. Measuring device for impact energy

Test Procedure: The test procedure involves the following steps:

  1. Preparation of specimens: Specimens are cut from the plastic material to be tested, with a thickness of up to 10 mm.
  2. Conditioning: Specimens are conditioned at a specified temperature and humidity for a defined period.
  3. Test: The specimen is placed on the support, and the pendulum-type impact tester strikes the specimen with a defined energy.
  4. Evaluation: The impact energy required to cause damage is measured, and the results are evaluated.

Evaluation of Results: The results of the impact test are evaluated based on the energy required to cause damage. The impact resistance is expressed in terms of the impact energy required to cause cracking or shattering.

Significance of Impact Resistance Testing: Impact resistance testing is essential for evaluating the performance and safety of rigid plastics. A high impact resistance indicates that a material can withstand rough handling and harsh environmental conditions. This property is critical in applications where plastic materials are exposed to impact, such as in automotive components, construction profiles, and packaging materials.

Conclusion: DIN 53357 provides a standardized method for determining the impact resistance of rigid plastics. This standard is crucial for evaluating the performance and safety of rigid plastic materials used in various applications. By understanding the impact resistance of rigid plastics, manufacturers can select materials that meet specific requirements and ensure the durability and performance of their products.

References:

  • DIN 53357:2019-06, German standard for plastics - Determination of impact resistance of rigid plastics
  • ISO 179-1:2010, International standard for plastics - Determination of Charpy impact properties - Part 1: Non-instrumented impact test

You can download the PDF version of DIN 53357 from the DIN website or other standardization bodies.

A very specific request!

DIN 53357 is a German standard for "Testing of plastics; determination of the density of plastics". Here's a draft paper based on the standard:

Title: Determination of Density of Plastics according to DIN 53357

Introduction: The density of a plastic material is an important physical property that can affect its performance, processing, and applications. In this paper, we will discuss the method for determining the density of plastics according to the German standard DIN 53357. din 53357 pdf

Scope: This standard specifies a method for determining the density of plastics by measuring the mass of a specimen of known volume. The method is applicable to all types of plastics, including thermoplastics, thermosets, and elastomers.

Principle: The principle of the method is based on Archimedes' principle, which states that the buoyancy force exerted on an object immersed in a fluid is equal to the weight of the fluid displaced by the object. By measuring the mass of the specimen in air and in a fluid of known density, the density of the specimen can be calculated.

Apparatus:

  • Balance with an accuracy of ± 0.1 mg
  • Specimen mold or shape
  • Water or other fluid of known density
  • Thermometer
  • Barometer (optional)

Test Specimen: The test specimen should be a rectangular prism or a cylindrical shape with a volume of at least 10 cm³. The specimen should be free from air bubbles and any other defects.

Procedure:

  1. Measure the mass of the specimen in air (m_air) using a balance.
  2. Immerse the specimen in a fluid of known density (ρ_fluid) and measure its mass in the fluid (m_fluid).
  3. Measure the temperature of the fluid (T) using a thermometer.
  4. Calculate the density of the specimen (ρ_specimen) using the following formula:

ρ_specimen = m_air / (m_air - m_fluid) * ρ_fluid

Calculations: The density of the specimen is calculated using the formula above. The result should be expressed in units of g/cm³ or kg/m³.

Precision and Accuracy: The precision of the method is ± 0.1% for densities up to 1.5 g/cm³ and ± 0.2% for densities above 1.5 g/cm³.

Conclusion: The determination of density of plastics according to DIN 53357 is a straightforward method that provides accurate results. The method is widely used in the plastics industry to characterize the properties of plastic materials.

References:

  • DIN 53357:2019-02, Testing of plastics; determination of the density of plastics
  • ISO 1183-1:2019, Plastics — Methods for determining the density of non-cellular plastics — Part 1: Immersion method

Please note that this is just a draft paper, and you should verify the information with the actual standard DIN 53357 and relevant literature. Additionally, you may need to modify the paper to fit your specific requirements and format.

DIN 53357 is a critical historical technical standard for the testing of plastic sheets, films, and coated fabrics. Published by the German Institute for Standardization (Deutsches Institut für Normung - DIN), it specifically defines the procedures for determining the adhesion strength between different layers of a material or between a coating and its substrate.

While officially withdrawn as of November 2013, the standard remains widely referenced in industrial quality control and historical material specifications. Scope and Application of DIN 53357

The standard is designed to assess the force required to separate the individual layers of flexible materials. This information is vital for ensuring the integrity and durability of products like: Title: An Overview of DIN 53357: A Standard

Multilayer Packaging: Ensuring food or pharmaceutical blister packs do not delaminate.

Coated Fabrics: Testing the bond between a textile base and its plastic or elastomer coating.

Adhesive Tapes: Measuring the peel strength of pressure-sensitive adhesive (PSA) films. Test Methods: Method A vs. Method B

DIN 53357 outlines two primary test types, which are selected based on the specific material properties: DIN 53357 - 1982-10

DIN 53357 is a historical German technical standard titled "Testing of plastics sheet; adhesion test" (Prüfung von Kunststoff-Folien; Trennversuch).

Although it is a widely referenced standard for measuring the bond strength of laminated materials and plastic sheets, it was officially withdrawn in November 2013 and has not been directly replaced by a single successor. Key Technical Details

Based on its application in industry datasheets and testing guides, the standard typically involves the following:

Primary Objective: To determine the adhesion or peel strength of plastic sheets and laminated materials. Testing Method:

Peel Angle: The standard is often divided into Method A and Method B. DIN 53357-B specifically refers to a 90-degree peel angle test.

Apparatus: Requires a tensile testing machine capable of maintaining a specific constant speed, often 100 mm/min.

Measurement: Results are typically expressed in units of force over width, such as N/5cm or kg/5cm. Common Applications:

Testing the bond between layers in automotive interior laminates.

Measuring the adhesion of coatings on outdoor billboard and banner fabrics.

Determining the bond strength of pressure-sensitive tapes and laminated release coatings. Availability and Replacement Pendulum-type impact tester with a striking edge or

Because the standard is withdrawn, "long content" or the full text is primarily available through archives or specialized standard distributors:

Official Purchase: You can still obtain the 1982-10 version in German or English from Intertek Inform or DIN Media.

Modern Alternatives: For new projects, engineers often use DIN EN ISO 2411 (for rubber- or plastics-coated fabrics) or ISO 8510-1/2 (for adhesives and peel tests) as contemporary substitutes for adhesion testing. DIN 53357 - 1982-10

DIN 53357 is a withdrawn, legacy technical standard used to measure the adhesion strength of plastic sheets, laminates, and coated fabrics through methods like the 90-degree German Wheel Peel Test. While inactive since 2013, it remains a common reference in industry for quality control, often replaced in modern testing by standards such as DIN EN ISO 2411. For more details, visit DIN Media. DIN 53357-A (accredited) - FILK Test Lab

9. Test Report

The test report shall include the following information:

  • Reference to this standard (DIN 53357).
  • Type and origin of the leather.
  • Direction of testing (parallel or perpendicular to the backbone).
  • Thickness of specimens.
  • Maximum tear force and calculated tear strength.
  • Any deviations from the standard procedure.

6. Preparation of Test Specimens

6.1 Sampling: Samples shall be taken from the official sample in accordance with DIN 53350. No specimen shall be taken closer than 50 mm to the edge of the skin/hide.

6.2 Shape and Dimensions: The standard specimen shape is typically rectangular. The dimensions according to the classic DIN methodology are generally:

  • Length: 100 mm (min)
  • Width: 25 mm
  • Cut: A slit is made in the middle of the length, perpendicular to the long axis.

(Note: Specific dimensions may vary depending on whether the single-edge or double-edge method is being employed under this standard's framework. Users often utilize a standardized die cutter to ensure consistency).

6.3 Conditioning: Specimens must be conditioned in a standard atmosphere as defined in DIN 50014 (Standard atmosphere 23/50, i.e., 23°C ± 2°C and 50% ± 5% relative humidity) for at least 24 hours prior to testing.

Report: DIN 53357 (PDF)

Key Parameters Measured

The test typically measures percentage changes in:

  1. Mass (swelling or extraction)
  2. Volume (dimensional stability)
  3. Hardness (usually Shore A or D)
  4. Tensile Strength (after exposure)
  5. Elongation at Break (after exposure)

How to Perform a DIN 53357 Test (Overview)

To understand the value of the PDF, you need to know the test procedure. Here is a step-by-step summary:

1. Automotive & Transportation

Modern vehicles contain hundreds of rubber and plastic parts—fuel lines, O-rings, tank gaskets, and engine mounts. Exposure to E10, biodiesel, or synthetic motor oil can cause degradation. DIN 53357 allows manufacturers to predict failure points before mass production.

What to Look for in the PDF

When you acquire the document, ensure it includes:

  • Edition date (e.g., DIN 53357:1982-08 – confirm if still active or superseded).
  • Annexes with diagrams of the trouser test specimen shape.
  • Calculation formulas for tear strength in N/mm or N/cm.
  • Precision statements (repeatability and reproducibility limits).

Strengths (Why you might need this PDF)

  • Historical reference: Essential if you are comparing old test data certified to DIN 53357 with newer results to ISO or ASTM.
  • Specific German industry habits: Some German quality labs or legacy contracts still reference this withdrawn standard.
  • Clear, concise setup: Like most DIN standards, it is methodical and less verbose than the international versions.