The standard sets strict guidelines for the sample preparation to ensure test accuracy.
If you need a general idea of how the test works for reference:
This review of JIS K 6380 (Rubber Packing Material - Classification of Physical Properties) examines its role as a fundamental Japanese Industrial Standard for the categorization and technical evaluation of industrial rubber sheets and gaskets. Overview of the Standard
JIS K 6380 establishes a comprehensive classification system for the physical properties of rubber materials used in industrial packings. It serves as a benchmark for manufacturers and engineers to ensure material consistency and performance across various applications, ranging from simple buffers to complex chemical-resistant seals.
Key Scope: It covers general industrial rubber packing materials but specifically excludes sponge rubber, ebonite, and O-rings.
Document Length: Typically around 20 pages in its PDF format.
Historical Context: The standard has undergone several revisions (1976, 1994, 1999, 2014) to adapt to modern material science. Core Evaluation Criteria
The PDF provides standardized testing methods and classification codes for several critical performance metrics:
Hardness (Type A): Uses the durometer method to classify the material's resistance to indentation.
Tensile Strength & Elongation: Specifies minimum thresholds for durability and flexibility.
Heat Resistance: Evaluates changes in hardness and tensile strength after exposure to high temperatures (e.g., 100∘C100 raised to the composed with power C 225∘C225 raised to the composed with power C for specialized variants).
Oil Resistance: Measures volume changes when exposed to test oils, which is vital for automotive and machinery seals. Application & Material Compatibility JIS K 6380:1999 Rubber packing material - Intertek Inform
This report summarizes the JIS K 6380 standard, which governs the classification and performance requirements of industrial rubber packing materials. Overview of JIS K 6380
JIS K 6380 is a Japanese Industrial Standard titled "Rubber packing material - Classification of physical properties". It establishes a uniform system for identifying rubber materials based on their physical properties, primarily for use in industrial gaskets and seals.
Current Version: JIS K 6380:2014 (supersedes the 1999 and 1976 editions).
Scope: Specifically defines materials for industrial rubber packings. It excludes sponge rubber, ebonite, and O-rings.
Key Reference Standards: Testing methods for these materials are defined by related standards such as JIS K 6251 (tensile stress-strain) and JIS K 6253 (hardness). Classification System
Materials are designated using a series of alphanumeric codes that define their mechanical and environmental resistance. Manufacturers like Togawa Rubber use these codes to certify their product lines. Performance Metric Evaluation Method (Typical) Hardness Durometer Type A Tensile Strength MPa (Minimum required value) Elongation % (Break point) Heat Resistance Change in properties after aging (e.g., 72h @ 100°C) Oil Resistance Volume change in test oils (e.g., IRM903) Commonly Classified Materials
Standard industrial rubber sheets often list their "JIS Corresponding No." to help engineers select the right material:
CR (Chloroprene Rubber): Balanced resistance to weather, heat, and oil. NBR (Nitrile Rubber): High resistance to oils and fuels.
Silicone (VMQ): Excellent for extreme temperatures and electrical insulation; often used in food industries.
Fluororubber (FKM): High-performance chemical and heat resistance. Where to Find the PDF
Official PDF copies are typically available through standards organizations and technical retailers. Note that these are usually paid documents:
Official Publisher: The Japanese Standards Association (JSA) provides the most current official versions.
Retailers: Platforms like Intertek Inform and AFNOR Editions sell the standard in PDF format.
JIS K 6380 - Rubber Packing Material - Standards | GlobalSpec
JIS K 6380 is the Japanese Industrial Standard for Rubber Packing Materials, specifically defining the classification of physical properties for rubber materials used in industrial packings. Current Status and Availability
Latest Version: JIS K 6380:2014, which replaced the 1999 version.
Scope: It specifies the performance requirements for rubber materials used in industrial seals and packings, excluding sponge rubber, ebonite, and O-rings.
Testing Methods: The standard references other core rubber tests, such as: JIS K 6253: Hardness testing. JIS K 6257: Heat aging properties.
JIS K 6258: Effect of liquids (oil resistance using IRM903). PDF Resources and Technical Data
If you are looking for a PDF of the standard or technical datasheets based on it, you can refer to the following sources:
Official Purchase: Full PDF versions are generally paid documents available through the Japanese Standards Association (JSA) or distributors like Intertek Inform.
Manufacturer Summaries: Many manufacturers provide PDF catalogs that include abstracts and performance charts based on JIS K 6380:
Togawa Rubber Co.: Their Rubber Sheet Catalog includes specifications for CR, NBR, and Silicone sheets categorized by JIS K 6380 performance classes.
Tigers Polymer: Provides technical notes on rubber packing materials and their relation to JIS standards.
Reference Previews: You can view standard abstracts and classification tables on Kikakurui (Japanese language) or via document sharing sites like Scribd.
g., oil resistance or hardness levels) within this standard to match a material? JIS K 6380:1999 Rubber packing material - Intertek Inform
JIS K 6380 is the Japanese Industrial Standard for Rubber Packing Materials, specifically focusing on the classification of their physical properties. It serves as a benchmark for selecting and testing industrial rubber sheets based on their resistance to environmental factors like oil, heat, and chemicals. Key Details of the Standard
Official Title: Rubber packing material - Classification of physical properties.
Current Version: The most recent major revision was published on September 22, 2014. Historical Timeline:
1976/1979: Early versions titled "Industrial Rubber Packing Materials". 1994: Classification system for industrial rubber. 1999: Updated specifications for packing material. jis k 6380 pdf
Scope: It categorizes rubber materials (like NBR, CR, Silicone, and EPDM) by their performance classes, ensuring they meet specific tensile strength, hardness, and durability requirements. Common Industrial Applications
Industrial rubber sheets are often manufactured to meet these JIS K 6380 performance classes. Manufacturers like Togawa Rubber Co. and Tigers Polymer provide technical sheets referencing this standard: JIS K 6380:1976 (R1979) PDF Download - NormSplash
PDF Download JIS K 6380:1976 (R1979): Industrial Rubber Packing Materials. NormSplash
JIS K 6380 - Rubber Packing Material - Standards | GlobalSpec
The JIS K 6380 standard, titled "Rubber packing material - Classification of physical properties," is a technical regulation established by the Japanese Standards Association (JSA). It provides a comprehensive classification system for rubber materials used in industrial packings and similar products. Scope and Purpose of JIS K 6380
This standard defines the performance classes and physical property requirements for vulcanized rubber materials. Its primary goal is to standardize how manufacturers and engineers categorize rubber based on its resistance to heat, oil, and mechanical stress.
Key Exclusions:While broad, JIS K 6380 explicitly excludes certain rubber forms: Sponge rubber Ebonite (hard rubber) O-rings (typically covered by JIS B 2401) Material Classifications
Industrial rubber sheets and packings are often labeled according to their corresponding JIS K 6380 performance class. Common materials categorized under this system include:
Natural Rubber (NR): Used for general-purpose industrial packing and floor mats where oil resistance is not required.
Nitrile Rubber (NBR): Highly valued for its excellent oil resistance.
Chloroprene Rubber (CR/Neoprene): Balanced for weather, heat, and flame resistance.
Silicone Rubber: Specialized for extreme temperature stability and electrical insulation.
Fluororubber (FKM): Known for superior chemical and high-temperature oil resistance. Core Testing Requirements
To comply with JIS K 6380, materials must undergo standardized tests defined by other JIS rubber standards:
Hardness: Measured using the Durometer or IRHD methods (JIS K 6253).
Tensile Stress-Strain: Evaluates the strength and elongation of the material (JIS K 6251).
Heat Ageing: Determines how the material degrades over time at high temperatures (JIS K 6257).
Effect of Liquids: Essential for determining oil resistance levels (JIS K 6258). How to Access the PDF
The latest active version is JIS K 6380:2014, which superseded the 1999 edition. Official copies are not typically available for free due to copyright; however, they can be purchased or requested in electronic PDF format from the following sources: JIS K 6380:2014 Rubber packing material - Intertek Inform
JIS K 6380 is the Japanese Industrial Standard for Rubber Packing Materials
, specifically classifying them by their physical properties and performance [16]. Key Aspects of JIS K 6380 : It establishes a Performance Class
system for rubber packing materials used in general industrial applications [5.11, 16]. Classification
: Materials are typically categorized by their resistance to various environmental factors: Oil Resistance : Often tested using oils like [5.1, 5.11]. Temperature Resistance
: Defines operating ranges for heat and cold (e.g., silicone and NBR variations) [5.11]. Chemical & Weather Resistance
: Essential for outdoor or industrial chemical exposure [5.11]. Material Types : Common rubber sheets compliant with this standard include (Nitrile), (Chloroprene), Natural Rubber [5.6, 5.11]. Useful Guides & PDF Resources
Several manufacturers provide detailed technical catalogs that act as practical guides for using JIS K 6380: Togawa Rubber Sheet Guide technical PDF
lists specific product part numbers, their corresponding JIS K 6380-2014 performance classes, and detailed specifications for oil and chemical resistance [5.1, 5.11]. Tigers Polymer Catalog
: Provides an abstract of the standard and explains physical property testing methods like compression set elongation at break Rubber Sheet Catalog [5.3, 5.13]. Seal Design Reference : For O-ring and seal sizing, the Bay Seal Company Guide
includes JIS-specific size references and material compatibility charts [5.5]. Testing Parameters Under JIS K 6380
When reviewing a JIS K 6380 datasheet, look for these specific values: : Resistance to indentation. Tensile Strength
: Maximum stress the rubber can withstand while being stretched. Compression Set
: The permanent deformation remaining after a material has been compressed [5.13]. Aging Properties
: How the material's physical properties change after prolonged heat exposure. comparison table
of different rubber materials (like NBR vs. EPDM) based on these JIS standards?
The JIS K 6380 standard, titled "Rubber Packing Material", provides a classification system for the physical properties of rubber materials used for industrial packing.
While the standard itself outlines performance requirements, it relies on other specific JIS standards for the actual preparation of test pieces. To prepare a piece according to JIS K 6380 requirements, you must follow the general procedures for vulcanized rubber. Core Reference Standards for Piece Preparation
To prepare a test piece correctly, the following standards are typically cited within JIS K 6380:
JIS K 6250: The primary standard for general procedures for preparing and conditioning test pieces for physical test methods.
JIS K 6251: Specific guidelines for preparing pieces to determine tensile stress-strain properties (often using "dumb-bell" shaped cutters).
JIS K 6253: Procedures for preparing samples for hardness testing (IRHD or Durometer methods). General Preparation Steps
Based on industrial practices for these standards, here is how you generally prepare a piece: The standard sets strict guidelines for the sample
Material Conditioning: Before cutting, the rubber sheet should be conditioned at a standard temperature (typically ) and humidity for at least 16 hours.
Cutting: Use a standardized cutter (die) to punch out the required shape from a flat rubber sheet. For tensile tests, this is usually a No. 3 or No. 5 dumb-bell shape.
Thickness Measurement: Measure the thickness of the prepared piece at multiple points using a calibrated micrometer to ensure it falls within the specified range (often for standard sheets).
Marking: For elongation tests, apply "bench marks" (reference lines) to the narrow section of the dumb-bell using an ink that does not damage the rubber.
Surface Inspection: Ensure the piece is free from visible flaws, air bubbles, or ragged edges from the cutting process, as these will lead to premature failure during testing. Standard Resources
Official copies of the standard can be purchased or previewed through the Japanese Standards Association (JSA) or Intertek Inform.
Technical excerpts for specific materials (like CNR or NBR sheets) are often provided by manufacturers such as Togawa Rubber or Tigers Polymer.
Are you preparing this piece for a specific test, such as tensile strength or compression set? RUBBER SHEET
Finding an official, paid copy of JIS K 6380 (original Japanese or English translation) isn’t as simple as Googling a free PDF. JIS standards are copyrighted by the Japanese Standards Association (JSA). While you might stumble upon scanned older editions (e.g., 1995 or 2004 revisions) on engineering forums, for professional use you should purchase the latest version via:
🛠️ Pro tip: If you’re reverse-engineering a hose assembly, check the revision year. JIS K 6380 was updated in 2004 and reconfirmed several times — but some older equipment still references the 1995 edition.
Industries that rely on the specifications within the jis k 6380 pdf include:
If your product touches any of these sectors, purchasing the PDF is a non-negotiable step.
The search for a jis k 6380 pdf often begins with a free download attempt, but professionals know that quality costs money. The official document is more than a file—it is a blueprint for safety, interoperability, and legal defense.
To recap:
By respecting the standard, you ensure that your rubber gaskets, hoses, or packing materials perform exactly as designed—preventing leaks, downtime, and catastrophic failures. Get the official jis k 6380 pdf today and build your quality assurance on a solid foundation.
Disclaimer: This article is for informational purposes only. Standards are updated periodically. Always verify that you have the latest revision of JIS K 6380. The author and publisher are not liable for any misuse of information contained herein.
The standard JIS K 6380 defines the performance classes and physical property requirements for rubber materials used in industrial packings and similar products. Originally established in 1976, the most current version is JIS K 6380:2014, which provides a systematic classification for vulcanized or thermoplastic rubber materials based on their specific industrial applications. Core Scope and Applications
JIS K 6380 is the primary Japanese Industrial Standard for rubber packing materials used across diverse industries, from automotive to chemical processing.
Included: Industrial rubber packings and similar industrial rubber products.
Excluded: Materials specifically for sponge rubber, ebonite, and O-rings (the latter often governed by JIS B 2401). Classification of Rubber Materials
The standard classifies rubber materials primarily by their physical properties and resistance to environmental factors like oil and heat:
Class A (Non-oil resistant): Typically includes materials like EPDM or Natural Rubber (NR).
Class B (Oil resistant, low swell): High-performance Nitrile Rubber (NBR) often falls here.
Class C (Oil resistant, medium swell): Often represented by Chloroprene Rubber (CR), known as Neoprene.
Class D (Extreme temperature resistance): Includes Silicone Rubber and Fluororubber (FKM/Viton). Critical Physical Properties and Testing
To ensure compliance with JIS K 6380, materials must undergo rigorous testing as outlined in related JIS standards. Key tests include: Related JIS Test Standard Importance Hardness JIS K 6253
Determines resistance to indentation using IRHD or Durometer methods. Tensile Properties JIS K 6251
Measures the stress a material can withstand before breaking. Heat Ageing JIS K 6257
Evaluates how physical properties change over time at high temperatures. Oil Resistance JIS K 6258
Determines the effect of liquids (like IRM903 oil) on the rubber's volume and strength. Compression Set JIS K 6262
Measures the material's ability to return to its original shape after being compressed. Where to Obtain the PDF
Official copies of the JIS K 6380:2014 PDF are typically available through authorized standards organizations:
Japanese Standards Association (JSA): The official publisher of JIS standards.
Intertek Inform: Provides standard downloads and historical versions.
GlobalSpec: Offers detailed standard histories and documentation for industrial users. JIS K 6380:1999 Rubber packing material - Intertek Inform
JIS K 6380 is the Japanese Industrial Standard for Rubber Packing Material
, specifically providing a classification system for the physical properties of rubber materials used in industrial packings and similar products. The standard serves as a benchmark for manufacturers and engineers to specify rubber sheets based on their performance requirements, such as oil resistance, heat aging, and hardness. Intertek Inform Key Specifications and Scope The current version of this standard is JIS K 6380:2014 , which superseded the 1999 and 1994 versions. Intertek Inform Primary Focus
: Defines rubber materials for industrial packing applications. Exclusions : Explicitly excludes rubber materials for sponges, ebonite, and O-rings Technical Content
: The standard typically covers 20 pages and uses a classification system to help users select materials based on their functional and constructional properties. Intertek Inform Classification System
Materials under JIS K 6380 are classified using specific codes that indicate their primary features and test results: Typical Markers/Tests Basic Properties Hardness (Type A), Tensile Strength, Elongation Environmental
Heat aging resistance, Ozone resistance (Code O), Low-temperature test (Code J) Resistance Surface: The surface must be smooth, flat, and
Oil resistance test (Code D/E), Water absorption, Flame resistance Physical Strength
Compression set (Code B), Tear test (Code H), Abrasion test (Code R) Common Materials Referenced Manufacturers like Togawa Rubber Tigers Polymer
often list their products with "Corresponding JIS K 6380" numbers to indicate compliance: NBR (Nitrile): High oil resistance; common for fuel-related packing. CR (Chloroprene/Neoprene): Excellent weather and chemical resistance. Silicone Rubber:
Notable for high heat and cold resistance (often -30°C to 100°C+). Natural Rubber: General-purpose industrial packing and buffers. Where to Find the PDF
Official copies of the JIS K 6380 standard are generally protected by copyright and must be purchased through authorized distributors: Japanese Standards Association (JSA): The official publisher of JIS standards. Intertek Inform: Provides the JIS K 6380:2014 1999 version in electronic format. GlobalSpec: Offers access to the standard classification of physical properties
For specific product compliance, you can often find technical data sheets (TDS) for rubber sheets from suppliers like Togawa Rubber
that summarize the JIS K 6380 test values for their specific compounds. 株式会社十川ゴム from a product data sheet? JIS K 6380:1999 Rubber packing material - Intertek Inform
Understanding Jis K 6380 PDF: A Comprehensive Guide
The Jis K 6380 PDF is a widely recognized standard in the field of plastics, specifically focusing on the testing methods for the density of plastics. Published by the Japanese Standards Association (JSA), this standard provides a detailed framework for determining the density of plastic materials, which is crucial for quality control, material selection, and product development.
What is Jis K 6380?
Jis K 6380 is a Japanese Industrial Standard (JIS) that outlines the testing method for determining the density of plastics. The standard provides a precise and reliable procedure for measuring the density of plastic materials, which is essential for various industries, including packaging, automotive, construction, and consumer goods.
Importance of Density Testing
Density testing is a critical aspect of plastic material characterization. The density of a plastic material can significantly impact its performance, processing, and application. Here are some reasons why density testing is important:
Jis K 6380 PDF Overview
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Test Method
The Jis K 6380 PDF outlines two test methods for determining the density of plastics:
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Industries That Use Jis K 6380 PDF
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Conclusion
The Jis K 6380 PDF is a critical standard for the plastics industry, providing a detailed framework for determining the density of plastic materials. By understanding the importance of density testing and the Jis K 6380 standard, manufacturers, researchers, and quality control professionals can ensure the accuracy, reliability, and comparability of density values. The standard's international recognition and widespread adoption make it an essential tool for global trade and communication in the plastics industry.
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The Jis K 6380 PDF can be accessed through various sources, including:
By accessing and understanding the Jis K 6380 PDF, professionals in the plastics industry can ensure compliance with regulations, improve product quality, and enhance their competitiveness in the global market.
You're looking for a review of JIS K 6380 PDF!
JIS K 6380 is a Japanese Industrial Standard (JIS) that specifies the testing methods for rubber products, including vulcanized rubber and thermoplastic elastomers. Here's a brief review:
Overview
JIS K 6380 PDF provides a comprehensive guide for testing rubber products, covering various physical and chemical properties. The standard is widely used in Japan and has been adopted by various industries, including automotive, construction, and manufacturing.
Content
The JIS K 6380 PDF covers the following topics:
Key Features
Pros and Cons
Pros:
Cons:
Conclusion
JIS K 6380 PDF is a valuable resource for manufacturers, suppliers, and testing laboratories involved in the production and testing of rubber products. The standard provides a comprehensive guide for testing physical and chemical properties, ensuring that products meet required specifications and regulatory requirements. While there may be some limitations, the benefits of using JIS K 6380 far outweigh the drawbacks.
Rating
Based on its content, clarity, and industry acceptance, I would rate JIS K 6380 PDF as follows: