ASTM D6182-21 establishes a standardized, Bally flexometer-based method for evaluating the flexibility and adhesion of surface coatings on finished leather, specifically detecting cracking, delamination, and discoloration. The test simulates real-world stress on materials for applications like footwear and upholstery, ensuring quality control by simulating continuous flexing. For the full standard, visit ASTM International.
This is the most likely match for the "-21" suffix in your query, which refers to the 2021 revision of the standard. 分析测试百科网
: It defines standard procedures for conditioning plastic materials before and during testing. Because temperature and humidity significantly affect the physical and electrical properties of plastics, this practice ensures that test results are reliable and comparable across different laboratories.
: It covers various procedures (designated as Procedures A through F) for specific environments, such as standard laboratory atmospheres ( relative humidity) or elevated temperatures. ANSI Webstore ASTM D6182 : Flexibility and Adhesion of Finish on Leather astm d61821 pdf
If your query is specific to leather testing, the correct designation is ASTM D6182 . The latest version is the 2023 revision ( ASTM D6182-23 ANSI Webstore
: This test method evaluates the resistance of finished leather coatings to cracking, delamination, or discoloration when subjected to repeated flexing. Methodology : Technicians use a Bally Flexometer
to flex leather samples for a fixed number of cycles (typically 100 cycles/min). It is widely used for quality control in the footwear, garment, and upholstery industries. Exclusions The “D61821” Mystery: A Typo, or a Clue
: This method does not apply to "wet blue" (chrome-tanned but unfinished) leather. iTeh Standards Which standard are you looking for? I can provide more specific details on the conditioning procedures for plastics Bally Flexometer test for leather finishes.
Note: ASTM D61821 is not a standard designation within the active ASTM International cannon. Based on user search patterns and typographical analysis, this article addresses both the potential confusion with ASTM D618 (Standard Practice for Conditioning Plastics for Testing) and the structure of obtaining any ASTM standard in PDF format. A specific section addresses how to handle non-existent or mis-typed standards.
The confusion starts with the number itself. ASTM standards follow a strict format: Designation (e.g., D = plastics), number, and year of publication. When someone searches “ASTM D61821 PDF,” they’re likely thinking of ASTM D618-21—the 2021 version of the Standard Practice for Conditioning Plastics for Testing. The missing hyphen? A common typo, but one with big implications. There is no ASTM D61821 standard—only a corrected, modern take on an aging protocol. Part 2: How to Find the Correct "ASTM
Now that we have corrected the keyword to ASTM D618-21, here is how you legally and safely obtain the PDF.
If you are a student or faculty member, your university library may have a site license to ASTM Compass. You can download the PDF for free through your institution's portal.