Astm D61821 Pdf

: Standardizes temperature and humidity to ensure test results are accurate and repeatable across different laboratories. Key Procedures :

: Tests can be performed on "Dry" leather or "Wet" leather (submerged in water for 20 minutes before testing) to simulate different real-world conditions. 分析测试百科网 💡 Why It Matters astm d61821 pdf

: 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 : Standardizes temperature and humidity to ensure test