標準號：BS ISO 11556-2005
中文標準名稱：紙和紙板.利用單個垂直懸吊試驗樣片測定卷曲度
英文標準名稱：Paper and board - Determination of curl using a single vertically suspended test piece
標準類型：Y31
發布日期：2005/10/31 12:00:00
實施日期：2005/10/31 12:00:00
中國標準分類號：Y31
國際標準分類號：85.060
適用范圍：This International Standard gives a procedure for determining the curl of paper and board using a vertically suspended test piece, and defines the terms used in curl measurement. This International Standard may be used to measure any curl when — the curl formed approximates the arc of a circle; — the curl is stable enough to remain constant during the time required to cut the test pieces and make the measurement. This primarily includes curl in paper or board as received or after exposure to a constant climatic condition, such as a test room or print shop. NOTE 1 The choice of conditioning climate and conditioning time depends on the purpose of the testing. NOTE 2 For papers coated on one side or gummed-label papers, a period of at least 24 h, after production, should be allowed to permit the paper to stabilize before any curl tests are done.