Download or read book QB T 1811 1993 Translated English of Chinese Standard QBT1811 1993 written by https://www.chinesestandard.net and published by www.ChineseStandard.net. This book was released on 2021-09-03 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: This standard specifies the test principles, test instruments, specimen preparation, test procedures, calculations and test reports of permeability to water vapor of leather, under standard conditions. This standard applies to all leathers.