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TAPPI T 429
作者:TECERT 发布于:2022-12-31 19:45:16 检测认证一站式服务 收藏:Ctrl+D
摘要:TAPPI T 429 Alpha-Cellulose in Paper 联系我们:info@tecert.com 安排测试 / Contact us for testing.
标准编号 Standard/Code | 标准名称 Standard Title |
TAPPI T 429 | Alpha-Cellulose in Paper |
This method describes a procedure for determining the alpha-cellulose in paper. Alpha-cellulose is empirically defined as the fraction that can be filtered out of a mixture consisting of the fibrous material and sodium hydroxide solution (7.3%) of maximum dissolving power, after the fibers have previously been swollen with sodium hydroxide solution (17.5%). This method is applicable to and is intended primarily for papers made from rags or chemical wood fibers. It is not suitable for papers containing large amounts of lignin such as newsprint.
Test Requirement 测试要求:
α-纤维素
Sample Size 样品数量 / 送样规格: 4pcs
Lead Time / TAT (Turn Around Time) 测试周期: 常规服务 Regular service 7-9 working days
Report Summary 报告摘要: