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TAPPI T 257
作者:TECERT 发布于:2022-12-31 19:50:44 检测认证一站式服务 收藏:Ctrl+D
摘要:TAPPI T 257 Sampling and Preparing Wood for Analysis 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 257 | Sampling and Preparing Wood for Analysis |
1.1 This practice is applicable to the sampling of wood for all chemical tests.
1.2 The procedures describe the sampling of wood in all forms, i.e., logs, chips, or sawdust.
1.3 Two sampling plans are described: A probability sampling plan which provides test units from which some property of the wood may be determined within known and controlled limits at a minimum total cost; an economic or engineered sampling plan which minimizes errors due to variations in the raw material or the quality of the lot.