ASTM D6538-12由美国材料与试验协会 US-ASTM 发布于 2012-09-01。
ASTM D6538-12在国际标准分类中归属于: 13.060.45 水检验综合。
ASTM D6538-12 自动进样器采样废水标准指南的最新版本是哪一版?
最新版本是 ASTM D6538-12(2019) 。
* 在 ASTM D6538-12 发布之后有更新,请注意新发布标准的变化。
4. Significance and UseTop Bottom
4.1 This guide provides persons responsible for designing and implementing wastewater sampling programs with a summary of the types of automatic wastewater samplers, discusses the advantages and disadvantages of the different types of samplers and addresses recommended procedures for their use. The field settings are primarily, but not limited to, open channel flows in enclosed (e.g., sewer) systems or open (e.g., streams or open ditches, and sampling pressure lines) systems.
TABLE 1 Advantages and Disadvantages of Manual versus Automatic Sampling of Wastewater (3)Type
Advantages
Disadvantages
Manual
Low capital cost
Increased variability due to sample handling
Personnel can compensate for various situations
Inconsistency in collection
Personnel can document unusual conditions
High cost of labor assuming composite or multiple grab samples are collected
Low maintenance
Repetitious and monotonous task for personnel
Extra samples can be collected in a short time if necessary
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