Automatic weighing system vs. manual weighing precision comparison in PM-loaded filter measurements under different humidity conditions.

ABSTRACT: Currently, there is a lack of research directly comparing the precision of automatic weighing systems and manual weighing in the context of particulate matter (PM) filter equilibration and measurements under different humidity conditions. During experimental measurements, three different types of PM-loaded filters were weighed using manual and automatic balances. During manual weighing, every filter was weighed twice in three different relative humidity conditions. The same procedure was done using an automated weighing system. In most cases, it was found that under relative humidities in the range of 30-55% RH, the manual and automated methods can be treated as referential. Regarding device stability, very slight but overall better precision was found for 30% RH, suggesting that 40 CFR Pa

SUBMITTER: Chyzhykov D 

PROVIDER: S-EPMC10618374 | biostudies-literature | 2023 Oct

REPOSITORIES: biostudies-literature