Odd Language #213: Sample Error?

At my new job, there are two sets of log books labelled “Sample Drying Log 60º +” and “Sample Drying Log 40º”.

The issue: “Sample” refers to rock and soil samples, not that this is a sample of a type of log. At first, I thought that, since there are two of each log, one of each log was a sample of how to fill out the log. Nope.