Tyson false drug test reading Logansport Indiana

I went to Tyson in Logansport, Indiana for a job interview. I answered all the questions that the hiring person asked. That went okay. So I moved on to the next step which is drug testing and a physical part. I only made it to the drug test part. She said I failed the drug test for marijuana and I don't see how that is correct. My urine test reading temp was 94 which that means I passed. She marked the box where it asks if the  temperature between 90 and 100 F. She marked yes. I seen the tempeture and it said 94 F. She said I couldn't get hired because of the failed drug test. I did research of the passing tempature and it states anything 90 to 100 you pass. I have the paper to prove it. Here is the website I found where it states that 90 to 100 is passable.

secure.in.gov/icrc/2742.htm

my research