CIH Study Question Answer Key 043

CIH Category: IH Sampling

Samples should be considered invalid if the back-up section of contains ___ of the contaminant.

a) 33%
b) 5%
c) >25%
d) <10% The Answer is “c” >25%



CIH Review Online Course

Planning to take the CIH Exam soon? Sign-up for our hybrid CIH Review to make sure you’re ready for test day! Course materials include recorded lectures and access to a weekly live instructor session.