why do ciggerettes test low for tar and nicotine when tested by some machines?

a. the ciggerettes filter the masks the amount of nicotine and tar the ciggerettes actually contains.
B. the machines are not programmed to check for significant amounts of tar and nicotine.
C. the machine covers the holes around the circumfrence of the filter
D. the machine does not cover the holes around the circumfrence of the filter.

Question

why do ciggerettes test low for tar and nicotine when tested by some machines?

a. the ciggerettes filter the masks the amount of nicotine and tar the ciggerettes actually contains.
B. the machines are not programmed to check for significant amounts of tar and nicotine.
C. the machine covers the holes around the circumfrence of the filter
D. the machine does not cover the holes around the circumfrence of the filter.

anonymous · Answer

http://www.ncbi.nlm.nih.gov/pubmed/11208883 This "Might" be of help.