FAQ #9
Q. What is the difference between a "certified" tube and an "uncertified" tube?
A. “Certified” tubes undergo a weight loss certification procedure that determines the emission rate of the tube by the amount of weight in nanograms lost over a given time, usually minutes. Depending on specific tube parameters and emission rate requirements, some tubes may take several weeks to certify.
The KIN-TEK certification procedure is traceable to NIST through temperature parameters and weight balance measurement devices that are directly traceable to NIST.
A “certified” tube comes with a printed certificate detailing the emission rate and the corresponding serial number of the tube. An “uncertified” tube does not get an assigned serial number, does not undergo the certification procedure, and is sold with no certificate.
No records are kept for “uncertified” tubes.