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Analysis Report Notations

For each report type, please find the Analysis Report Notation in location specified below:

Standard Report - Find notation under 'Notes Column'

Inspector Report - Find notation under 'Analysis Note'

Real Estate Report - Find notation within interpretation (blurb that describes problem)

End User Report - Find notation within interpretation (blurb that describes problem)

School Report - After picoCuries

See notation descriptions below

M Missing start or ending time or date. If the start or ending day or time is missing, analysis cannot be completed. If the missing data is provided after the fact, a reprocessing fee is charged.

L Long longer than recommended. Result represents the last 3 days of test period.

S Short Exposure...not exposed long enough. Estimated result only.

N Not Exposed Long Enough...less than 46 hours. No result is available.

D Long Decay time...the sample arrived too late. (more than 192 hours) for valid analysis. Estimated result only.

E Excessive decay time...the sample arrived so late (more than 12 days) that NO result is available.

X The temperature indicated was outside the acceptable range (<35F - >90F). Estimated result only.

K The test kit was used past the expiration date. It is now expired.

W Wet Sample...Test was exposed too long in a damp environment. Estimated result only.

U Unsealed...sampler was improperly sealed. Most of the radon may have escaped. NO result is available.

F Faulty handling by user. NO result is available.

P Foam Plug was left in sampler and may have caused radon leakage. NO result is available.

T Torn in transit. NO result is available. Free replacement in most cases.

I Invalid Test.

COverexposed. Exposed longer than the recommended MAXIMUM length of exposure. No result is available.

For further explanation of the various notations, or any other questions, please call Air Chek at  (828) 684-0893 Mon - Fri 8:30 to 5:30 pm Eastern Standard Time  or email

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