Extended Test n-Butanol

The Burghart extended test n-butanol is developed for use in the clinic (ENT, neurology, psychiatry, internal medicine, etc.) and can be used for a detailed olfactory test, e.g. for producing expert reports. The extended test contains three modules: threshold test, discrimination test and identification test.

The extended test consists of 3 separate tests:

1. Threshold test n-butanol
2. Discrimination test
3. Identification test 16, blue

Each of these tests generates a number of points that are added to the TDI score at the end. Based on this number of points, a diagnostic classification of the sense of smell can be determined. Total duration of the complete test is 30-40 minutes.

Contents extended test n-butanol

• The threshold test has 48 Sniffin’ Sticks (32 blanks and 16 dilutions n-butanol). This module can be used to ascertain the patient’s olfactory threshold.
• The discrimination test consists of 48 Sniffin’ Sticks (48 Sniffin’ Sticks = 16 pairs of odorants each with 1 individual smell). In this case, the patient must differentiate between more or less similar smells.
• The identification test (blue version) consists of 16 Sniffin’ Sticks with everyday smells which the patient has to name using a selection card containing four definitions each.

The complete test comes with a instruction manual, evaluation materials and holder as seen on the picture above. The manual will be delivered in English/ German and is also available in other languages in digital form.

Cotton gloves and a sleeping mask can be purchased separately.

N-butanol or 2-phenylethanol version

The Sniffin’ Sticks extended test is available in 2 versions with only one difference: the smell of the target pen in the threshold test. Both extended test n-butanol and the 2-phenylethanol version consist out of the identification test, threshold test and discrimination test. The difference between the 2 versions is the odor of the target pen within the threshold test. The 2-phenylethanol version has a rose smell (and is therefor also known as the rose version) and the n-butanol version has an alcohol like smell.

Another difference is that the 2-phenylethanol version has a longer expiration date (1,5 year) compared to the n-butanol version (7-8 months). This is because the n-butanol substance is very volatile.

Shelf life extended test

Each stick is labelled with a best before date, you can use the Sniffin’ Sticks for as many persons as you want before this date. Important is that you use the stick correctly, don’t touch the tip of the pen with fingers or nose. That will contaminate the stick and you cannot use the stick anymore because you cannot guarantee the quality of the odor of the stick. The shelf life of the sticks depends on the test. The shelf life for the identification test and discrimination test is approx. 1.5 year. For the threshold test n-butanol this is shorter, approx. 8-9 months.

Due to hygienic reasons and the expiration date of these tests we cannot accept returns of the sticks.

Refill set

The holders are only needed once. If the test has passed its expiration date, you can order a refill set that only contains the sniffin sticks. Click on the following link for more info: refill set extended test n-butanol