Meeting the International Standards

The AC'SCENT® International Olfactometer not only
meets all the standards, it's setting new ones!

The AC'SCENT® meets all international standards for olfactometry including:

ASTM E679-04

Determination of Odor and Taste Threshold by a Forced-Choice Ascending Concentration Series Method of Limits.   (United States)

EN 13725:2003

European Standard on Determination of Odour Concentration by Dynamic Olfactometry.  (European Community)

NVN2820

 Provisional Standard: Air Quality.   Sensory Odour Measurement using an Olfactometer.  (Netherlands)

VDI 3881

 Olfactometry: Odour Threshold Determination.  (Germany)

ASTM E679-04

A&WMA EE-6

NVN 2820

VDI 3881

EN 13725:2003

AC’SCENT®

Dynamic Dilution

X

X

- - -

X

X

X

Triangular Forced-Choice Method

X

X

X

X

X

X

Binary Forced-Choice Method

- - -

- - -

X

X

X

X

Yes / No Method

- - -

- - -

- - -

X

X

X

Ascending Concentration Series

X

X

X

X

X

X

Integral Odor Free Dilution Air

X

X

X

X

X

X

Integral Dry Dilution Air

- - -

- - -

X

X

X

X

Presentation Flow Rate (lpm)

- - -

8

20

20

20

10 or 20

Presentation Face Velocity (m/s)

- - -

0.02-0.05

0.09-0.26

- - -

0.2-0.5

0.25

Presentation Mask Diameter (cm)

- - -

6 - 10

4 - 7

- - -

3 - 5

4

Maximum Lower Dilution Ratio

- - -

2^3

- - -

2^3

2^7

2^3

Minimum Upper Dilution Ratio

- - -

2^13

2^14

- - -

2^14

2^16

Dilution Ratio Range

- - -

- - -

- - -

- - -

2^13

2^16

Dilution Ratio Factor Increase

2-3

2

1.4-3.0

2

1.4-2.4

2
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