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Odor Evaluation Test Method. NonFood Compounds Listing and Registration Program Steering Committee Meeting, September 25, 2002 Alice Edmunds, NSF International. Outline. - USDA METHOD A - USDA METHOD B - NSF METHOD (PROPOSED 2001) - STEERING COMMITTEE RECOMMENDATIONS

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Odor Evaluation Test Method

NonFood Compounds Listing and Registration Program

Steering Committee Meeting,

September 25, 2002

Alice Edmunds, NSF International


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Outline

- USDA METHOD A

- USDA METHOD B

- NSF METHOD (PROPOSED 2001)

- STEERING COMMITTEE

RECOMMENDATIONS

- RECOMMENDATIONS ADDRESSED

- NSF PROPOSED METHOD REVISED

- QUESTIONS & COMMENTS


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USDA Odor Test Method A(active agents)

-Prepare sample to recommended dilution.

-Pour into stainless steel pan.

-Drain from pan (10-15 seconds).

-Rinse pan if required by category code.

-Sniff (hold pan ~6-inches from face).

-Product fails if majority detect odor.

-3 panelists.


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USDA Odor Test Method B(fragrances)

-Prepare sample to recommended dilution.

-Pour sample into beaker.

-Sniff (hold beaker ~6-inches from face).

-Product fails if majority detect odor.

-3 panelists.


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NSF Method(Proposed 2001)

-Prepare sample to recommended dilution.

-Dip stainless steel sheet in sample.

-Drain stainless steel sheet (10-15 seconds).

-Rinse stainless steel sheet if required by category code.

-Sniff (hold pan ~6-inches from face).

-Product fails if majority detect odor.

-3 panelists.


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Steering Committee Recommendations

-More panelists

-Controls


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Recommendations AddressedPanelists

- 15-20 panelists

- 10-12 panelists typically available

- Minimum of 7 panelists

- Trial period of 10 smelling sessions

- Trained to exclude use of perfumes, lotions, & smoking


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Recommendations Addressed Controls

- Negative control- water

- Positive control- 2 mg/L limonene

- Product fails if ≥ 20% panelists detect odor

- Test invalid if ≤80% panelists correctly respond to controls


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NSF Proposed Method- Revised

- Prepare sample to recommended dilution.

- Pour sample into stainless steel pan.

- Drain pan (10-15 seconds).

- Rinse pan if required by category code.

- Sniff (hold pan ~6-inches from face).

- 7-20 panelists (7 minimum).

- Positive & negative controls.


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Summary

-More Panelists Added

-Controls Added



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