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Odor Evaluation Test Method

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

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  1. Odor Evaluation Test Method NonFood Compounds Listing and Registration Program Steering Committee Meeting, September 25, 2002 Alice Edmunds, NSF International

  2. Outline - USDA METHOD A - USDA METHOD B - NSF METHOD (PROPOSED 2001) - STEERING COMMITTEE RECOMMENDATIONS - RECOMMENDATIONS ADDRESSED - NSF PROPOSED METHOD REVISED - QUESTIONS & COMMENTS

  3. 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.

  4. 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.

  5. 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.

  6. Steering Committee Recommendations -More panelists -Controls

  7. 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

  8. 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

  9. 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.

  10. Summary -More Panelists Added -Controls Added

  11. Questions & Comments

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