1. Odor Evaluation Test Method
NonFood Compounds Listing and Registration Program
Steering Committee Meeting,
September 25, 2002
Alice Edmunds, NSF International
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2. 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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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.
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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.
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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.
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6. Steering Committee Recommendations
-More panelists
-Controls
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7. Recommendations Addressed Panelists
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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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
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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).
panelists (7 minimum).
- Positive & negative controls.
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10. Summary
-More Panelists Added
-Controls Added
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11. Questions & Comments
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