Odor Evaluation Test Method

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Presentation transcript:

Odor Evaluation Test Method NonFood Compounds Listing and Registration Program Steering Committee Meeting, September 25, 2002 Alice Edmunds, NSF International 11/10/2018

Outline - USDA METHOD A - USDA METHOD B - NSF METHOD (PROPOSED 2001) - STEERING COMMITTEE RECOMMENDATIONS - RECOMMENDATIONS ADDRESSED - NSF PROPOSED METHOD REVISED - QUESTIONS & COMMENTS 11/10/2018

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. 11/10/2018

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. 11/10/2018

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. 11/10/2018

Steering Committee Recommendations -More panelists -Controls 11/10/2018

Recommendations Addressed Panelists - 10-12 panelists typically available - Minimum of 7 panelists - Trial period of 10 smelling sessions - Trained to exclude use of perfumes, lotions, & smoking 11/10/2018

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 11/10/2018

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. 11/10/2018

Summary -More Panelists Added -Controls Added 11/10/2018

Questions & Comments 11/10/2018