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AOAC RESEARCH INSTITUTE
Expert Review Panel Chair Report for Fertilizers
Page 4 of 4
Criteria for Vetting Experts and Selection Process:
The original twenty‐five (25) candidates are being submitted for consideration by the Official Methods Board to
evaluate candidate methods for Fertilizers which include the subject matter areas of Metals, Nitrogen (slow
release), Phosphorus & Potassium, Total Sulfur, and Urea as per the Expert Review Panel (ERP) Policies and
Procedures. The candidates were highly recommended by the Agricultural Materials Community, the Association
of American Feed and Control Officials (AAFCO), the Association of Fertilizer and Phosphate Chemists (AFPC) and
other subject matter experts. Many of the following candidates have participated in various AOAC activities,
including but limited to, Method Centric Committees that were formed under the legacy OMA pathway. The
following members were present to review methods OMAMAN‐22, OMAMAN‐23, OMAMAN‐24, and OMAMAN‐
28.
OMAMAN‐28
1.
Bartos, James
2.
Hall, William
3.
Kariuki, Solomon
4.
Parisi, Salvatore
5.
Phillips, Heidi
6.
Provance‐Bowley,
Mary
7.
Reba, Rick
8.
Shelite, Kristopher
9.
Shoemaker, Dirk D
10.
Tan, Rechel
11.
Tsourides, Dion
12.
Wegner, Keith
OMAMAN‐22
1.
Bartos, James
2.
Hall, William
3.
Hartshorn, Jon
4.
Hojjatie, Michael
5.
Nacharaju,
Krishnamurthy
(Murthy)
6.
Nagarajan,
Rajamani
7.
Parisi, Salvatore
8.
Provance‐Bowley,
Mary
OMAMAN‐23
1.
Bartos, James
2.
Hall, William
3.
James, Barbara
4.
Kariuki, Solomon
5.
Parisi, Salvatore
6.
Phillips, Heidi
7.
Shelite, Kristopher
8.
Tan, Rechel
9.
Tsourides, Dion
OMAMAN‐24
1.
Bartos, James
2.
Hall, William
3.
Kariuki, Solomon
4.
Parisi, Salvatore
5.
Phillips, Heidi
6.
Provance‐Bowley,
Mary
7.
Wegner, Keith
ERP Orientation:
All ERP members have completed the mandatory AOAC Expert Review Panel Orientation Webinar.
Expert Review Panel Meeting Quorum
The meeting of the Expert Review Panel was held in person. A quorum is the presence of seven (7) members or
2/3 of the total vetted ERP, whichever is greater. OMAMAN‐22: Eight (8) out of the nine (9) members were
present and therefore met a quorum to conduct the meeting. OMAMAN‐23: Nine (9) out of the fourteen (14)
members were present and therefore met a quorum to conduct the meeting. OMAMAN‐24: Seven (7) out of the
eight (8) members were present and therefore met a quorum to conduct the meeting. OMAMAN‐28: Twelve (12)
out of the fifteen (15) members were present and therefore met a quorum to conduct the meeting.
Standard Method Performance Requirements (SMPRs):
N/A
Conclusion:
The ERP adopted OMAMAN‐22: Determination of Nitrogen, Phosphorus, Potassium and other nutrients release in
Slow‐ and Controlled‐Release Fertilizers, OMAMAN‐23: Single Laboratory Validation of a Method for the
Determination of Phosphorus and Potassium in Commercial Inorganic Fertilizers by ICP‐OES, and OMAMAN‐24:
Determination of Total Sulfur in Fertilizers by High Temperature Combustion as AOAC First Action Official Methods
by consensus. The decisions have been captured and reflected in the meeting minutes.
Subsequent ERP Activities:
ERP members are required to track the performance of the recently approved First Action method for a 2 year
period effective as of September 28, 2015.
ERP PROFILE SUMMARIES
284