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Nitrogen Standards
Nitrogen standards can be confusing, because Nitrogen exists in so many forms and nomenclature is not always consistent. Our practice is to name each standard according to the species being measured.
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Sep 21, 2018
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Available Lots
r4128000-1a
Lot Code
Location
Available
Shelf Life
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CofA
1403E63
TX
14
24 months
FEB 2026
2401G98
MD
21
24 months
JAN 2026
2401G98
CA
12
24 months
JAN 2026
4311B67
CA
1
24 months
OCT 2025
4401T06
IN
9
24 months
JAN 2026