We need to know what your buyer asks for
- Purity: Three part separation
- Other Seed Determination (OSD): Crop and Weed Search
- Germination: 400 seeds
- TZ: 400 seeds
ISTA Bulk Exam: the Determination of Other Seeds is reported as a complete, limited, reduced or reduced-limited test.
- Complete test: Whole working sample is searched for all other seeds (complete test does not mean purity and germination)
- Limited test: Search is restricted to stated species in the whole working sample
- Limited Reduced test: Search for list of species in less than whole working sample
- Reduced test: Only part of the working sample is examined
ISTA Germination (400 seeds): to determine the percentage
of live seeds that produce normal seedlings under favorable germination conditions.
ISTA Tetrazolium (400 seeds): to make a quick estimate of germination potential.
Moisture: to determine the moisture content of seeds. Sample must be in a moisture proof container.
1,000 Seed Weight: to determine the weight per 1,000 pure seeds of the submitted sample.
ISTA Endophyte: immunoblot method for the detection of Neotyphodium spp. in Festuca and Lolium spp.
Verification of Species: to determine the extent that the submitted sample conforms to the species or variety as requested by applicant. Lolium spp. Only (Fluorescence test)
Blue International Certificates (BIC):no lot size limits, not officially drawn
Orange International Certificates (OIC): Officially Drawn by ISTA Authorized Sampler, and Lot size limits
ISTA Report: is issued when species submitted are not under the ISTA rules, but tested in accordance to ISTA methodology.
Provisional certificate: is an ISTA Certificate issued before the completion of a test or tests. It is marked PROVISIONAL, and includes a statement under ‘Other Determinations’ that a final certificate will be issued upon completion.
Duplicate certificate: A duplicate is an exact printed copy, not a photo copy, of a completed ISTA certificate, marked DUPLICATE.
Authorized ISTA Sampler: A sampler who is trained to pull ISTA samples and who is authorized by an ISTA accredited lab. (Example: Oregon Dept. of Ag., Oregon State University, SGS-Mid West Seed Services, Agri Seed Testing Samplers).