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Below is basic information regarding our most popular methods. Please reach out to us at This email address is being protected from spambots. You need JavaScript enabled to view it. for more details. 

Ammonia

FIA-010_Method-for-Ammonia-Determination-v2.1.pdf

Method number Description Principle Compliant with
FIA-010 Gas diffusion Salicylate N/A
FIA-012  Gas diffusion o-phthalaldehyde EPA Recommended

Ammonia, TKN

FIA-010_Method-for-Ammonia-Determination-v2.1.pdf

Method number Description Principle Compliant with
FIA-014 Gas diffusion Salicylate N/A
FIA-015 Gas diffusion Salicylate EPA 351.2

Beta-glucan

Method number Description Principle Compliant with
FIA-110  Calcofluor Calcofluor N/A

Chloride

Method number Description Principle Compliant with
FIA-050 Ferric chloride-mercuric (II) thiocyanate SM 4500-Cl-

Cyanide (total)

Method number Description Principle Compliant with
FIA-061 N/A ASTM D7511-09

Cyanide (WAD)

Method number Description Principle Compliant with
FIA-060 Ferric chloride-mercuric (II) thiocyanate EPA OIA-1677

Hexavalent chromium

FIA-140

Iron

Method number Description Principle Compliant with
FIA-120  Preconcentration Luminol N/A

Nitrate

Method number Description Principle Compliant with
FIA-020 Cd reduction, Griess reagent N/A
FIA-026 Cd reduction, Griess reagent  EPA 353.2, SM 4500-NO3
FIA-021 Griess reagent N/A

o-Phosphate

Method number Description Principle Compliant with
FIA-070 Molybdenum Blue N/A
FIA-071 Fast Phosphate ™ Molybdenum Blue N/A
FIA-072 Olsen manifold Molybdenum Blue N/A
FIA-073 Sequential flow injection Molybdenum Blue EPA 365.1

Sulfate

Method number Description Principle Compliant with
FIA-040
Colorimetric Barium chloride, Methylthymol Blue SM 4500-SO42- G
FIA-041
Turbidimetric Barium chloride N/A

TKN digestion

Method number Description Principle Compliant with
FIA-100
Colorimetric Sulfuric acid, copper sulfate EPA 351.2

Total phosphorus

Method number Description Principle Compliant with
FIA-080 Segmented flow analysis (SFA)
Molybdenum Blue EPA 365.1, SM 4500-P. B.5

Urea

Method number Description Principle Compliant with
FIA-090  Flame photometry o-phthalaldehyde, N-1-Naphthylethylene diamine N/A

Regulatory Compliance

Conformance with federal, state, and local regulations is an extremely important aspect of instrument use. To accompany our instruments, we offer methods that are EPA compliant for drinking water, wastewater, and other applications.

We try to make it clear on our methods exactly which EPA or Standard Methods method they follow. However, sometimes the sheer number of various regulatory bodies makes it difficult to list every possible method that can be run on our instruments. If you do not see the exact method that you require listed on our website, please get in touch with us with your specific requirements – most likely we will be able to meet them.