Water and Wastewater Analysis Service and R&D

We initially obtained ISO/IEC Certificate No. 17025 in June, 2009 and updated certificate No. 17025/2017 has been issued in November, 2019.
We also certified with 62 parameters, including 58 parameters for chemical analysis, 4 parameters for biological analysis. We are confident that our analysis work is highly reliable.

Laboratory analysis works

License No. VILAS361.
Effective date: 11th July 2021 (updated every 3 year)

(as of December 31st, 2020)

Nitrite (NO2-) Nitrate (NO3-) Chloride (Cl-)
Fluoride (F-) Total phosphorous (T-P) Phosphate (PO43-)
Bromide (Br-) * Organic Phosphorous (Org-P) Sulfate (SO42-)
Sulfide (S2-) Sodium (Na+) Lithium (Li+) *
Potassium (K+) Ammonium (NH4+) Calcium (Ca2+)
Magnesium (Mg2+) Total Solids (TS) Total Suspended Solids (TSS)
Total Dissolved Solids (TDS) MLVSS MLSS
Iron (T-Fe) Copper (Cu) Zinc (Zn)
Total Chromium (T-Cr) Chromium III (Cr-III) Chromium VI (Cr-VI)
Mercury (Hg) Barium (Ba) Nickel (Ni)
Manganese (Mn) Cadmium (Cd) Lead (Pd)
Aluminum (Al) Tin (Sn) Arsenic (As)
Temperature (°C) pH Turbidity (NTU)
Acidity Color (Pt-Co.) Dissolved Oxygen (DO)
Carbon Dioxide (CO2) Conductivity Alkalinity
Total Hardness (T-H) Calcium Hardness (CaCO3) Biochemical Oxygen Demand (BOD5)
Chemical Oxygen Demand (CODCr) Chemical Oxygen Demand by Potassium Permanganate (CODMn) Silica (SiO2)
Total Coliform E. Coli Bacteria
Residual Chlorine (Cl2) Total Organic Carbon (TOC) Cyanide (CN-)
Total Kjedahl Nitrogen (TKN) Total Nitrogen (T-N) Phenols
Mineral Oil Animal-Vegetable Oil & Fat Surfactants
Oil & Grease Volatile Fatty Acids(VFAs) * Smell *

* These items can be analyzed by internal method without the certificate in VILAS.

Major Analysis Equipment

AAS for testing heavy metals

FT-IR for testing Oil & Grease

Ion Chromatography


TOC meter


BOD Incubator



Bacteria Incubator



Distillation UDK

Biohazard Safety Cabinet (Class II)

pH meter

Fluoride meter


In our laboratory, in order to establish the optimum treatment method according to the characteristic of water and wastewater, we can provide customers with a well-founded and befitting design by conducting treatment tests with a full range of test equipment.
In addition, we are also engaged in technological development activities for advanced treatment plants such as the ultra-high-speed coagulation sedimentation tank; GK-SEPARATOR and the Upflow Anaerobic Sludge Blanket (UASB) method; GK-UASB.

Our Quality Certificates