Department of Health
Accredited laboratory for drinking water analysis
- No.
- 13-0014-2628-LW-2
- Valid
- 29 January 2026 to 31 December 2028
- Service
- Microbiological and physico-chemical analysis
- Accredited since
- 1993
Laboratory Testing and Products
A DOH-accredited laboratory for drinking water analysis, in Marikina City. Physical, chemical and microbiological analysis of water and wastewater.
01
Accreditations and 2024 Proficiency Test Result
Professional Regulation Commission, Board of Chemistry
Authorised to operate as a chemical laboratory
- Certificate
- No. 261, under RA 10657
- Valid until
- 27 August 2027
DOH National Reference Laboratory
Rated Excellent in 2024
- Scheme
- CY 2024 proficiency testing, water microbiology
- Certificate No.
- WMTL-PT-24-NCR161
- Given
- 16 December 2024
Recognized by the DENR in 2018 (C.R. No. 026/2018), renewal in progress.
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DOH accreditation
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PRC authority
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Proficiency 2024
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02
List of Water & Wastewater Test Parameters
Accredited by the DOH, for drinking water
- Thermotolerant coliform (E. coli)
- Colour, apparent
- Turbidity
- pH
- Total dissolved solids
- Residual chlorine
Other tests we run
For water and wastewater, on request. Not covered by our DOH accreditation.
Meters and instruments
- Conductivity
- Temperature
- Specific gravity
Gravimetric
- Total solids
- Total suspended solids
- Oil and grease
Colorimetric, volumetric and nephelometric
- Settleable solids
Titration
- Acidity
- Available chlorine
- Alkalinity (total, bicarbonate, carbonate, hydroxide)
- Hardness (total, calcium, magnesium)
- BOD5
- COD
- Chloride
- Dissolved oxygen
- Sulfite
Spectrophotometric
- Aluminum
- Ammonia as nitrogen
- Arsenic
- Cadmium
- Chromium (hexavalent)
- Copper
- Cyanide
- Iron
- Lead
- Manganese
- Mercury
- Nitrate as nitrogen
- Nitrite as nitrogen
- Phenolic substances
- Phosphate
- Silica (dissolved)
- Silver
- Sulfate
- Surfactants (MBAS)
- Zinc
Microbiological
- Total coliform
- Fecal coliform
- Total plate count
Wastewater
- Jar test
- Biological bench test
- Sludge moisture analysis
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03
Sampling of Water
We take water samples at your site on our plant visits. Our laboratory staff includes a laboratory sampler.
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04
Pick up of Samples
We pick up your water samples for testing. Ask for a pick-up when you request a quotation.
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05
Delivery Schedule of Test Results
Message us for the delivery schedule of your test results.
06
MER Test Kits & Replenishments
MER Water Test Kits come with complete reagents, apparatus and an instruction manual.
Standardized replenishment and calibration reagents are available to AQUACARE treatment program customers.
Water treatment programs
| Kit | pH | Alkalinity | Total hardness |
|---|---|---|---|
| MER Primary Boiler Water Test Kit | Yes | Yes | Yes |
| MER Primary Cooling and Chilled Water Test Kit | Yes | Yes | Yes |
| MER Primary Hot Water Test Kit | Yes | Yes | Yes |
| MER Water Test Kit for TSE | Yes | Yes | Yes |
- MER Primary Boiler Water Test Kit pH, Alkalinity, Total hardness
- MER Primary Cooling and Chilled Water Test Kit pH, Alkalinity, Total hardness
- MER Primary Hot Water Test Kit pH, Alkalinity, Total hardness
- MER Water Test Kit for TSE pH, Alkalinity, Total hardness
Raw and pure water
| Kit | pH | Total hardness | Alkalinity |
|---|---|---|---|
| MER Primary Raw Water Test Kit | Yes | Yes | Yes |
| MER Primary Pure Water Test Kit | Yes | Yes | Yes |
| MER Pure Water Test Kit | No | Yes | No |
| MER Water Softener Hardness Test Kit | No | Yes | No |
| MER Hardness Test Kit | No | Yes | No |
| MER pH and Hardness Test Kit | Yes | Yes | No |
| MER Pure Water Hardness Test Kit | No | Yes | No |
- MER Primary Raw Water Test Kit pH, Total hardness, Alkalinity
- MER Primary Pure Water Test Kit pH, Total hardness, Alkalinity
- MER Pure Water Test Kit Total hardness
- MER Water Softener Hardness Test Kit Total hardness
- MER Hardness Test Kit Total hardness
- MER pH and Hardness Test Kit pH, Total hardness
- MER Pure Water Hardness Test Kit Total hardness
Chlorinated water
| Kit | pH | Residual chlorine | Alkalinity | Total hardness | Acid demand |
|---|---|---|---|---|---|
| MER Primary Chlorination Test Kit | Yes | Yes | No | No | No |
| MER Midget Primary Chlorination Test Kit | Yes | Yes | No | No | No |
| MER Chlorination Test Kit | No | Yes | No | No | No |
| MER Midget Chlorination Test Kit | No | Yes | No | No | No |
| MER Combination Chlorination Test Kit | Yes | Yes | Yes | No | No |
| MER Industrial Chlorination Test Kit | Yes | Yes | Yes | Yes | Yes |
- MER Primary Chlorination Test Kit pH, Residual chlorine
- MER Midget Primary Chlorination Test Kit pH, Residual chlorine
- MER Chlorination Test Kit Residual chlorine
- MER Midget Chlorination Test Kit Residual chlorine
- MER Combination Chlorination Test Kit pH, Alkalinity, Residual chlorine
- MER Industrial Chlorination Test Kit pH, Alkalinity, Total hardness, Acid demand, Residual chlorine
Clear to slightly turbid water (raw and industrial)
Clear to slightly turbid water (raw and industrial)
| Kit | pH | Dissolved iron | Sulfate | Sulfite | Chloride | Alkalinity | Total hardness | Dissolved silica | Dissolved oxygen |
|---|---|---|---|---|---|---|---|---|---|
| MER pH Test Kit, Medium Range | 6.0 to 8.0 | No | No | No | No | No | No | No | No |
| MER pH Test Kit, Long Range | 2.0 to 11.0 | No | No | No | No | No | No | No | No |
| MER Iron Test Kit (Soluble) | No | Yes | No | No | No | No | No | No | No |
| MER Sulfate Drop Test Kit | No | No | Yes | No | No | No | No | No | No |
| MER Sulfite Drop Test Kit | No | No | No | Yes | No | No | No | No | No |
| MER Chloride Test Kit | No | No | No | No | Yes | No | No | No | No |
| MER Alkalinity Test Kit | No | No | No | No | No | Yes | No | No | No |
| MER Hardness Test Kit | No | No | No | No | No | No | Yes | No | No |
| MER pH and Hardness Test Kit | Yes | No | No | No | No | No | Yes | No | No |
| MER Primary Raw Water Test Kit | Yes | No | No | No | No | Yes | Yes | No | No |
| MER Dissolved Silica Test Kit (Qualitative) | No | No | No | No | No | No | No | Yes | No |
| MER Dissolved Oxygen Test Kit | No | No | No | No | No | No | No | No | Yes |
- MER pH Test Kit, Medium Range pH 6.0 to 8.0
- MER pH Test Kit, Long Range pH 2.0 to 11.0
- MER Iron Test Kit (Soluble) Dissolved iron
- MER Sulfate Drop Test Kit Sulfate
- MER Sulfite Drop Test Kit Sulfite
- MER Chloride Test Kit Chloride
- MER Alkalinity Test Kit Alkalinity
- MER Hardness Test Kit Total hardness
- MER pH and Hardness Test Kit pH, Total hardness
- MER Primary Raw Water Test Kit pH, Alkalinity, Total hardness
- MER Dissolved Silica Test Kit (Qualitative) Dissolved silica
- MER Dissolved Oxygen Test Kit Dissolved oxygen
Wastewater
| Kit | COD | pH | Settleable solids | Jar test | Dissolved oxygen | Residual disinfectant |
|---|---|---|---|---|---|---|
| MER Field COD Laboratory Set | Yes | No | No | No | No | No |
| MER Primary Water Treatment Plant (WTP) Test Kit | No | Yes | Yes | Yes | No | No |
| MER Wastewater Field Laboratory Test Kit | No | Yes | Yes | Yes | Yes | Yes |
| MER Dissolved Oxygen (DO) Test Kit | No | No | No | No | Yes | No |
| MER Wastewater Residual Disinfectant Test Kit | No | No | No | No | No | Yes |
| MER Wastewater Settleable Solids Test Kit | No | No | Yes | No | No | No |
| MER Economy Primary Wastewater Treatment Plant Test Kit | No | Yes | Yes | No | No | No |
- MER Field COD Laboratory Set COD
- MER Primary Water Treatment Plant (WTP) Test Kit pH, Settleable solids, Jar test
- MER Wastewater Field Laboratory Test Kit pH, Settleable solids, Jar test, Dissolved oxygen, Residual disinfectant
- MER Dissolved Oxygen (DO) Test Kit Dissolved oxygen
- MER Wastewater Residual Disinfectant Test Kit Residual disinfectant
- MER Wastewater Settleable Solids Test Kit Settleable solids
- MER Economy Primary Wastewater Treatment Plant Test Kit pH, Settleable solids
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Water Test Meters (pH, Conductivity and TDS)
MER test meters, with calibration solutions.
- pH Meter pH
- pH Checker pH
- Conductivity Checker Conductivity
- TDS and Conductivity Checker TDS and conductivity
- Myron TDS Meter TDS
- TDS Checker TDS
- Chlorine Meter Free and total chlorine
- Salinity Meter Sodium chloride
- DO Meter Dissolved oxygen
- COD Reactor COD
08
Jar Testing
Wastewater conditioning: a simulation of chemical treatment.
Two of our wastewater kits include a jar test: the MER Primary Water Treatment Plant (WTP) Test Kit and the MER Wastewater Field Laboratory Test Kit.
09
Bioaugmentation Bench Testing
Wastewater conditioning: a simulation of biological augmentation.
Run on request, as the biological bench test on our list of other tests.
Need your water tested?
- Phone and mobile
- (02) 8681-8459 ยท 0922-899-0248
- info@merchemical.com.ph
- Office, laboratory and plant
-
64 Major Dizon St., Industrial Valley Complex,
Marikina City, 1802 Metro Manila - Hours
- Monday to Friday, 8:00am to 5:00pm