AQUASOL DIGITAL APCODR3 COD Vial Refill Set | 0–15000 mg/L PPM | 100 Tests | High Range COD Reagent

AQUASOL DIGITAL APCODR3 is a high-range COD (Chemical Oxygen Demand) Vial Refill Set designed for COD testing from 0 to 15,000 mg/L (ppm). The 100-test refill pack is intended for preparing standard 16 mm COD vials using a closed micro-reflux digestion method. It is suitable for laboratory, industrial wastewater, effluent and process-water analysis.

Key Features

• Brand: AQUASOL DIGITAL
• Model: APCODR3
• Product Type: COD Vial Refill Set
• COD Range: 0–15,000 mg/L (PPM)
• Pack Capacity: 100 Test Refill Set
• Vial Size: Standard 16 mm × 100 mm
• Method: Closed micro-reflux COD measurement
• Suitable for high-range COD analysis
• Designed for easy preparation of COD vials
• Compatible with COD meters/analyzers from leading brands
• Suitable for on-site and laboratory testing
• Designed according to recognized COD testing methods
• Economical alternative to purchasing ready-to-use COD vials

Technical Specifications

The GTIN and 100-test specification are listed on the manufacturer's product page, while the current technical datasheet specifies a 36-month shelf life.

Reagents & Accessories Included

According to the manufacturer's technical datasheet, the APCODR3 refill set contains:

• CODC2 – 1 No.
• CODS3 – 100 mL – 4 Nos.
• CODS3 – 25 mL – 1 No.
• CODM1 – 1 No.
• 1 mL Plastic Syringe – 1 No.
• Comparator Tube with Mark – 1 No.
• Spoon – 1 No.
• Procedure Label – 1 No.

Important: APCODR3 is a reagent refill pack, not a pack of 25 ready-to-use COD vials. AQUASOL's separate APCODV3 product is the ready-to-use 0–15,000 ppm COD vial pack.

COD Testing Range

APCODR3 — High Range:

0–15,000 mg/L (PPM) COD

This is the highest range in AQUASOL DIGITAL's APCOD COD vial/refill series:

Testing Principle

The water sample is oxidized using a hot sulfuric-acid solution containing potassium dichromate, with silver sulfate as catalyst. Chloride interference is masked using mercury sulfate. The remaining dichromate is determined photometrically, with the final result expressed as mg/L COD (mg/L O₂).

Vial Preparation

The manufacturer's procedure uses a clean 16 mm × 100 mm COD vial.

The documented preparation involves:

1. Add 0.25 mL CODC2 using the supplied syringe.
2. Add CODS3 reagent to the specified mark and transfer it into the vial.
3. Add ½ spoon of CODM1 powder.
4. Close the vial and swirl for approximately 15 seconds.
5. The prepared vial is then ready for 0–15,000 ppm COD testing.

COD Testing Procedure

The manufacturer's documented procedure uses:

• A blank vial prepared with COD-free demineralized water.
• A sample vial containing the water sample.
• Tight closure and mixing.
• Digestion at 150°C for 2 hours.
• Cooling naturally for approximately 15–20 minutes.
• Measurement using a compatible COD meter/analyzer.

Applications

APCODR3 is suitable for COD testing in:

• Industrial wastewater
• Effluent water
• Process water
• Wastewater treatment plants
• ETP/STP applications
• Cooling-system water
• Chiller water
• Boiler water
• Surface water
• Groundwater
• Well water
• Drinking water
• Mineral water
• Swimming pool water
• Aquaculture
• Environmental monitoring
• Industrial laboratories
• Research laboratories

Standards / Method

The AQUASOL documentation states that its COD vial/refill system is based on closed micro-reflux COD measurement according to ISO 15705:2002 and helps meet USEPA standards. The APCODR3 technical datasheet also references IS 3025 (Part 58):2006.

Interferences

The manufacturer identifies the following as potential interfering substances:

• Straight-chain aliphatic compounds
• Aromatic hydrocarbons
• Fatty acids
• Chlorides
• Nitrites
• Iron

Storage

Keep the reagents closed and stored at ambient temperature according to the manufacturer's instructions. Under the specified storage conditions, the documented shelf life is 36 months.

What's Included

1 × AQUASOL DIGITAL APCODR3 COD Vial Refill Set — 100 Tests

Includes the specified CODC2, CODS3 and CODM1 reagents, syringe, comparator tube, spoon and procedure label.

Suitable For

ETP Plants | STP Plants | Industrial Wastewater | Environmental Laboratories | Water Treatment Plants | Food & Beverage Industries | Chemical Industries | Pharmaceutical Industries | Textile Industries | Process Water | Research Laboratories

Product Highlights

0–15,000 mg/L COD Range
100 Tests
High-Range COD Refill Pack
Standard 16 mm COD Vial Compatible
Closed Micro-Reflux Method
Suitable for Water & Wastewater Testing
AQUASOL DIGITAL APCODR3