Everything You Need to Know About COD Test Tubes

Chemical Oxygen Demand (COD) test tubes are essential tools for water quality analysis, widely used in municipal, industrial, and environmental testing. These specialized tubes are designed to withstand high temperatures and harsh chemical conditions during the COD digestion process. Let’s dive into the key features and best practices for using COD test tubes.

With the Aijiren COD tube test, each user can easily perform highly sensitive and accurate water detection. The time required for the measurement process is greatly shortened, especially for standard analysis and series measurement, while greatly reducing the workload. The COD test tube contains a precise dose of reagent. Therefore, excessive chemical stocks are avoided and work safety is improved.

When using COD test tubes, we usually inject the sample to be tested into the test tube and shake the tube vigorously to suspend all the sediment. Remove the cap of the COD test tube and add 2 mL of sample using a pipette.

The COD Test Tube produced by Aijiren is often used for chemical oxygen demand (COD) testing, and COD testing uses a specific oxidant to oxidize the substances (including organics) in the water sample. As the temperature and time decrease, the test requires This method is often widely used as a measure of organic pollutants.

Aijiren test tubes with rims are made from borosilicate glass 3.3 making them excellent for general laboratory use.
Pack size: Pack of 100
Size: 16x125mm
Tube Diameter:16mm
Tube Length:125mm
Wall Thickness :1.2mm

Chemical Oxygen Demand (COD) testing is a crucial method for assessing water quality, particularly in wastewater treatment and environmental monitoring. COD test tubes simplify the process, but proper usage is essential for obtaining accurate results

Aijiren clear water digestion colorimetric test tube has a 16mm threaded opening. There are various specifications, 9ml, 10ml, 12ml, 15ml. The default is 25 pcs/foam box. If you need 100 pcs/carton, please contact the product manager.

The default is 25 pcs/foam box. If you need 100 pcs/carton, please contact the product manager.

16mm glass COD test tube/ COD digestion test tube

Fast delivery, all goods can be shipped in 3-7days. Large qty products are in stock for customers. The default is 25 pcs/foam box. If you need 100 pcs/carton, please contact the product manager.

Aijiren COD Test Tube is made of borosilicate glass, which can reduce pH changes and pollutants that may be leached from soda lime glass.  The glass digestion test tube can be used for analysis at temperatures higher than 130 degrees Celsius.  It is manufactured from laboratory storage for a variety of general purposes and can hold almost anything. The COD Test Tube is small in size and light in weight. It can be tested without any other laboratory equipment and technicians; it only takes 3-5 minutes to test a sample, without additional materials or instruments and is easy to operate. These test tubes are SGC certified. These tubes can only be used once, so they cannot be reused. With the Aijiren COD tube test, each user can easily perform highly sensitive and accurate water detection.

Wholesales Chemical Oxygen Demand Tubes with a cap from China Aijiren Tech.Aijiren is the leading supplier of Chemical Oxygen Demand Tubes from China.

COD testing is a good better indicator of organic pollutants in industrial wastewater containing cyanides and heavy metals. COD testing affords rapid response to changing conditions before critical.

Aijiren COD Test Tube is made of borosilicate glass, which can reduce pH changes and pollutants that may be leached from soda lime glass. The glass digestion test tube can be used for analysis at temperatures higher than 130 degrees Celsius. It is manufactured from laboratory storage for a variety of general purposes and can hold almost anything. The SEPTA is made of PTFE silicon rubber gasket, which has a strong sealing performance and can resist various chemical corrosion. Used for municipal wastewater testing; industrial wastewater and process control testing; and environmental water testing. The used COD Tubetests contain strong sulfuric acid and other chemicals, so reagents must be handled carefully. The contents of the pipe should be disposed of in accordance with the requirements of local authorities.

size: 16*100mm/16*90mm/16*125mm/16*150mm

ND24 TOC Screw Neck Vials(Clear/Amber).Available with black or white screw caps with 24mm thread
Disposable: Disposable
Certification: CE, ISO
Material: Glass
Bottle Top: Screw Neck
Production Capacity: 50000000PCS/Week
Specification: 100pcs/pack
Trademark: Aijiren

The COD Test Tube produced by Aijiren is often used for water quality testing. In order to adapt to different models and brands of machines, Aijiren has launched a multi-size COD Test Tube. The caliber is a uniform 16mm, but the sizes are 9ml, 10ml, 12ml and 15ml. The 9ml COD Test Tube has a flat bottom, the 10ml COD Test Tube has a flat bottom and a round bottom, and the 12ml and 15ml COD Test Tubes have a round bottom.

Aijiren COD Test Tube is made of borosilicate glass, which can reduce pH changes and pollutants that may be leached from soda lime glass.  The glass digestion test tube can be used for analysis at temperatures higher than 130 degrees Celsius.  It is manufactured from laboratory storage for a variety of general purposes and can hold almost anything. The COD Test Tube is small in size and light in weight. The used COD Tubetests contain strong sulfuric acid and other chemicals, so reagents must be handled carefully. 

Usage: Laboratory Analysis
Logo: Customized Accepted
Trademark: Aijiren
Origin: China
OEM: Available
Sample: Provided Freely

Aijiren is the leading supplier of chromatography consumables, can offer hplc vials,hplc syringe filter, EPA VOA vials, and some other test tubes.
Any requirement for chromatography consumables, please contact us.

Aijiren COD test tubes are made of borosilicate glass, which reduces pH changes and possible leaching of contaminants from soda-lime glass. The septa uses a PTFE silicone rubber gasket, which has a strong sealing performance and can resist various chemical corrosion. The COD test tube is small in size, light in weight, and cannot be reused.

2mL of water or wastewater sample is added to a Chemical Oxygen Demand Tubes containing the digestion reagent and a catalyst. Aijiren is the leading supplier of Chemical Oxygen Demand Tubes from China.

Aijiren COD Test Tube is made of borosilicate glass, which can reduce pH changes and pollutants that may be leached from soda lime glass. The glass digestion test tube can be used for analysis at temperatures higher than 130 degrees Celsius. It is manufactured from laboratory storage for a variety of general purposes and can hold almost anything. The gasket is made of a PTFE silicon rubber gasket, which has strong sealing performance and can resist various chemical corrosion. The  COD Test Tube is small in size and light in weight. It can be tested without any other laboratory equipment and technicians; it only takes 3-5 minutes to test a sample, without additional materials or instruments and is easy to operate.

ND24 TOC Screw Neck Vials(Clear/Amber).Available with black or white screw caps with 24mm thread
Disposable: Disposable
Certification: CE, ISO
Material: Glass
Bottle Top: Screw Neck
Production Capacity: 50000000PCS/Week
Specification: 100pcs/pack
Trademark: Aijiren

Aijiren COD test tubes are made of borosilicate glass, which reduces pH changes and possible leaching of contaminants from soda-lime glass. The septa uses a PTFE silicone rubber gasket, which has a strong sealing performance and can resist various chemical corrosion. The COD test tube is small in size, light in weight, and cannot be reused.

High range, chemical oxygen demand determinations: COD Digestion Vials, High Range Chemical Oxygen Demand (COD): US EPA approved for wastewater analysis using Hach Method 8000 Method: Reactor Digestion Range: 20 -1500 mg/L COD 150/test Contains mercury. 150/test Contains mercury.

Wholesales Chemical Oxygen Demand Tubes with a cap from China Aijiren Tech.Aijiren is the leading supplier of Chemical Oxygen Demand Tubes from China.

Chemical Oxygen Demand (COD) test tubes are essential tools for water quality analysis, widely used in municipal, industrial, and environmental testing. These specialized tubes are designed to withstand high temperatures and harsh chemical conditions during the COD digestion process. Let’s dive into the key features and best practices for using COD test tubes.

size: 16*100mm/16*90mm/16*125mm/16*150mm

16mm glass COD test tube/ COD digestion test tube

With the Aijiren COD tube test, each user can easily perform highly sensitive and accurate water detection. The time required for the measurement process is greatly shortened, especially for standard analysis and series measurement, while greatly reducing the workload. The COD test tube contains a precise dose of reagent. Therefore, excessive chemical stocks are avoided and work safety is improved.

The default is 25 pcs/foam box. If you need 100 pcs/carton, please contact the product manager.

Fast delivery, all goods can be shipped in 3-7days. Large qty products are in stock for customers. The default is 25 pcs/foam box. If you need 100 pcs/carton, please contact the product manager.

2mL of water or wastewater sample is added to a Chemical Oxygen Demand Tubes containing the digestion reagent and a catalyst. Aijiren is the leading supplier of Chemical Oxygen Demand Tubes from China.

Aijiren COD Test Tube is made of borosilicate glass, which can reduce pH changes and pollutants that may be leached from soda lime glass. The glass digestion test tube can be used for analysis at temperatures higher than 130 degrees Celsius. It is manufactured from laboratory storage for a variety of general purposes and can hold almost anything. The gasket is made of a PTFE silicon rubber gasket, which has strong sealing performance and can resist various chemical corrosion. The  COD Test Tube is small in size and light in weight. It can be tested without any other laboratory equipment and technicians; it only takes 3-5 minutes to test a sample, without additional materials or instruments and is easy to operate.

Aijiren COD Test Tube is made of borosilicate glass, which can reduce pH changes and pollutants that may be leached from soda lime glass.  The glass digestion test tube can be used for analysis at temperatures higher than 130 degrees Celsius.  It is manufactured from laboratory storage for a variety of general purposes and can hold almost anything. The COD Test Tube is small in size and light in weight. The used COD Tubetests contain strong sulfuric acid and other chemicals, so reagents must be handled carefully. 

Aijiren COD Test Tube is made of borosilicate glass, which can reduce pH changes and pollutants that may be leached from soda lime glass.  The glass digestion test tube can be used for analysis at temperatures higher than 130 degrees Celsius.  It is manufactured from laboratory storage for a variety of general purposes and can hold almost anything. The COD Test Tube is small in size and light in weight. It can be tested without any other laboratory equipment and technicians; it only takes 3-5 minutes to test a sample, without additional materials or instruments and is easy to operate. These test tubes are SGC certified. These tubes can only be used once, so they cannot be reused. With the Aijiren COD tube test, each user can easily perform highly sensitive and accurate water detection.

2ml chromatography vials for HPLC. Aijiren’s 2ml chromatography vials have customized services such as the color of the pp cap, whether the vial has tick marks and label areas, and whether the customer’s brand logo is printed.

Aijiren test tubes with rims are made from borosilicate glass 3.3 making them excellent for general laboratory use.
Pack size: Pack of 100
Size: 16x125mm
Tube Diameter:16mm
Tube Length:125mm
Wall Thickness :1.2mm

Usage: Laboratory Analysis
Logo: Customized Accepted
Trademark: Aijiren
Origin: China
OEM: Available
Sample: Provided Freely

COD Test Tube is available in two packages of 25 pcs/box and 100 pcs/box. Customers can purchase according to their own demand. Generally speaking, we recommend purchasing in boxes to ensure the convenience of delivery. In addition, Aijiren provides customized services, you can customize the company’s logo on Tube.

The Chemical Oxygen Demand Tubes supplier region is the second-largest market for chemical oxygen generators.Aijiren is the leading supplier of Chemical Oxygen Demand Tubes from China.

Aijiren is the largest chromatography consumable manufacturer in south of China. There are HPLC vial, GC vial, Septum and closures, EPA vial, TOC vial, Test tube, Reagent bottle and Syringe filter in Aijiren shop. You can get all the consumables in wholesale price. Please choose your needed in precise catalog.

The COD Test Tube produced by Aijiren is often used for water quality testing. In order to adapt to different models and brands of machines, Aijiren has launched a multi-size COD Test Tube. The caliber is a uniform 16mm, but the sizes are 9ml, 10ml, 12ml and 15ml. The 9ml COD Test Tube has a flat bottom, the 10ml COD Test Tube has a flat bottom and a round bottom, and the 12ml and 15ml COD Test Tubes have a round bottom.

Zhejiang Aijiren Technology, Inc. is a global supplier of life-science, chemistry, laboratory consumables, etc. Our major products are high performance liquid chromatography & gas chromatography consumables such as Chromatography Autosampler Vials with closures, inserts, crimper and syringe filters, etc; Water analysis consumables such as COD test tube.

When using COD test tubes, we usually inject the sample to be tested into the test tube and shake the tube vigorously to suspend all the sediment. Remove the cap of the COD test tube and add 2 mL of sample using a pipette.

Aijiren COD Test Tube is made of borosilicate glass, which can reduce pH changes and pollutants that may be leached from soda lime glass. The glass digestion test tube can be used for analysis at temperatures higher than 130 degrees Celsius. It is manufactured from laboratory storage for a variety of general purposes and can hold almost anything. The SEPTA is made of PTFE silicon rubber gasket, which has a strong sealing performance and can resist various chemical corrosion. Used for municipal wastewater testing; industrial wastewater and process control testing; and environmental water testing. The used COD Tubetests contain strong sulfuric acid and other chemicals, so reagents must be handled carefully. The contents of the pipe should be disposed of in accordance with the requirements of local authorities.

The COD Test Tube produced by Aijiren is often used for chemical oxygen demand (COD) testing, and COD testing uses a specific oxidant to oxidize the substances (including organics) in the water sample. As the temperature and time decrease, the test requires This method is often widely used as a measure of organic pollutants.

COD Reagent Vials found in: COD Tube Tests, COD Tube TestsOD Tube Tests, Digital Block 3 Heater, Multi-Range COD Reagent Systems, ECO 6 Thermoreactors for COD.So any requirements about COD Reagent Vials, please contact Aijiren.

Chemical Oxygen Demand (COD) testing is a crucial method for assessing water quality, particularly in wastewater treatment and environmental monitoring. COD test tubes simplify the process, but proper usage is essential for obtaining accurate results

COD testing is a good better indicator of organic pollutants in industrial wastewater containing cyanides and heavy metals. COD testing affords rapid response to changing conditions before critical.

Aijiren is the leading supplier of chromatography consumables, can offer hplc vials,hplc syringe filter, EPA VOA vials, and some other test tubes.
Any requirement for chromatography consumables, please contact us.

Aijiren clear water digestion colorimetric test tube has a 16mm threaded opening. There are various specifications, 9ml, 10ml, 12ml, 15ml. The default is 25 pcs/foam box. If you need 100 pcs/carton, please contact the product manager.

COD testing is a good better indicator of organic pollutants in industrial wastewater containing cyanides and heavy metals. For any requirements about COD Tubes, please tell me.
Product name: COD Tubes without Logo
Size: 16*100mm
Application: Water analysis
Material: Borosilicate 3.3 Glass
Melting point: -7℃
Certificate: ISO9001

PTFE/Silicone cap septa
Quantity 100 per unit
Formerly TOC-40-100
1.ND24 EPA Screw Neck Vials(Clear/Amber).
2. Available with black or white screw caps with 24mm thread.
3. Available as closed top screw seals or with a center hole.
4. Nature PTFE/nature Silicone septa 22*3mm
5. Environmental analysis
Disposable: Disposable