BOD Bottle 300ml

Quick Answer

This 300ml BOD bottle is a glass bottle with a ground glass stopper, designed to hold a water sample completely full and airtight while it incubates for a biochemical oxygen demand test.

Description

A BOD bottle is built specifically for biochemical oxygen demand testing, a standard water-quality measurement that tracks how much dissolved oxygen microorganisms in a water or wastewater sample consume over an incubation period at a controlled temperature. The bottle’s flared neck and matching ground glass stopper let it be filled completely to the brim and sealed without trapping air, which is essential because any air bubble in the bottle would introduce oxygen the test is not meant to measure.

At a 300ml capacity, this bottle matches the standard sample size used in most BOD testing protocols in environmental, municipal, and teaching laboratories. Its glass construction keeps the sample isolated from outside contamination during the incubation period, which can run for several days depending on the specific test method being followed.

Specifications

Attribute	Detail
Material	Glass
Capacity	300ml
Stopper	Ground glass stopper
Typical Use	Biochemical oxygen demand (BOD) testing of water samples

Applications

Incubating water or wastewater samples for biochemical oxygen demand analysis
Environmental and public health water-quality testing programmes
Teaching laboratories demonstrating standard BOD test technique
General sample incubation wherever an airtight glass seal is required

Care & Handling

Fill the bottle completely to the neck without air bubbles before sealing, as required by standard BOD technique
Handle the ground glass stopper carefully, as a chip on its ground surface can break the airtight seal
Label each bottle clearly with the sample identification and the date and time it was set up
Store filled bottles at the incubation temperature specified by your BOD test protocol
Clean thoroughly between samples to avoid cross-contamination affecting the oxygen reading

Why Choose LabEquip

This BOD bottle is part of our full lab glassware range, so you can source your complete water-testing kit together. Browse related apparatus in our chemistry lab equipment catalogue, and contact us for bulk institutional orders.

Frequently Asked Questions

What is a BOD bottle used for?

A BOD bottle is used to hold a water or wastewater sample during a biochemical oxygen demand test, which measures how much dissolved oxygen microorganisms in the sample consume over an incubation period.

Why is a 300ml capacity typical for a BOD bottle?

A 300ml capacity matches the standard sample volume used in most established BOD testing protocols, making it compatible with the incubators, racks, and procedures already in use in most water-testing laboratories.

Why must the bottle be filled without air bubbles?

Any trapped air introduces extra oxygen into the sealed sample, which would distort the oxygen consumption reading the BOD test is designed to measure, so the bottle is filled completely to the brim before the stopper is fitted.

What does the ground glass stopper do?

The ground glass stopper creates an airtight seal once the bottle is filled, preventing outside air or contamination from reaching the sample during the incubation period.

How should BOD bottles be labelled and stored during incubation?

Label each bottle with the sample identification and set-up date and time, and store it at the incubation temperature specified by your test protocol until the reading is due.