An Orsat gas analyzer is a piece of laboratory equipment used to analyze a gas sample (typically fossil fuel flue gas) for its oxygen , carbon monoxide and carbon dioxide content. Although largely replaced by instrumental techniques, the Orsat remains a reliable method of measurement and is relatively simple to use.

1. Orsat Gas
Analysis Apparatus
CONSTRUCTION:
The apparatus consists essentially of a calibrated water-jacketed gas burette connected
by glass capillary tubing to two or three absorption pipettes containing chemical
solutions that absorb the gasses it is required to measure. For safety and portability, the
apparatus is usually encased in a wooden box.
THE ABSORBENTS ARE:
Potassium Hydroxide (Caustic Potash)
Alkaline pyrogallol
ammoniacal Cuprous chloride
The base of the gas burette is connected to a leveling bottle to enable readings to be
taken at constant pressure and to transfer the gas to and from the absorption media.
The burette contains slightly acidulated water with a trace of chemical indicator
(typically methyl orange) for coloration.
WORKING PRINCIPLE :
The Orsat apparatus works using a very simple method. To find the volume of a
particular gas within the sample a fixed volume of the sampled gas is passed through a
specific solution which absorbs only the required gas. The remaining volume of the gas
can then be re- measured and compared with the original volume to find the proportion
of a specific gas within the sample.
ORSAT
GAS
ANALYSIS
APPARATUS
Contact : (+91) - 932362 7990 / 9594147146 , Email : globetrekengineering@gmail.com
Web : www.globetrekengineering.com
GlobeTrek Engineering Corporation is a
Trusted Supplier & Exporter of Orsat
Gas Analysis Apparatus .
INTRODUCTION :
An Orsat gas analyzer is a piece
of laboratory equipment used to
analyze a gas sample (typically fossil
fuel flue gas) for its oxygen , carbon
monoxide and carbon dioxide content.
Although largely replaced by
instrumental techniques, the Orsat
remains a reliable method of
measurement and is relatively simple to
use.

2. The sampled gas is passed through a sequence of solutions each removing one of the
gases and the remaining volume calculated afterwards. A solution of caustic potash is
used to absorb the carbon dioxide, a mixture of pyrogallic acid, caustic potash and
water is used to absorb the oxygen, and to remove the carbon monoxide a solution of
cuprous chloride is used.
SPECIFICATION :
Orsat Gas Analysis Apparatus – 3 Test Complete in wooden cabinet with sliding doors.
Three absorption pipettes of two compartment type
100 ml Gas Burette with outer jacket
Three Test Manifold with stopcocks
Aspirator bottle, for the analysis of CO, O2, CO2 particularly in fuel and furnace gases
Calcium chloride tube and rubber below
Orsat Gas Analysis Apparatus – 4 Test Complete in wooden cabinet with sliding doors.
Four absorption pipettes of two compartment type
100 ml Gas Burette with outer jacket
Four Test Manifold with stopcocks
Aspirator bottle, for the analysis of CO, O2, CO2 particularly in fuel and furnace gases
Calcium chloride tube and rubber below
Additions Spares Parts for Orsat Apparatus
100 ml. Gas Burette with jacket
Jacket for 100 ml gas burette
3-Test Manifold (Orsat bridge)
4-Test manifold (Orsat bridge)
Absorption Pipette fitted with glass tubes
Leveling bottle 250 ml.
Ready Made Set of Chemicals for Analysis for 25-30 test @ extra Cost
Includes : Ammonia Solution , Cuprous chloride ,Pyrogallol , Calcium , Chloride , methyl
orange , potassium hydroxide pellete.
ORSAT
GAS
ANALYSIS
APPARATUS
Contact : (+91) - 932362 7990 / 9594147146 , Email : globetrekengineering@gmail.com
Web : www.globetrekengineering.com