VOC Sampling System

Volatile Organic Sampling System

VOC Sampling made easy for stack emissions

Volatile Organic Sampling System (VOSS) comprising an operating panel and a VOC sampling train facilitates sampling for volatile organic compounds from an industrial stack.

Available Model : PEM - VOSS 1

The Volatile Organic Sampling System has been designed for sampling Volatile Organic Compounds from stack emission at low flow rate as per US EPA Sampling procedure described in Method 0031. The samples are later desorbed using thermal desorption (5041A) and analyzed by GC/MS (Method 8260B).

Applications :

Stack emission monitoring for VOCs
Compliance monitoring services
ISO 9001,14001,180001 Audit Compliance
Factory Act Compliance
Common industries for VOC monitoring are Chemical, Paint, solid waste incinerators etc.

Physical Design Highlights

The sampling system consists of a heated glass lined sampling probe, heated Teflon sampling tube, VOC Sampling train and VOC Sampling measurement module complete with necessary accessories. The material of construction in contact with the sample gas is only glass & Teflon. The sampling train consists of condensers, glass sampling tubes for Tenax / Tenax / Anasorb 747, Condensate Tube & Silica Gel Adsorber.

Salient Features :

Complies with the requirements of method 0031 of US EPA.
All parts in contact with the sample gas made only of Glass / PTFE
Electronic temperature control.
Easy to set up and simple to operate.

Detailed Technical Specifications

Heated Glass-lined probe and Heated Sampling Tube

Heated Device→ Specification↓	Heated Glass Lined Probe	Heated Sampling Tube
Length	100 cm	125 cm
Internal Tube	Borosil Glass with ¼” OD end tube	¼” OD Teflon
Outer Casing	38 mm OD Aluminum	Insulated Heat-shrinkable Teflon Sleeve
Heating Element	Electrical Resistive Heating
Temperature Sensor	K type Thermocouple
Heating Temperature Range	50 ^oC to 180 ^oC
Temperature Control Type	2 Nos. Electronic – proportional type fitted in the control module
Dimensions & Weight	4 Cm dia x 107 Cm Wt.- 1 Kg	2 Cm dia x 125 Cm Wt.- 1 Kg

Sample Collection Module

Stop Cocks	2 Nos of Glass body with PTFE Plug
1^st Condenser for Cooling	Double walled water cooled Coiled Glass body with Temperature Sensor & Thermal insulation
2^nd condenser for cooling
1^st Tenax TA Tube	Threaded Glass tubes with PTFE Cap
2 ^nd Tenax TA Tube
Anasorb Tube
Condenser bottle	50 ml capacity Glass bottle
Silica Gel Bottle	20 cm long Threaded Glass body with PTFE Cap
Connections / Unions / Tubing	PTFE
Charcoal Trap	Glass Tube for filling with charcoal
Water Circulating Pump	Submersible type fitted inside for 230 V AC Operation.
Power	230 V AC from Control Module
Cabinet	ABS Suitcase with PE Foam insulated Reservoir for ice/cold water
Dimensions & Weight	58 x 47 x 20 Cms. Wt. - 7 Kg.

Sample Control Module

Temperature Controller	2 numbers for Heated glass lined Probe and Heated sampling tube. Display - digital LED. Range-50 to 180 ^oC. Type-Proportional
Gas Flow Meter Range	0.10 to 2.00 LPM with fine control valve
Gas Meter Volume Range	0.10 to 999,9 Liters resettable with a key
Meter Vacuum Gauge Range	0-760 mm Hg
Electronic Unit Parameters	Temperature readings of three sensors selected through a switch and Timer functions.
1^st Condenser Temperature Range	0 to 60^oC
2^nd Condenser Temperature Range	0 to 60^oC
Gas Meter Temperature Range	0 to 60^oC
Timer Function	Stop Watch / Down Counting Programmable Timer
Time Range	0 to 9 Hours 59 Minutes 59 Seconds
Control Keys	Start , Stop, Reset
Control Switches	On / Off type. 2 nos. for sampling pump and sample collection module power
Sampling Pump	Diaphragm Type with PTFE coating and film Capacity :10 LPM
Power Supply	230 V AC
Dimensions & Weight	32 x 32 x 20 Cms. 8 Kg.

Accessories :

Coiled Glass Condenser
Threaded Glass tube with threaded PTFE union for Tenax / Anasorb /Silica Gel
Closing Caps of 2 types for both ends of threaded glass tube

VOC Sampling System