Andersen Reference Ambient Air Sampler (RAASTM)

Close up view of the RAASTM

Teflon Filter Empty Nylon Filter

Channel

Air

Flo

w

Quartz Filter

MgO

Den

uder

1 32 4

Pump

Manifolds

Size SelectiveCyclone

7.3

L/m

in.

7.3

L/m

in.

16

.7

L/

mi

n.

16

.7

L

/m

in

.

Total, Organic, Elemental, Carbon

Mass, Elements Sulfate, Nitrate, Ammonium, Sodium,Potassium

Size SelectiveCyclone

Mass Flow Control

ElectronicFlow Sensor

INLET

SamplerHousing

Schematic diagram of the RAASTM sampling system

Replicate or other

IMPROVE Sampling System and Module

Size Selective Cyclone

PTFE

Pump

Module 1

Size Selective Cyclone

Quartz

Pump

Module 3

Size Selective Cyclone

Nylon

Pump

Module 2

Na

2 C

O 3

Mass,Elements

Sulfate, Nitrate, Ammonium, Sodium,

Potassium

Total, Organic,Elemental, Carbonate

Carbon

Air

Flo

w

22

.7

Lit

ers/

min

.Inlet Stack

Critical Orifice

Critical Orifice

Critical Orifice

Inlet Stack Inlet Stack

Schematic diagram of the IMPROVE sampler modules

SamplerHousing

MET ONE Spiral Aerosol Speciation Sampler (SASSTM)

Solar shield with one samplingcassetted mounted

Vacuum pump and flow control module

MET ONE SASSTM

MET ONE SASSTM

Sampling cassette with sharp cut cyclone (SCC)

Sampler control module

Empty

Teflon Filter Nylon Filter

Empty

Quartz FilterEmpty

Empty

EmptyEmpty

Teflon Filter

Empty

CYCLONE

Empty

CYCLONE

CYCLONE

Flow

Sen

sors

Mass , Elements Total, Organic,

Elemental, Carbon

Duplicate orOther

EmptyMgO CoatedAl Honeycomb

Mass Flow Control

6.7

L/m

in.

1 432 5 Channel

Pump

6.7

L/m

in.

6.7

L/m

in.

6.7

L/m

in.

6.7

L/m

in.

Flow

Sen

sors

Flow

Sen

sors

Flow

Sen

sors

Flow

Sen

sors

DenuderEmpty

Sulfate, Nitrate,Ammonium, Sodium,Potassium

Air F

low

CYCLONE CYCLONE

Schematic diagram of the SASSTM sampling system

Duplicate orOther

URG Mass Aerosol Speciation Sampler (MASS)

MASS 400 (on right) and MASS 450 (on left)

Close up view of the MASS 450

Close up view of the MASS 4001

Size selectiveInlet

WINSImpactor

Nylon Filter

Mass, Elements, Sulfate,Nitrate, Ammonium, Sodium,and Potassium

Volatilized Nitrate

Air

Flo

w

MgO Denuder

Teflon Filter

Size selectiveInlet

Quartz Filter

16.7

Lite

rs/m

in.

WINSImpactor

Pump

Pump

Total, Organic, Elemental Carbon

MASS 400 MASS 450

Dry Gas Meter

Dry Gas Meter

SamplerHousing

Schematic diagram of the MASS 400 and MASS 450 sampling system