ExIS presentation @Grimm seminarium 2013-05-30 · PDF fileExIS presentation @Grimm seminarium...

ExIS presentation

@Grimm seminarium 2013-05-30

Peter Ahlvik

Översikt

ExIS och våra partners

Överblick av instrumenttyper och ExIS utbud

Arbetsmiljö (Sverige), lagkrav

Några exempel

2013-05-30 Grimm Seminar 2

ExIS AB Exhaust Instruments Scandinavia

ExIS AB is a Swedish-based

company that offers equipment

for particle measurements and

measurement and consultant

services on the Scandinavian

market


ExIS AB – who are we?

Privately owned independent company located

in Stockholm, Sweden

Distributor of instrument/equipment from:

Control Sistem, Dekati, Ecomesure, Grimm

Aerosol, Matter Engineering, Pegasor and

Topas

Measurements and consultation services

Markets: Sweden/Scandinavia/Nordic countries


Partners and network 1(2) Instrument and equipment suppliers

Control Sistem – CVS (full, mini, micro), driving robot

Dekati Ltd., Finland – Particle instruments & dilution

Ecomesure, France – Distributor, PMP instrument

Grimm Aerosol, Germany – Particle instruments

Matter Aerosol, Switzerland – Dilution and particle instruments

Pegasor – Particle sensor (automotive, stack, air qual.)

Topas, Germany – Aerosol generators, filter testing


http://www.grimm-aerosol.com/index.php

http://www.controlsistem.it/

Instrument overview

To provide some perspective on sizes…

…adapted from Grimm presentation

1 Nanometer 1 Meter


Concentration Range of a Grimm CPC: 0 – 107 Particles / cm3

Typical Concentration of Nanoparticles

Essentially no detection limit (for particles > 5 nm)

But you may have to dilute

Location

Concentration

[Particles / cm3]

Indoor Air (without smokers): 5,000 – 15,000

Indoor Air (with smokers or vacuum cleaner): 15,000 – 80,000

Polluted workplace: 80,000 – 150,000

Exhaust of an Diesel Engine: ~ 1010


Some types of instruments

Gravimetric impactors

SMPS type of instruments (DMA+CPC/FCE)

Electric mobility classification with electrometer detection (EEPS/DMS/FAPES)

Optical particle counters

Electric low pressure impactor (ELPI+)

Charging and electrical detection with very high time resolution (e.g. Pegasor sensor)

Effective surface area (charging)


Time and size resolution for various instrument types

1.E+00

1.E+01

1.E+02

1.E+03

1.E+04

1.E+05

0.01 0.1 1 10 100

Parti

cle

siz

e (n

m)

With

Nanocheck

Gra

vim

etri

c im

pac

tors

SM

PS

in

stru

men

ts

EL

PI+

Ele

ctri

cal

low

pre

ssu

re

imp

acto

r

EE

PS

/DM

S/F

AP

ES

inst

rum

ents

Op

tica

l p

arti

cle

cou

nte

rs

Time resolution (Hz)

Peg

aso

r M

-sen

sor


SMPS instruments

TSI SMPS

Grimm SMPS+C Grimm SMPS+E


Optical particle counters

Grimm OPC

e.g. #1.109

Topas

e.g. LAP321


Impactors – gravimetric and electrical low pressure impactor (ELPI)

Gravimetric impactors

Electrical low pressure impactor


© 2010 Topas GmbH

Hospital validation

A surgery room as a clean room facility

DIN 1946 – 4: German Standard

Ventilation and air conditioning - Part 4:

Ventilation in buildings and rooms of

health care, 12/2008

similar european and international standards

and guidelines (SWKI 99-3, GOST R 52539-2006)

validation of air ventilation systems in hospitals

increased health risks at hospital operations from particulate contaminations

validation of the efficiency of low-turbulence

displacement flow unit installed above the operating table

verification of the particle number which is able to enter the critical protective area

© 2010 Topas GmbH

Hospital validation

A surgery room as a clean room facility

HS-Luftfilterbau GmbH

© 2010 Topas GmbH

Hospital validation

validation measurements according to DIN 1946-4

definition and determination of a protection factor

simulation of external and internal particle penetration

Reference surgery room: 10m², 0,3m/s laminar air flow

particle source particle measurement

© 2010 Topas GmbH

Hospital validation

general requirements

high primary air flow rate

homogeneous distribution to six aerosol ejector positions

reliable particle production rate, monitored continuously by a particle counter

required test equipment

aerosol generator

particle counter

aerosol distribution system

aerosol dilution system for monitoring

particle production rate

validation measurements according to DIN 1946-4

© 2010 Topas GmbH

Hospital validation

atomizer aerosol generator

adjustable particle production rate

designed for mobile use

designed for clean room applications

Aerosol Generator ATM 226

Particle Counter LAP 340


clean room particle counter

PC interface


Air flow rate 0 ... 300 l/h

DEHS mass flow 0 … 2.5 g/h

Particle output > 108 P/cm³

Reservoir for test liquid 80 ml

Maximum counter pressure 0.2 bar

Flow rate 1 cfm / 28,3 lpm

Measuring range 0,3 … 10 µm

Size channels 16

Max. concentration 35 P/cm³

Measuring time 1 s … 99 h

Measuring modes single, continuous

© 2010 Topas GmbH

Hospital validation

Aerosol Distribution and Dilution System ADD 536


homogeneous aerosol distribution

continuous monitoring of the particle production rate


dilution ratio adjustable to the particle counter Default setting: 1:100.000

flow rate particle counter

up to 28,3 l/min

flow rate aerosol generator

up to 5 l/min

filtered air flow

> 1 0 0 l/min

aerosol outlet 6 Stück, Ø 65mm

tubing to the outlet

6 x 4m

power supply 230 V AC , 100 W

dimensions ( B x T x H )

250 x 340 x 330 mm

weight 8,5 kg

© 2010 Topas GmbH

Hospital validation

placing and connecting the instruments

placing the aerosol outlets

starting up the instruments

setting up the reference particle production

rate at the aerosol generator

particle measurement at 3 positions

within the protective area

determination of the protection factor

test procedure

(1) aerosol generator

(2) aerosol distribution and dilution system

(3) aerosol outlet

(4) particle measurement

© Dekati Ltd.

Impactor

• Aerodynamic diameter

• Gas velocity and dimensions different in different stages

Collection plate

Flow

Nozzle Diameter Dj

Jet to plate distance

Jet velocity U

© Dekati Ltd.

Cascade Impactor - example

Stage 3: >10 µm

Stage 1: >1.0 µm

Stage 2: >2.5 µm

Collection substrates

Collection plate

Flow

Nozzle Diameter Dj

Jet to plate distance

Jet velocity U

ELPI+TM Operating Principle

© Dekati Ltd.

HV

Grimm Seminar

ELPITM applications

• Automotive testing and research

• Combustion research

• Blow-by gas

• Brake wear debris

• Pharmaceutical studies

• Outdoor air quality measurements

• Indoor air

• Welding fumes

• …

Grimm Seminar

Indoor air measurements with ELPITM

Grimm Seminar

Welding fume measurements with ELPITM (I)

Grimm Seminar

-1.0E+06

-8.0E+05

-6.0E+05

-4.0E+05

-2.0E+05

0.0E+00

2.0E+05

4.0E+05

6.0E+05

8.0E+05

1.0E+06

11:00 11:15 11:30 11:45 12:00 12:15 12:30

Cn, #/c

m3

0.00

0.04

0.08

0.12

0.16

0.20

0.24

0.28

0.32

0.36

0.40

NM

D, um

Number

NMD

BACKGROUND

FUME

-1.5

-1.0

-0.5

0.0

0.5

1.0

1.5

11:00 11:15 11:30 11:45 12:00 12:15 12:30

Cm

, m

g/m

3

0.0

0.4

0.8

1.2

1.6

2.0

2.4

NM

D,

um

Mass

MMD

Welding fumes

• Variable concentration/size (1E4 – 1E6#/cm3)

• MMD 300-600nm

• Short time-scale measurement

Grimm Seminar

Welding

• 10lpm ELPITM with

filter stage

• Al – foils with grease

• Pump + hose set

• Diluter if needed

Time 11:53 - 11:56

0.0E+00

1.0E+05

2.0E+05

3.0E+05

4.0E+05

5.0E+05

0.01 0.1 1 10

Dp/umdN

/dlo

gD

p [

#/c

m³]

Time 11:53 - 11:56

0.0E+00

2.0E+04

4.0E+04

6.0E+04

8.0E+04

1.0E+05

0.01 0.1 1 10

Dp/um

dN

/dlo

gD

p [

#/c

m³]

Time 11:53 - 11:56

0.0

0.4

0.8

1.2

0.01 0.1 1 10Dp/um

dm

/dlo

gD

p [

mg/m

³]Time 11:53 - 11:56

0.0

0.4

0.8

0.01 0.1 1 10Dp/um

dm

/dlo

gD

p [

mg/m

³]

Fume Background

Fast electric mobility instruments

TSI EEPS/FMPS

Grimm FAPES

Cambustion DMS-500


38 - Jürgen Spielvogel - EXIS – 2. 9. 2009

High Concentration Particle Counter Series

FAPES = 12 x (FCE + DMA) + Software = ultrafast absolute reference

• transient measurements with 25 channels

updated every 200 milliseconds

• virtually no internal contamination

• insensitive to pressure changes (e.g. as

observed during acceleration drive cycles)

• unmatched in sensitivity and flexibility

by any other commercial instrument

Fast Acceleration: Diesel engine

0-120 km/h in 20 s. 1.9 l, (EURO3)

Fast Acceleration: Gasoline fueled

0-120 km/h in 30 s. engine, 3.5 l

PPS-M Operation Parameters

Inlet flow 6 LPM

Outlet flow 17,7 LPM

Ionizing and sheath air

11,7 LPM @1.5 bar overpressure

6/10/2013 39 Pegasor Technical Marketing Presentation

PPS-M Operation Principle

clean air

corona discharge

pump flow trap

out sample in

ejector throat

+ ion

soot

+


Time Response of PPS vs. MSS on

Engine Torque

Use of slow averaging instruments make conclusions difficult and often wrong

0

100

200

300

400

1040 1060 1080 1100 1120 1140 1160 1180 1200 1220 1240time [s]

PP

S-M

, M/1

0

0

10

20

30

40

MSS

[m

g/m

³]

PPS-M [mV]

M/10 [Nm]

MSS [mg/m³]

0

100

200

300

400

1080 1100 1120 1140time [s]

PP

S-M

, M/1

0

0

10

20

30

40

MSS

[m

g/m

³]

PPS-M [mV]

M/10 [Nm]

MSS [mg/m³]


DiSC

Average Particle Size

Particle Count

Active Surface/LDSA

DiSC

Battery life 8 hrs

Measures 10 to 300 nm

Suited for field studies

No technical experience

necessary

Arbetsmiljö

alveolisk

inhalerbar

torakal

Procent av totalmängden partiklar enligt SS-EN 481 standarden

Aerodynamisk partikeldiameter [mm]

Pro

cent

av t

ota

lam

ängden

par

tikla

r [%

]


Förklaringar

Inhalerbar fraktion:

Den mängd partiklar, av totalmängden partiklar i luften,

som inandas genom näsa och mun.

Torakal fraktion:

Den del av de inhalerbara partiklarna som passerar

struphuvudet.

Respirabel fraktion:

Den del av de inhalerbara partiklarna som når längst ner

i luftvägarna till alveolerna i lungorna.


Definitioner, AFS 2011:18 (2012-07-01)

Benämnning Förklaring

Luftförorening Ämne eller blandning av ämnen i luft som över en viss halt kan

medföra ohälsa

Hygieniskt

gränsvärde

Högsta godtagbara genomsnittshalt av en luftförorening i

inandningsluften beräknat som ett tidsvägt medelvärde. Ett

hygieniskt gränsvärde är antingen ett nivågränsvärde eller ett

takgränsvärde.

Nivågränsvärde Hygieniskt gränsvärde för exponering under en arbetsdag, normalt 8

timmar.

Takgränsvärde Hygieniskt gränsvärde för exponering under en referensperiod av 15

minuter. För ammoniak, monoisocyanater och diisocyanater gäller

referensperioden 5 minuter.

Korttidsvärde Ett rekommenderat högsta värde för exponering beräknat som ett

tidsvägt medelvärde under en referensperiod av 15 minuter.

Korttidsvärden är rekommenderade värden som tjänar som riktlinjer i

skyddsarbetet och används vid bedömning av

exponeringsförhållanden.


Gränsvärdeslistan, AFS 2011:18

Typ av Luftförorening Enhet

Gaser, ångor mg/m3; ppm (ml/m3, cm3/m3)

Damm, rök, dimma, aerosol mg/m3

Enzymer glycinenheter/m3

Fibrer fibrer/cm3

Radon Bq/m3


Gränsvärden, några exempel AFS 2011:18

Ämne

År

Nivågränsvärde

(mg/m3)

Damm, organiskt

- inhalerbart damm

- respirabelt damm

2005

1974

10

5

Damm och dimma, organiskt

-totaldamm

1974

5

Damm, bomull (råbomull)

- totaldamm

1974

0,5

Damm, grafit

-totaldamm

2000

5

Damm, härdplast

- totaldamm

1978

3

Damm, kol inkl. kimrök

- totaldamm

1978

3

Damm, mjöl

- inhalerbart damm

2000

3


Rökpartiklar, exv. svetsning

Rökpartiklar, från till exempel svetsning, är i regel av storleksordningen < 1 μm, vilket innebär att dessa till största delen består av respirabla partiklar. Det innebär att alla rökpartiklar kan betraktas som respirabla. Därför behöver man inte använda provtagare med föravskiljare vid provtagning då enbart rök föreligger.


Metallrök vid exv. svetsning

Metallrök bildas i regel genom kondensation och eventuell oxidation av metallånga. Vanligtvis utför svetsaren även slipning eller slaggning varför även det luftburna dammet i en svetsares andningszon kan bestå av en hög andel icke-respirabelt damm.


This concludes my presentation

Thank you for your attention

More information available at:

www.exisab.com


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