SKC 520 Series Скачать руководство пользователя страница 1

Passive Sampler for Elemental Mercury

Catalog No. 520 Series

Introduction

The 520 Series Passive Sampler for Elemental Mercury is a lightweight, reusable 
personal sampler designed to be worn in the breathing zone of individuals who 
are potentially exposed to elemental mercury vapor.

The sampler is comprised of a reusable housing and a replaceable sorbent capsule. 
The sample enters the sampler by positive controlled di

 usion. The sorbent is 

analyzed by 

fl

 ameless atomic absorption. The sampler housing can be cleaned and 

reused with a new sorbent capsule. Validation of the SKC 520 Series Passive Sampler 
for Elemental Mercury is reported in OSHA Method ID-140.

Speci

fi

 cations*

Sorbent: Anasorb

®

 C300 (SKC proprietary sorbent; equivalent to 

Hydrar

®

 and Carulite

®

)

Limit of Detection: 

0.01 

μ

g

Limit of Quantitation: 

0.04 

μ

g

Capacity: > 

30 

μ

g mercury per capsule

Breakthrough Volume:  > 1500 liters of air
Overall Coe

  cient 

of Variation: 

6.1%

Sampling Rate: 

0.020 L/min (20 ml/min) at 20 C and 760 torr 

(see page 4)

*  Evaluated by the Health and Safety Executive (HSE) in the UK and reported in Method MDHS 16/2.

†  Limits may vary with analysis and instrumentation.

Note:

 For sampling low levels of mercury, use a sorbent tube.

Figure 1. 

Complete Assembly of Passive Sampler for Elemental Mercury 

Collar clip

Reusable 

housing Di

 usiv

barrier

Mesh screens

Retainer ring

Sorbent capsule

520-02, mesh side 

faces di

 usiv

barrier

Foam disc

Back cap

Protectiv

e cap

Operating Instructions

 863 Valley View Road, Eighty Four, PA 15330 USA

Tel: 724-941-9701 • 

www.skcinc.com

Содержание 520 Series

Страница 1: ... equivalent to Hydrar and Carulite Limit of Detection 0 01 μg Limit of Quantitation 0 04 μg Capacity 30 μg mercury per capsule Breakthrough Volume 1500 liters of air Overall Coefficient of Variation 6 1 Sampling Rate 0 020 L min 20 ml min at 20 C and 760 torr see page 4 Evaluated by the Health and Safety Executive HSE in the UK and reported in Method MDHS 16 2 Limits may vary with analysis and instr...

Страница 2: ...ampler s back cap and adhere to the ziploc bag 3 Mail or transport the sorbent capsule and at least one field blank to a qualified laboratory for analysis The sorbent should be analyzed within 30 days of sampling Store sample away from sources of contamination For Cleaning 1 Unsnap and remove the collar clip Clean with soap or detergent and water 2 Disassemble the sampler and place all parts excep...

Страница 3: ...lation used in the OSHA method see page 4 Presence of Other Gases The sampling of mercury on the sorbent has been shown to be unaffected by the presence of other gases including chlorine Note however that complex interac tions in the atmosphere may reduce the total free elemental mercury present to be sampled Analysis Consult OSHA ID 140 and MDHS 16 2 for detailed analytical procedures Preparation ...

Страница 4: ... lab result will indicate the total mass of mercury collected on the sorbent capsule in either nanograms 10 9 gram or micrograms 10 6 gram The airborne concentration of mercury is determined as follows 1 Convert reported mass of mercury into micrograms 10 6 gram 2 Convert sampling period into minutes 3 Sample Volume L Sampling Period x Sampling Rate x Temperature Pressure mins L min Correction Fac...

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