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GAS174D Butadiene-1,3 Passive Dosi-Tube 1.3 - 200ppm

SKU: GAS174D

GAS174D


Next Working Day Delivery - When Ordering Gastec Detector Tubes from a1-cbiss, we aim to deliver to your site for the next working day.


Large UK Stock Holding - 95% of our Gastec Detector Tubes are held in stock so our delivery times are quick


Gastec Price Promise - We'll better any like for like competitors' offer. Provide us with a valid quote and we will beat it


Shelf Life - a1-cbiss will never dispatch detector tubes with less than 3 months remaining before expiry. a1-cbiss employ a stock rotation policy of first in, first out. Specific shelf life requirements must be identified at the point of order placement (use the comment box in the checkout process). The expiry date is printed clearly on the front of the detector tube packet.

Excl. VAT: £35.00 Incl. VAT: £42.00
Excl. VAT: £35.00 Incl. VAT: £42.00

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Product Description

Details

GAS174D Butadiene-1,3 Gastec Passive Sampling Dosi Tubes (Time Weighted Average Detector Tubes)

The Dosi-Tube System allows an operator to evaluate the level of gas a worker is exposed to over a time period such as a working shift.

The Dosi-Tube is easily clipped into the Dosi-tube holder (GAS710) which is worn on a garment of clothing.

Performance

Measuring Range

1.3 to 200 ppm

Sampling Hours

1 to 8 hours

Detecting Limit

1.3 ppm (8 hours)

Colour Change

Reddish purple           Pale brown

Reaction Principle

Butadiene reacts with Permanganate to produce light brown reaction product.

CH2:CHCH:CH2 + MnO4 (Reddish purple)          Pale brown product

Coefficient of Variation

10% (for 10 to 200 ppm∙hr)

Shelf Life

Up to 2 years from point of manufacture

Corrections for
temperature & humidity

Temperature correction is necessary

Store the tubes at cool and dark place.

 

Possible coexisting substances and their interferences

 

Substance

Concentration

Interference

Change colour by itself

Unsaturated hydrocarbons

-

Plus error

Produce pale brown discoloration

Other substances measurable with this detector tube

 

 

 

Substance 

Correction 

Measuring range 

Ethylene

Factor: 1.2

1.56 to 240 ppm

Vinyl Chloride

Factor: 1.2

1.56 to 240 ppm

Isoprene

Factor: 2.0

2.6 to 400 ppm

Trans-1,2-Dichloroethylene

Factor: 3.0

3.9 to 600 ppm

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