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

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

Qty:

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