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GAS152D Methyl Ethyl Ketone Passive Dosi-Tube 2 - 600ppm

GAS152D Methyl Ethyl Ketone Passive Dosi-Tube 2 - 600ppm

SKU: GAS152D

GAS152D

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

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Product Description

Details

GAS152D Methyl Ethyl Ketone 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 holder (GAS710) which is worn on a garment of clothing.

Performance

Measuring Range	2 to 600 ppm
Sampling Hours	1 to 10 hours
Detecting Limit	2 ppm (10 hours)
Colour Change	Yellow Reddish Brown
Reaction Principle	Methyl Ethyl Ketone reacts with Hydroxylamine Phosphate to liberate Phosphorus acid, which discolours pH indicator to reddish brown. 3CH₃COC₂H₅ + (NH₂OH)₃H₃PO₄ H₃PO₄ H₃PO₄ + Base Phosphate
Coefficient of Variation	10% (for 20 to 600 ppm-hr)
Shelf Life	Up to 2 years from point of manufacture
Corrections for temperature & humidity	Temperature correction is necessary
Store the tubes in the refrigerator to keep at 10^oC (50^oF) or below.

Possible coexisting substances and their interferences

Substance	Concentration	Interference	Change colour by itself
Aldehydes	-	Plus error	Discolours reddish brown
Ketones	-	Plus error	Discolours reddish brown
Acid gases	-	Plus error	Discolours reddish brown (Unclear demarcation)