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GAS211M Sulphide Ions Gastec Detector Tubes 2 - 300ppm

SKU: GAS211M

GAS211M


Next Working Day Delivery - When Ordering Gastec 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.

Excl. VAT: £29.95 Incl. VAT: £35.94
Excl. VAT: £29.95 Incl. VAT: £35.94

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Product Description

Details

GAS211M Gastec Soluble Ion Detector Tubes

The soluble ion tube system offers a quicker, cheaper and easier alternative to using laboratory based anaylsers for measuring dissolved substances
(i.e. in solution).

To measure, simply immerse the detector tube in a sample of liquid (placed in a beaker or other container). Anyone can measure concentrations quickly, easily and accurately on site.

Performance

Measuring Range

2 to 300 ppm

Sampling Time

2 minutes

Detecting Limit

0.5 ppm

Colour Change

White          Brown

Reaction Principle

S2- + Pb (CH3COO)2           PbS

Coefficient of Variation

15% (for 0.5 to 3.0 ppm), 10% (for 3.0 to 20 ppm)

Shelf Life

3 Years

Corrections for
temperature & humidity

Unnecessary

Store the tubes at cool and dark place.

 

Possible coexisting substances and their interferences

 

Substance

Concentration

Interference

Change colour by itself

CO32-

500 ppm

Plus error

No discoloration

Cl-

15000 ppm

Plus error

No discoloration

CrO42-

50 ppm

Minus error

Yellow discoloration

SO32-

200ppm

Minus error

No discoloration

S2O32-

100 ppm

Plus error

No discoloration

Calibration gas generation

Sodium Sulphide standard solution

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