GASTEC 161L Ethyl Ether Detector Tube Instructions

No.161L
Instructions for
Ethyl Ether Detector Tube
Instructions

FOR SAFE OPERATION :

Carefully read this manual and the instruction manual of your Gastec Gas Sampling Pump.
⚠WARNING :

1. Use only Gastec detector tubes in a Gastec Pump.
2. Do not interchange or use non-Gastec parts or components in Gastec’s detector tube and pump system.
3. Using non-Gastec parts or components in Gastec’s detector tube and pump system or using a nonGastec detector tube with a Gastec pump or using a Gastec detector tube with a non-Gastec pump may damage your detector tube and pump system, or may cause serious injuries, or death to the enduser. It will also void all warranties; and guarantees regarding performance and data accuracy.

⚠ CAUTION : If you do not observe the following precautions, you may suffer injuries or damage the product.

1. When breaking the tube ends, keep away from eyes.
2. Do not touch the broken glass tubes, pieces and reagent with bare hand(s).
3. The sampling time represents the time necessary to draw the air sample through the tube. The tube must be positioned in the desired sampling area for the entire sampling time or until the flow finish indicator indicates the end of the sample.

△ NOTES :
For maintaining performance and reliability of the test results.

1. Use Gastec Gas Sampling Pump together with Gastec Detector Tubes only for the purposes specified in the instruction manual of the detector tube.
2. Use this tube within the temperature range of 0 – 40℃ (32 – 104℉).
3. Use this tube within the relative humidity range of 0 – 90%. When the dehumidifying layer is broken through the reagent changes colour to orange.
4. This tube may be interfered with by the coexisting gases. Please refer to the “INTERFERENCES” below.
5. Shelf life and storage conditions of the tube are marked on the label of the tube box.

APPLICATION OF THE TUBE :
Use this tube for the detection of Ethyl Ether in air or the industrial areas and determining the environmental atmospheric condition.

SPECIFICATION :

(As a result of Gastec’s commitment to continued improvement, specifications are subject to change without notice)

Coefficient of Variation : 10 % (for 10 to 100 ppm), 5 % (for 100 to 400 ppm)
Shelf Life : Please refer to the Validity Date printed on the tube box.
Store the tubes in dark and cool place.
CORRECTION FOR TEMPERATURE, HUMIDITY AND PRESSURE :

Temperature : Correct for temperature with the table below.

Temperature ℃(℉)| 0(32)| 5(41)| 10(50)| 15(59)| 20(68)| 25(77)| 30(86)| 35(95)| 40(104)
---|---|---|---|---|---|---|---|---|---
Correction Factor| 1.71| 1.41| 1.26| 1.19| 1| 0.87| 0.74| 0.69| 0.65

Humidity : No correction is required between 0 – 90% R.H.
Pressure : To correct for pressure, multiply the tube reading by

＊Tube Reading (ppm) × 1013 (hPa)

Atmospheric Pressure (hPa)
＊This value is after other correction(s), if any, are applied.

MEASUREMENT PROCEDURE :

1. For checking the leakage of the pump, insert a freshly sealed detector tube into pump.
   Follow instructions provided with the pump operating manual.

2. Break tips off a fresh detector tube with the tube tip breaker in the pump.

3. Insert the tube into the pump inlet with arrow ( ) on the tube pointing toward the pump.

4. Make certain pump handle is all the way in. Align the guide marks on the pump body with the guide marks on the handle.

5. Pull the handle all the way out until it locks on one pump stroke (100 mL). Wait 2 minutes and confirm the completion of the sampling. Repeat the above sampling procedure one more time.

6. For measurements higher than 400 ppm, prepare a fresh tube and perform one pump stroke.

7. Read the concentration level at the interface where the stained reagent meets the unstained reagent.

8. If temperature correction is necessary, obtain the true concentration by using temperature correction factor. Afterwards multiply the correction factor of pump stroke if necessary.

9. If pressure correction is necessary, use the pressure correction formula.

INTERFERENCES :

Substance| Concentration| Interference| Changes colour by itself to
---|---|---|---
Methanol| ≧10 ppm| +| Pale blue (≧10 ppm)
Acetone| ≧10 ppm| +| Pale blue (≧10 ppm)
Ethyl acetate| ≧1.6 ppm| +| Pale blue (≧1.6 ppm)

The table of this interference gases primarily expresses the interference of each coexisting gas in the gas concentration range, equivalent to the gas concentration. Therefore, the test result may be given positive result by the other substances not listed in the table. For more information is needed, please contact us or our distributors in your territory.

DANGEROUS AND HAZARDOUS PROPERTIES :
Threshold Limit Value-Time Weighted Average by ACGIH (2022) : 400 ppm
Threshold Limit Value-Short Term Exposure Limit by ACGIH (2022) : 500 ppm

DISPOSAL INSTRUCTION :

Reagent of the tube uses a small amount of hexavalent chromium. When disposing the tube regardless of used or unused, follow the rules and regulations of the local government.
WARRANTY :
If you have any questions regarding gas detection and quality of the tubes, please feel free to contact your Gastec representatives.

Manufacturer : Gastec Corporation
8-8-6 Fukayanaka, Ayase-City, Kanagawa 252-1195, Japan
https://www.gastec.co.jp/
Telephone +81-467-79-3910 Facsimile +81-467-79-3979
IM00161E3
Printed in Japan
22H1Z

References

• GASTEC CORPORATION | For all types of gas and vapour

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