GASTEC 155 Methyl Cyclohexanone Detector Tube Instructions

GASTEC 155 Methyl Cyclohexanone Detector Tube

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. The use of non-Gastec parts or components in Gastec’s detector tube and pump system, or use of a non-Gastec detector tube with a Gastec pump, or use of a Gastec detector tube with a non-Gastec pump may result in property damage, serious bodily injury, and death; voids all warranties; and voids all performance and data accuracy guarantees.

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 or 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, observe the following.

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 O – 40°C (32 – 104°F ).
3. Use this tube within the relative humidity range of O – 90%.
4. This tube may be interfered with by the coexisting gases. Please refer to the table “INTERFERENCES” below.
5. Shelf life and storage condition of the tube are marked on the label of the box of tube.

APPLICATION OF THE TUBE

Use this tube for detecting Methyl cyclohexanone in the air or in industrial areas and for determining the environmental atmospheric condition.

SPECIFICATION

(Because of Gastec’s commitment to continued improvement, specifications are subject to change without notice.)

dinitrophenylhydrazine to form dinitrophenylhydrazone to produce yellow in colour
C1H120 + CsH3(N02)2NHNH2 → (CH3)2C:NNHCsH3(N02)2

Coefficient of Variation : 15% (for 2 to 1 O ppm), 10% (for 1 O to 50 ppm)
Shelf Life : Please refer to the validity date printed on the box of tubes.
Store the tubes at 10°C (50°F) or below in a refrigerator.

CORRECTION FOR TEMPERATURE, HUMIDITY AND PRESSURE

Calibration of the Gastec detector Tube No.155 is based on a tube temperature of 20°C (68°F) and not the temperature of the gas being sampled, approximately 50% relative humidity and normal atmospheric pressure.

Temperature : Correct for temperature by the table below :

Humidity : No correction is required between O – 90% R.H.
Pressure : To correct for pressure, use the formula below

• This value is after other correction(s), if any, are applied.

MEASUREMENT PROCEDURE

1. For checking the leakage of the pump, insert a fresh sealed detector tube into the pump. Follow instructions provided with the pump operating manual.
2. Break tips off a fresh detector tube with the tube tip breaker of the pump.
3. Insert the tube into the pump inlet with arrow ( ) on the tube pointing toward pump.
4. Make certain the pump handle is all the way in. Align the guide mark on the pump body with the guide mark on the handle.
5. Pull the handle all the way out until it locks at one pump stroke (100 ml). Wait three minutes and confirm the completion of the sampling. Repeat the above sampling procedure two more times.
6. For measurements higher than 50 ppm, prepare a fresh tube and perform two pump strokes.
7. Read concentration level at the interlace where the stained reagent meets the unstained reagent.
8. II temperature correction is necessary, obtain the true concentration by using the temperature correction table. Afterwards multiply the correction factor of pump stroke ii necessary.
9. II pressure correction is necessary, use the pressure correction formula.

INTERFERENCES

This table of interference gases primarily expresses the interference of each coexisting gas in the gas concentration range, that is equivalent to the gas concentration. Therefore, the test result may give a positive result from other substances not listed in the table. If more information is needed, please contact us or your Gastec representatives.

DANGEROUS AND HAZARDOUS PROPERTIES

Threshold Limit Value -Time Weighted Average by ACGIH (2021) : 20 ppm
Explosive range : 1.15 % or higher

INSTRUCTIONS ON DISPOSAL

The reagent of the tube does not use toxic substances. When disposing the tube regardless of whether it has been used or not, follow the rules and regulations of your local government.

WARRANTY

If you have any questions regarding gas detection and quality of the tubes, please feel free to contact your Gastec representatives.

CUSTOMER SUPPORT

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

References

• GASTEC CORPORATION | For all types of gas and vapour

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