Industrial / Gas Detection
User Manual for Gastec 152L Methyl Ethyl Ketone Detector Tube
Quick guide for the Gastec 152L Methyl Ethyl Ketone Detector Tube. Includes measurement procedures, correction factors, safety warnings, and storage instructions.
Table of contents
Manual images
Click an image to enlargeQuick Guide for Gastec 152L Detector Tube
The Gastec 152L detector tube is designed for the detection of Methyl Ethyl Ketone in air. To ensure accurate results, always use Gastec sampling pumps and follow the specific measurement procedures outlined below. Store tubes in a refrigerator at 10°C (50°F) or less.
Safety and Handling
- Warning: Use only Gastec detector tubes with Gastec pumps. Using non-original parts can cause serious injury or death and voids the warranty.
- Handling: When breaking the tube ends, keep them away from eyes. Do not touch broken glass or reagents with bare hands.
- Storage: Keep tubes refrigerated at 10°C (50°F) or lower. Check the expiration date on the box.
Measurement Procedure
- Leak Check: Perform a leak check on the sampling pump before use according to the pump's manual.
- Preparation: Break the tips of a new detector tube using the pump's tip breaker.
- Connection: Connect the tube ends marked with the Gastec logo to the rubber tubes of the pump.
- Insertion: Insert the tube into the pump inlet with the arrow on the tube pointing towards the pump.
- Sampling: Ensure the pump handle is fully pushed in and aligned. Pull the handle out until it locks (100 mL). Wait for the specified sampling time (2 minutes for 1 stroke, 1 minute for 1/2 stroke).
- Reading: Read the concentration at the interface of the stained-to-unstained reagent.
Specifications and Corrections
Measurement Ranges
- 1 Stroke: 10 - 120 ppm (Sampling time: 2 minutes)
- 1/2 Stroke: 120 - 384 ppm (Sampling time: 1 minute)
Corrections
Temperature: Apply correction factors based on the provided temperature table (0°C to 40°C).
Pressure: Multiply the tube reading by the pressure correction factor (Atmospheric pressure in hPa).
Humidity: No correction is required.
Interferences
Certain gases may interfere with the reading. Acetaldehyde, Acetone, Ethyl acetate, Diethyl ether (>=20 ppm), and Methanol (>=50 ppm) may cause interference and change the color to reddish purple. Acetic acid, Trichloroethylene, Toluene, and Hexane do not interfere.
Disposal
The tube reagent does not contain toxic substances. Dispose of used or unused tubes in accordance with local regulations.
Manufacturer information
Gastec Corporation
Practical help
Common problems
Inaccurate readings due to temperature
Apply the correction factor from the temperature table provided in the manual based on the ambient temperature.
Pump leakage
Always perform a leak check on the sampling pump before inserting the detector tube.
Interference from other gases
Check the interference table; substances like Acetone or Acetaldehyde may cause false positive readings.
Before use
- Check the expiration date printed on the tube box.
- Ensure tubes have been stored at 10°C (50°F) or less.
- Perform a leak check on the Gastec sampling pump.
- Verify the correct number of pump strokes (1 or 1/2) for the expected concentration range.
- Ensure the arrow on the tube points toward the pump.
Specs in practice
- Measurement Range
- 10-120 ppm for 1 pump stroke; 120-384 ppm for 1/2 pump stroke.
- Sampling Time
- 2 minutes for 1 stroke; 1 minute for 1/2 stroke.
- Reaction Principle
- The reagent reacts with Methyl Ethyl Ketone, changing color from Yellow to Reddish Purple.
Images and diagrams
- The tube must be inserted into the pump with the arrow pointing towards the pump body.
- The pump handle must be fully pushed in and aligned with the guide marks before starting the sampling.
Model compatibility
- Use only with Gastec gas sampling pumps.
- Do not use non-Gastec parts or components.
Manual page author
Michael Turner
Technical manual editor
Reviews PDF manuals for structure, safety notes, and practical product details so readers can find the right information quickly.