Instructions for GASTEC models including: 13TP, Carbon Disulphide Detector Tube, Disulphide Detector Tube, Carbon Detector Tube, Detector Tube, Tube
Title: Instruction manual Carbon disulphide detector tube No.13TP GASTEC Author: GASTEC CORPORATION Created Date: 11/14/2022 10:15:49 AM
Instruction manual | GASTEC CORPORATION
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DocumentDocumentInstructions for No.13TP Carbon Disulphide Detector Tube FOR SAFE OPERATION : Carefully read this manual and the instruction manual of your Air Sampling Pump before use. 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 the eyes. 2. Do not touch the broken glass tubes, pieces or reagent with bare hands. NOTES : For maintaining performance and reliability of the test results, observe the following. 1. Recommend to use Gastec Gas Sampling device Model GSP-300FT-2 or GSP-501FT 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 - 35 (32 - 95). 3. Use this tube within the relative humidity range of 0 - 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 tubes are marked on the label of the box of tubes. APPLICATION OF THE TUBE : Use this tube for the measurement of Carbon disulphide in air or in the industrial areas and environmental atmospheric condition. SPECIFICATION : (Because of Gastec's commitment to continued improvement, specifications are subject to change without notice.) Humidity scrubber Oxidising agent Pretreatment layer ÷õø ÷õù ÷õú ÷õû ÷õü ÷õý ÷õþ ÷õÿ ÷õ øõ÷ QQN 51 Detecting Layer The Minimum Scale (0.05ppm) is not printed on the tube and is indicated as a Scale Line only. Measuring Range Sampling Rate Correction Factor Sampling Time Detecting Limit Colour Change Reaction Principle (0.05) - 1.0 ppm 1.0 - 2.4 ppm 100 mL/min 50 mL/min 1 2.4 10 min 10 min 0.04 ppm (1000 mL) Blue Yellowish green CS2 + I2O5 + H2S2O7 SO2 + CO2 SO2 + Base Chloride Coefficient of Variation: 5% (for 0.05 to 1.0 ppm) ** Shelf Life: Please refer to the validity date printed on the box of tubes. ** Store the tubes in a cool and dark place. CORRECTION FOR ENVIRONMENTAL CONDITIONS : Temperature : No correction is required between 0 - 35°C (32 - 95°F). Humidity : No correction is required between 0 - 90% R.H. Pressure : To correct for pressure, use the formula below Tube Reading (ppm) × 1013 (hPa) Atmospheric Pressure (hPa) This value is after other correction(s), if any, are applied. MEASUREMENT PROCEDURE : If the Automatic Air Sampling Pump Model GSP-300FT-2 or GSP-501FT is used. 1. Prior to operation please confirm if black colour inlet rubber tube holder is equipped with the pump. 2. Break tips off a fresh primary tube and secondary tube by bending each tube end in the tube tip breaker of the pump. 3. Connect © marked ends with rubber tubing after breaking each end. 4. Insert the tube into the pump inlet with arrow ( ) on the tube pointing toward pump. 5. Set the flow rate to 100 mL/min and timer to 10 minutes at the pump. Press the start switch of the pump to start the sampling. 6. After sampling is completed, remove the detector tube from the pump. 7. Read the concentration level at the interface where the stained reagent meets the unstained reagent. For measurements higher than 1.0 ppm, prepare a fresh tube. Set the flow metre at 50 mL/min and timer to "10 minutes" of the pump and start the sampling again. 8. If necessary, multiply the readings by the correction factors of sampling rate and atmospheric pressure respectively. INTERFERENCES : Substance Hydrogen sulphide Carbonyl sulphide Dimethyl disulphide Methylene Chloride Acetone Methanol Sulphur dioxide Concentration 0.1 ppm 0.8 ppm 1.0 ppm 50 ppm 500 ppm 200 ppm 0.1 ppm Interference No No No Change colour by itself to Yellowish green ( 0.1ppm) Yellowish green ( 0.8ppm) Yellowish green ( 1.0ppm) No discolouration No discolouration No discolouration Yellowish green ( 0.1ppm) 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 Gastec representatives. WHEN MEASURING OVER AN INTERVAL OF 15 MINUTES : This Detector Tube can measure continuously for 15 minutes, so it is possible to measure the average concentration for 15 minutes in one measurement. In the case where this Detector Tube is used to measure over 15 minutes, follow the MEASUREMENT PROCEDURE and use values from the table below for set Sampling Rate, Sampling Time, and Correction Factor. Measuring Range (0.033) - 0.66 ppm 0.66 - 1.59 ppm Sampling Rate 100 mL/min 50 mL/min Correction Factor 0.66 1.59 Sampling Time 15 min 15 min DANGEROUS AND HAZARDOUS PROPERTIES : Threshold Limit Value-Time Weighted Average by ACGIH (2022): 1 ppm INSTRUCTIONS ON DISPOSAL : The reagent of the pretreatment tube uses a small amount of hexavalent chromium. The reagent of the detector tube does not use toxic substance. 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 us or 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 IM0113TPE1 Printed in Japan 22J1Z