ASTM D [ Withdrawn ]. Standard Practice for Sampling Insulating Liquids for Gas Analysis and Determination of Water Content. For complete instructions on sampling electrical insulating fluids for GAS ANALYSIS and determination of water content refer to ASTM D Adjust flow. electric equipment, are detailed in the Doble Reference Book on Insulating Liquids and Gases , ASTM Practices. D  and D . GOOD SAMPLE.
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Perform this condition procedure onemore time.
Transformer Oil Gas Analyser (TOGA)
Care must be taken in drawing astn to preventcontamination and to ensure a truly representative sample. Wipe the inside of the valve and threads with a clean lint free cloth. Drain at least 1. Install the drain valve security plug. See Test Methods D for further details about generalcleaning requirements.
Do not pull d33613 manually since this can result in bubble formation. Cleaning of Apparatus 5. Open the lower valve on the steel cylinder. Slowly depress the syringepiston until all the oil is evacuated from the syringe completing FIG.
Chalmers The Components of Content. The tubing should not be reused. Current edition approved April 10, Take extreme caution when samples are drawn from electrical apparatus having a small volume of insulating fluid.
If the slug ast away from the electrical apparatus, a positive pressure exists. Drain at least 1. When thedrying period has expired, syringe pistons shall be placed intheir barrels, valves closed; stainless steel cylinder valvesshould be closed; or cans sealed with their screw cap.
D free download, or read D online
Preparation for Sampling 6. If the slug moves towardsthe electrical apparatus, a negative pressure exists. If any sound is heard,the cylinder should be drained and the sampling repeated. Remove the security pipe plug from the drain valve. Do astj allow the oil to be exposed tosunlight. Immediately close the port to thesyringe Fig.
ASTM D for Sampling Insulating Liquids for Gas Analysis and Water Analysis – YONGRUN
Extreme care should be used in performing this procedure. With all three valves openand the cylinder held in a vertical position see Fig.
Sampling should be discontinued. Please download to get full document. Thank you for visiting our website and your interest in our free products and services.
Last previous edition D — Install the drain valve security plug.
Contact with us now Your mail: Convenient cardboard cartons for storing and trans-porting syringes can be obtained. Attach the plastic tube tothe syringe as shown in Fig.
Wipethe inside of the valve and threads with a clean s3613 cloth. Do not release any evolvedgases bubbles since these gases must be included in thedissolved gas analysis.