Connect tubing Extention (2-4 ft long) equipped with exhaust Valve (Valve 4) with the sample container outlet valve (Valve 3). This method is recommended to eliminate the possibility of the presence of heavy hydrocarbon condensate outlet valve in the sample container. Next do the sampling procedure in the following manner:
1) Open the valve at the sampling point and clean the dirt collected.
2) Connect one end of the sample container through the source gas sampling system. Sample containers must be in an upright position.
3) Stream gas sample flows through the sample and the sample container slowly, her intention to eliminate the air (waive 2, 3 and 4 dibukan full and open Valve 1 sediki t).
4) Close the valve on the extension line (Valve 4) and let the pressure rising until it reaches the pressure of the sample container.
5) Close the sample container inlet Valve (Valve 2) and slowly open the sample container holes through Valve extension tube (Valve 4) to atmospheric pressure. Then open the sample container inlet Valve (Valve 2).
6) Repeat step (4) and (5). In Table II, given how many repeat step (4) and (5) must be carried out, ie flushing (purge) the effective sample container so truly representative sample is obtained.
Figure 4. Sampling Gas – Purging Fill and Empty Methode
(7). With a sampling manifold pressure gage on the amount of pressure ditun-jukkan sample container. Open the sample slightly Valve (Valve 1) and open a few others ex-tension Valve Valve (Valve 4), with the inlet valve pad a sample container is opened wide, it is intended to obtain the desired sampling pressure and flow rate into the sample container. Note: When the sample container pressure equal to the pressure source of gas, then the sample Valve (Valve 1), opened wide.
(8). Continue the sample stream for 30 minutes. Observe the presence of fluid on Valve sediki t huang extension tube (Valve 4). When visible contained fluids, huang sample.
(9). If there is no fluid on Valve 4 closed simultaneously between the valve and the sample container valve tube extension (Valve 1 and Valve 4). This is done when the pressure container has reached the desired sample.
(10). Note the pressure of the sample container. Close the inlet valve and outlet valve container samples. Note: If desired more than one, the sample container to be filled in the same time and by using a manifold.
(11) Move the sample container and the test is by dipping the valve in by using detector solution, then corked valve leak in the water, or leak.