Laserfiche WebLink
2. Upon arriving at the sample station, the raoprene rubber ends of the sample lines are <br /> l checked for dirt and dust accumulation. If necessary, the sample lines are flushed <br /> with <br /> distilled water. <br /> 3. The pressurelvacuum line is connected to the vacuum gage of the vacuum hand pump. <br /> The:elarnp on the vacuum line is o and the residual vacuum.remaining on the. <br /> 'Iysimeter unifis measured-aiid recorded on the lysimcter sampling log. <br /> 4: The pressure/vacuum line js connected to-the pressure pump and the discharge (sample) <br /> line opened. She discharge line is inserted into a.clean,tinpresetved ; liter plastic bottle <br /> prepared and supplied by the analytical laboratory. <br /> S-' The presssurc pump is activated, forcing air into-the lysimetm if additional press-uxe.is <br /> needed to retrieve the fluid more quickly, the pressure is increased until adequate flow is <br /> achieved. <br /> 6. The sample is split to other appropriately preserved bottles as necessary-for the analytical <br /> requirements. The samples are placed in an ice-filled chest to maintain a temperate a f <br /> approximately 4 degrees Celsius during delivery to the laboratory under chain-of-custody <br /> ,procedures_ ' <br /> 7- Afzer the 'sample is collected, the. lysiiaeter vacuum_is reset (evacuated) to the <br /> manufactured recommended value using a'hand vat pump. At this time,'the <br /> iysuneter is tested to evaluate potential leaks that could cause vacuum pressure loss_ The <br /> Pressure/vacuum line is then clamped and the lYsimeter secured. <br /> 23-483849-F011231OR32s A-13 Ju 142000 <br /> Copyd �2000 KkWcl4a.Inc. ' <br />