1989-11-22_REVISION - M1988112 - Laserfiche WebLink

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pseaaurisias sea has not sewed through the filter, and if no additional liquid has passed ehroush the filter in any 2-ninuee interval, proceed to the nest 10-pa! Leasesrnt. When the pressurizing sea basins eo sove •throush the tilter, er dean the liquid flor has ceased ae SO psi (i.e., filtratioa does eat resole in say additional filtrate riehin a 2-siauee period), atop eha filtration. ~Q~: Instantaneous application of hi'sh pressure can degrade the slags Tiber filear and say Gauss presature plugging. 7.6.3.3 the uatsrial in the filter holder is defined as .the solid phase of the reset, and the liltrata La defined as eha liquid pReaae. Weish the liquid phase. She liquid phase say nor b• tither analysed (sae Steps 7.6.7 - 7.7.9) os stared at 4•C until ease o! extract analysis. )jpis: Soda resets, such u oily vaaesa and sow paint rastea, will obviously contain sow saterial which appears to be a liquid. Even attar applyins vacuus or pressure liltraeion, as outlined in Step 7.6.3.2, this arterial say not tileer. If this !a the cane, the siaterial ritlfia eha filtration device is defined as a solid, and la carrisd ehroush the extraction ae a solid. Lb not replace eha orlsieeal filter rich a fresh filter uadas say cireuotanees. Use only one filear. 7.6.3.4 I! the rases contains tO.S percent dry solids (see Step T.4.3), the liltrsee is dafiaed as eha 1312 extract. Proceed to Step 7.6.7. Lt eha mate eonesias X0.3 percent dry solids (sae Seep 7.4.3), sad if particle-rise reduction of the solid rag needed in Seap 7.5, proceed eo Step 7.6.3.5. I! the rues as reeeiwd passes a 9.S ~ eiew, quaatitatiwly eraaater the solid oaterial into the extractor bottle alone rith eha tileer used to separate the initial liquid fros the solid phase, sad proceed Co Step 7.6.4. 7.6.3.5 Prepare the solid portion of the vests for extraction as described in Stap 7.5. When the surface area or parsiela-size has been appropriately altersd, gvsatiestiwly tsaasfes the solid sacerial into an extractor bottle. Italuda eha liltar wed to separate the initial liquid lros the solid phase (if the iaieial phase vas not 100 percent solid). j~~: sierlns of the ruse is not norsally required. Surface area sequiresaata era asanc foc filasentous (~„s., paper, eleth) and slailar mate s~aterials. Actual aaesureseat of surface area is not recossendad. If sievins is necessary, a ietloa-coated stew should be used to avoid eoatasiaation o! the sample. 7.6.4 Detersive the asoune of extraction fluid to add based on the follorins Lorsula: rt. of extraeeioa fluid (al) - 20 x ~ solids (Step 7.2 or 7.3.6) x rt. of waste filtered (Seen 7.2 er 7.6.1.31 100 Slorly add the aseunt o! appropriate extraction fluid co the extractor weasel. Close the extractor bottle rightly (ic is recomendad chat Seflon 9