7 DRY FLO
Dry Flo was carefully formulated to produce accurate results without harming the ana-
lyzer. Use of any other medium with the analyzer may give inaccurate results or damage
the plunger seal, and could invalidate the warranty of the analyzer.
Dry Flo is made of tiny, rigid beads and a small amount of dry lubricant. It can be handled safely with
a minimum of equipment. Dry Flo flows freely over surfaces and readily shakes or brushes off most
objects unless the objects are wet or sticky. Dry Flo can be handled and measured with ordinary
laboratory utensils — such as funnels, scoops, and beakers — made of metal, plastic, paper, glass,
or other materials. Utensils must be clean and dry. Use isopropyl alcohol to clean the utensils.
Dry Flo is minimally contaminating, and most samples can be used in other tests after a light shaking
or brushing. Should surface roughness trap a few beads, the effect on subsequent testing or use is
negligible in most cases.
Dry Flo should be handled with care to avoid creating dust while breathing. Gloves,
protective clothing, and protective glasses should be worn when handling Dry Flo.
Dry Flo is not harmful to skin, however residue from Dry Flo may remain on surfaces
and may mark or stain fabrics or paper.
HOW TO HANDLE DRY FLO
l Use a spoon or scoop to move small amounts of Dry Flo from one container to another.
l Use soap and water to clean residue off hands.
l For consistent results, shake the bottle of Dry Flo periodically to remix the contents.
l Pour Dry Flo gently to avoid splashing (use a funnel to facilitate pouring). Do not drop samples
into the medium; instead, slide them gently down the side of the chamber.
l Use a soft paintbrush to remove clinging particles of Dry Flo from surfaces.
l Use a sieve to recover samples after analysis. A 75 mm diameter sieve with 350to500mm open-
ings retains the sample and allows the Dry Flo to pass through freely. A sieve pan and sieve are
included in the accessories.
l Dry Flo sometimes becomes compacted during analysis. Shake the chamber/plunger assembly
to loosen the Dry Flo.
Brush away any Dry Flo clinging to the bottom of the chamber or the top of the plunger
to ensure proper mounting on the analyzer. Because the accuracy of the GeoPyc’s cal-
culations relies on precise measurements of the distance traveled by the plunger, debris
trapped between the chamber/plunger and the analyzer can affect results.
7 Dry Flo
GeoPyc 1365 Operator Manual
136-42800-01 (Rev -) — Dec 2016
7 - 1
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