FEPA Powder Size Specification from READE

Manufacturer, custom toll processor, and global distributor of higher tech specialty chemical raw materials (powders, foils, and wires).

Reade Advanced Materials offers:

FEPA Powder Size Specifications

Grit Size

3% max.
larger than, mcm

50% min.
in size range, mcm

94% min.
larger than, mcm

Grit Size

3% max.
larger than, mcm

50% min.
in size range, mcm

94% min.
larger than, mcm

F12

2000

N/A

1400

F120

125

N/A

90

F14
1700 N/A 1180
F150
106 N/A 63

F16
1400 N/A 1000
F180
90 N/A 53

F20
1180 N/A 850
F220
75 50.0 - 56.0 45

F24
850 N/A 600
F240
70 42.5 - 46.5 28

F30
410 N/A 500
F280
59 35.0 - 38.0 22

F36
600 N/A 425
F320
49 27.7 - 30.7 16.5

F40
500 N/A 355
F360
40 21.3 - 24.3 12

F46
425 N/A 300
F400
32 16.3 - 18.3 8

F54
355 N/A 250
F500
25 11.8 - 13.8 5

F60
300 N/A 212
F600
19 8.3 - 10.3 3

F70
250 N/A 180
F800
14 5.5 - 7.5 2

F80
212 N/A 150
F1000
10 3.7 - 5.3 1

F90
180 N/A 125
F1200
7 2.5 - 3.5 1

F100
150 N/A 106

Informal Comments:

1) Warning: The diameters of grits shown in the table are estimated and for information only, the FEPA "F" standard defines them as a range and not a single value.

2) FEPA= Federation of European Producers of Abrasives

3) The 3% and 94% limits fix the relative slope of the size distribution curve for a particular size determined by photosedimentromety.

Courtesy Of: UK Abrasives Bulletin\Sizes Rev.3 of 8.23.97 & Washington Mills Corp.

East Coast USA: 1-401-433-7000 / West Coast USA: 1-775-352-1000 / Latin America: 507-314-1282

/ general key words: aas abrasive acid activated additive aerosol agglomerates air alloy alpha aluminide american amorphous ampoule angstrom argon atomization bar basis bead beta black blending blocks black brazing briquette brown bubble buckyball buckytube calcined can card ceramic chip chop circular clad classification coating cold colloidal commerce commercial composite compound conductive credit crushed cryogenic crystal crystalline cubes custom cylinder dendritic dense density deposition diameter dielectric dimensional disc discontinuous discover disposable distilled doped drop drum dry dust e-commerce electronic electrolytic elemental enriched evaporation express felt fiber filings fine filler flake foam foil food grade frit fullerene fused gamma gas gauze glass grade grain granule granular grignard grinding grit ground heat hexane helium homogenizing hot inch in inert ingot inorganic intermetallic irregular jar j-i-t just leaf liquid lump kanban magnetic massive master media memory mesh metal metallic melted metallic micro micron microcrystalline milling millimeter mineral mm molecule mro nanocrystal nanomaterial nanometer nanophase nanostructure nanotube nanowire natural needle nitrogen nrc oil optical organic packaging particle paste pellets pharmaceutical grade phase pieces planar plasma spray plastic plate platelet polishing polycrystalline polymer porous powder ppm precipitated precious precursor premium pressed pressure printing processing procurement pulverize puratronic pvd pzt quasicrystal radioactive random rapid rare earth reacted reaction reagent rectangular red redistilled reduction refined reinforcement remelted ring rod round screening secure service set shape sheet shot sieve sifting single sink size slug soft solder solid solidification soot sphere spherical spheroidal splinter sponge sputtering sintered sol gel stabilized standard sub sublimed superabrasive super superalloy superconductor synthesis synthetic tablets tabular target tear technical test dust thermal spray thick three thin time toll tpn tube turnings tzm ultrathin un under uncalcined undistilled vacuum visa water wire whisker wool yarn yellow / / compound key words: acrylic aluminate arsenide babbitt boride bromide carbide carbonate cermet chloride clad codep cubane cupric cuprous deoxidizer ferric ferrous fluoride fused hydride hydroxide iodide imide manganin mes metallizing nitrate nitride organometallic oxide oxychloride phosphate phosphide salt selenide silicide sulfide sulfate 3d 3-d telluride titanate tungstate vanadate zirconate // elements key words: actinium alumina americium aluminum nitride aluminum oxide aluminum powder antimony powder barium beryllium bismuth powder boron nitride boron carbide calcium chromium powder copper powder germanium glass powder gold powder hafnium powder indium powder iron powder carbonyl iron powder iron oxide lanthanum lithium magnesium powder magnesium oxide manganese powder manganese di oxide molybdenum powder mullite neodymium powder nickel powder nickel oxide palladium powder phosphorus platinum powder potassium rhenium rhodium rubidium ruthenium powder samarium scandium selenium powder silicon powder silicon carbide silicon dioxide silica silicon nitride silver powder silver oxide sodium strontium sulfur tantalum powder tellurium, terbium, thallium, tin powder tin oxide titanium powder titanium carbide titanium diboride titanium dioxide titania titanium nitride titanium oxide tungsten powder tungsten oxide vanadium powder, vanadium oxide, yttrium powder, yttrium oxide, yttria zinc powder zinc dust zinc oxide zirconium powder zirconium oxide zirconia / / mineral key words: anatase baddeleyite barite basalt bauxite bentonite boehmite boric acid boric oxide borax celestite chromite clay colemanite cordierite corundum cristobalite cryolite cuprite diamond diatomaceous earth diatomite diopside dolomite emery enstatite feldspar flint fluorite fluorspar fullers earth galena garnet goethite granite graphite gypsum hematite ilmenite kaolin kyanite lime limestone magnesite magnetite manganite mica micaceous iron oxide mio molybdenite monazite montmorillonite muscovite nickel-iron olivine sand flour perlite petalite pumice pyrite iron pyrite quartz quartzite rock wool rutile sand scheelite sillmanite smectite soapstone spinel spodumene stibnite sulfide sulfate sulfur talc trap rock triploi vermiculite wheat chaff wheat starch wollastonite zeolite zircon sand fluor zirconium silicate / / general key words: aas abrasive acid activated additive aerosol agglomerates air alloy alpha aluminide american amorphous ampoule angstrom argon atomization bar basis bead beta black blending blocks black brazing briquette brown bubble buckyball buckytube calcined can card ceramic chip chop circular clad classification coating cold colloidal commerce commercial composite compound conductive credit crushed cryogenic crystal crystalline cubes custom cylinder dendritic dense density deposition diameter dielectric dimensional disc discontinuous discover disposable distilled doped drop drum dry dust e-commerce electronic electrolytic elemental enriched evaporation express felt fiber filings fine filler flake foam foil food grade frit fullerene fused gamma gas gauze glass grade grain granule granular grignard grinding grit ground heat hexane helium homogenizing hot inch in inert ingot inorganic intermetallic irregular jar j-i-t just leaf liquid lump kanban magnetic massive master media memory mesh metal metallic melted metallic micro micron microcrystalline milling millimeter mineral mm molecule mro nanocrystal nanomaterial nanometer nanophase nanostructure nanotube nanowire natural needle nitrogen nrc oil optical organic packaging particle paste pellets pharmaceutical grade phase pieces planar plasma spray plastic plate platelet polishing polycrystalline polymer porous powder ppm precipitated precious precursor premium pressed pressure printing processing procurement pulverize puratronic pvd pzt quasicrystal radioactive random rapid rare earth reacted reaction reagent rectangular red redistilled reduction refined reinforcement remelted ring rod round screening secure service set shape sheet shot sieve sifting single sink size slug soft solder solid solidification soot sphere spherical spheroidal splinter sponge sputtering sintered sol gel stabilized standard sub sublimed superabrasive super superalloy superconductor synthesis synthetic tablets tabular target tear technical test dust thermal spray thick three thin time toll tpn tube turnings tzm ultrathin un under uncalcined undistilled vacuum visa water wire whisker wool yarn yellow / / compound key words: acrylic aluminate arsenide babbitt boride bromide carbide carbonate cermet chloride clad codep cubane cupric cuprous deoxidizer ferric ferrous fluoride fused hydride hydroxide iodide imide manganin mes metallizing nitrate nitride organometallic oxide oxychloride phosphate phosphide salt selenide silicide sulfide sulfate 3d 3-d telluride titanate tungstate vanadate zirconate // elements key words: actinium alumina americium aluminum nitride aluminum oxide aluminum powder antimony powder barium beryllium bismuth powder boron nitride boron carbide calcium chromium powder copper powder germanium glass powder gold powder hafnium powder indium powder iron powder carbonyl iron powder iron oxide lanthanum lithium magnesium powder magnesium oxide manganese powder manganese di oxide molybdenum powder mullite neodymium powder nickel powder nickel oxide palladium powder phosphorus platinum powder potassium rhenium rhodium rubidium ruthenium powder samarium scandium selenium powder silicon powder silicon carbide silicon dioxide silica silicon nitride silver powder silver oxide sodium strontium sulfur tantalum powder tellurium, terbium, thallium, tin powder tin oxide titanium powder titanium carbide titanium diboride titanium dioxide titania titanium nitride titanium oxide tungsten powder tungsten oxide vanadium powder, vanadium oxide, yttrium powder, yttrium oxide, yttria zinc powder zinc dust zinc oxide zirconium powder zirconium oxide zirconia / / mineral key words: anatase baddeleyite barite basalt bauxite bentonite boehmite boric acid boric oxide borax celestite chromite clay colemanite cordierite corundum cristobalite cryolite cuprite diamond diatomaceous earth diatomite diopside dolomite emery enstatite feldspar flint fluorite fluorspar fullers earth galena garnet goethite granite graphite gypsum hematite ilmenite kaolin kyanite lime limestone magnesite magnetite manganite mica micaceous iron oxide mio molybdenite monazite montmorillonite muscovite nickel-iron olivine sand flour perlite petalite pumice pyrite iron pyrite quartz quartzite rock wool rutile sand scheelite sillmanite smectite soapstone spinel spodumene stibnite sulfide sulfate sulfur talc trap rock triploi vermiculite wheat chaff wheat starch wollastonite zeolite zircon sand fluor zirconium silicate /<A 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Grit Size	3% max. larger than, mcm	50% min. in size range, mcm	94% min. larger than, mcm	Grit Size	3% max. larger than, mcm	50% min. in size range, mcm	94% min. larger than, mcm
F12	2000	N/A	1400	F120	125	N/A	90
F14	1700	N/A	1180	F150	106	N/A	63
F16	1400	N/A	1000	F180	90	N/A	53
F20	1180	N/A	850	F220	75	50.0 - 56.0	45
F24	850	N/A	600	F240	70	42.5 - 46.5	28
F30	410	N/A	500	F280	59	35.0 - 38.0	22
F36	600	N/A	425	F320	49	27.7 - 30.7	16.5
F40	500	N/A	355	F360	40	21.3 - 24.3	12
F46	425	N/A	300	F400	32	16.3 - 18.3	8
F54	355	N/A	250	F500	25	11.8 - 13.8	5
F60	300	N/A	212	F600	19	8.3 - 10.3	3
F70	250	N/A	180	F800	14	5.5 - 7.5	2
F80	212	N/A	150	F1000	10	3.7 - 5.3	1
F90	180	N/A	125	F1200	7	2.5 - 3.5	1
F100	150	N/A	106