US STANDARD
MILLIMETERS
QTY
ASTM E 11 
DESIGNATION
1) FIRST SELECT A SIEVE RIM MATERIAL
2) NEXT SELECT A SIEVE RIM DIAMETER OR L/W
3) FOR WIRE MESH SIEVES SELECT A SIEVING MEDIUM
4)  SELECT THE HEIGHT   (FULL HEIGHT STANDARD)
WIRE MESH SIEVES 
HANDY SIEVE CONVERSION CHART
5.00 inch            125 mm
ISO ONLY           112 mm
4.24 inch            106 mm
4.00 inch            100 mm
3.50 inch              90 mm
ISO ONLY             80 mm
3.00 inch              75 mm
ISO ONLY             71 mm
2.50 inch              63 mm
2.12 inch               53 mm
2.0 inch                50 mm
1.75 inch              45 mm
ISO ONLY             40 mm
1.50 inch           37.5 mm
ISO ONLY             56 mm
ISO ONLY          35.5 mm
1.25 inch           31.5 mm
ISO ONLY             28 mm
1.06 inch           26.5 mm
1.00 inch              25 mm
1/8 inch             22.4 mm
ISO ONLY             20 mm
3/4 inch                19 mm
ISO ONLY             18 mm
5/8 inch                16 mm
ISO ONLY             14 mm
.530 inch           13.2 mm
1/2 inch             12.5 mm
7/16 inch           11.2 mm
ISO ONLY             10 mm
3/8 inch               9.5 mm
ISO ONLY               9 mm
5/16 inch                8 mm
ISO ONLY            7.1 mm
.0265 inch           6.7 mm
1/4 inch               6.3 mm
NO. 3.5                5.6 mm
ISO ONLY               5 mm
ISO ONLY            2.5 mm
ISO ONLY            4.5 mm
ISO ONLY          3.55 mm
ISO ONLY          2.24 mm
ISO ONLY          3.15 mm
NO. 4                 4.75 mm
NO. 5                      4 mm
NO. 6                 3.35 mm
NO. 7                   2.8 mm
NO. 8                  2.36 mm
NO. 10                    2 mm
ISO ONLY            1.8 mm
NO. 12                 1.7 mm
ISO ONLY            1.6 mm
NO. 14                 1.4 mm
ISO ONLY          1.25 mm
NO. 16               1.18 mm
ISO ONLY          1.12 mm
NO. 18                    1 mm
ISO ONLY          .900 mm
NO. 20               .850 mm
ISO ONLY          .800 mm
NO. 25               .710 mm
ISO ONLY          .630 mm
NO. 30               .600 mm
ISO ONLY          .560 mm
NO. 35               .500 mm
ISO ONLY          .450 mm
NO. 40               .425 mm
ISO ONLY          .400 mm
NO. 45               .355 mm
ISO ONLY          .315 mm
NO. 50               .300 mm
ISO ONLY          .280 mm
NO. 60               .250 mm
ISO ONLY          .224 mm
NO. 70               .212 mm
ISO ONLY          .200 mm
NO. 80               .180 mm
ISO ONLY          .160 mm
NO. 100             .150 mm
ISO ONLY          .140 mm
NO. 120             .125 mm
ISO ONLY          .112 mm
NO. 140             .106 mm
ISO ONLY          .100 mm
NO. 170             .090 mm
ISO ONLY          .080 mm
NO. 200             .075 mm
ISO ONLY          .071 mm
NO. 230             .063 mm
ISO ONLY          .056 mm
NO. 270             .053 mm
ISO ONLY          .050 mm
NO. 325             .045 mm
ISO ONLY          .040 mm
NO. 400             .038 mm
ISO ONLY          .036 mm
NO. 450             .032 mm
NO. 500             .025 mm
NO. 635             .020 mm
QTY
ASTM E 11 
DESIGNATION
US STANDARD
MILLIMETERS
OTHER DIAMETER
5) SELECT QUANTITY & APERTURE SIZE FROM BELOW CHART
64th INCH PERFORATED PLATE AGRICULTURAL SIEVE APERTURES
30          64th inch
29          64th inch
28          64th inch
27          64th inch
26          64th inch
25          64th inch
24          64th inch
23          64th inch
22          64th inch
21          64th inch
20          64th inch
19          64th inch
18          64th inch
17          64th inch
16          64th inch
15          64th inch
14          64th inch
13          64th inch
12          64th inch
11          64th inch
10          64th inch
09          64th inch
08          64th inch
QTY      64th" Aperture
QTY      64th" Aperture
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LABORATORY TEST SIEVES
BRASS RIM- LESS EXPENSIVE-NOT AS RIGID AS STEEL
                        SLIGHT TARNISHING
STAINLESS STEEL RIM- MORE DURABLE-NO TARNISHING
ACRYLIC RIM- FOR USE WITH SONIC SIFTER ONLY
SIEVE CALIBRATION BEADS
WOOD SQUARE FRAME- FOR HAND SORTING 
                                             GREEN  COFFEE BEANS
SIEVE PACKAGES
100 mm COFFEE GRIND SET  HH


COMPLETE SET STANDARD COFFEE GRIND SIEVES INCLUDING ASTM 12,16,20,30,40,50, LID RECEIVING PAN 100 mm DIAMETER STAINLESS STEEL RIM & MESH HALF HEIGHT
8 INCH BRASS RIM COFFEE GRIND SET FH
(FOR 8 INCH SIEVE SHAKERS)

COMPLETE SET STANDARD COFFEE GRIND SIEVES INCLUDING ASTM 12,16,20,30,40,50, LID RECEIVING PAN 8 INCH DIAMETER STAINLESS STEEL RIM & MESH FULL HEIGHT
8 INCH COFFEE GRIND SET HH
(RUN 2 SAMPLES SIMULTANEOUSLY)

(FOR 8 INCH SIEVE SHAKERS)
COMPLETE SET STANDARD COFFEE GRIND SIEVES INCLUDING 2 EA ASTM 12,16,20,30,40,50, (1) LID (1) RECEIVING PAN FH (1) INTERMEDIATE RECEIVING PAN HH
8 INCH DIAMETER STAINLESS STEEL RIM & MESH HALF HEIGHT
12 INCH SQUARE WOODEN HAND SCREEN SET   
(FOR COFFEE BEAN GRADING)

COMPLETE SET STANDARD COFFEE BEAN GRADING SIEVES INCLUDING SIZES 10 THROUGH 20 in /64th" INCREMENTS, AND RECEIVING PAN
SPECIAL
Stainless Steel Mesh ASTM E-11/ ISO 3310 Compliance Grade
Stainless Steel Mesh ASTM E-11/ ISO 3310  Inspection Grade
Stainless Steel Mesh ASTM E-11 /ISO 3310 Calibration Grade
100 mm COFFEE GRIND SET  HH
(FOR L3P SONIC SIFTER)

COMPLETE SET STANDARD COFFEE GRIND SIEVES INCLUDING ASTM 12,16,20,30,40,50,  100 mm DIAMETER ACRYLIC RIM SS MESH HALF HEIGHT
​Laboratory test sieves in the coffee industry are used to measure coffee grind size, and coffee bean size. Older reports use Tyler Sieve Mesh Designations, and need to be converted to ASTM or ISO Mesh Designations, before being communicated to anyone.

Coffee Bean Grading Sieves, also have a very similar numbering system, but refer to round hole perforations in 64th" Increments.
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