| Hummel Croton Inc. has been in business since 1913 supplying specialty and custom manufactured
chemicals to meet our customer’s demands. We have the capability of meeting government
specifications for most of the products in this catalog. We have the capacity to produce
pilot plant to truckload quantities of specialty chemicals. We invite your inquires.
Our Production Equipment List includes:
- Glass lined Reactors
- Stainless Steel Reactors
- Stainless Steel and Carbon Steel Blenders
- Vacuum Drying Equipment
- Stainless Steel Tray Driers
- Stainless Steel Milling and Grinding Equipment
- Stainless Steel Screening Equipment
Our in-house laboratory has the expertise to perform most wet chemical analysis along with
some instrumental analysis. Our testing equipment includes.
- Metler Balances
- Perkin-Elmer Atomic Absorption
- Metler Automatic Titrator
- Metler Karl Fisher Titrator
- Perkin-Elmer HPLC
- W.S. Tyler Ro-Tap
- Corning pH meters
- Fisher Sub-Sieve Sizer
Custom milling, blending and screening of our product and yours are available at a reasonable
cost. Your special mesh requirements on many of the products in this catalog are available at
an extra cost.
Items prepared to customers’ specifications, government specifications and the like, require
substantial lead times for either procurement or manufacturing of raw materials. These raw
materials also require special processing and testing for conformance to these specifications.
Please allow sufficient time in the ordering procedure.
Screen Size & U.S. Standard Sieve Openings
|
| | Mesh | Microns | Inch |
| | 4 | 4760 | 0.187 |
| | 6 | 3360 | 0.132 |
| | 8 | 2380 | 0.0937 |
| | 12 | 1680 | 0.0661 |
| | 16 | 1190 | 0.0469 |
| | 20 | 840 | 0.0331 |
| | 30 | 590 | 0.0232 |
| | 40 | 420 | 0.0165 |
| | 50 | 297 | 0.0117 |
| | 60 | 250 | 0.0098 |
| | 70 | 210 | 0.0083 |
| | 80 | 177 | 0.007 |
| | 100 | 149 | 0.0059 |
| | 120 | 125 | 0.0049 |
| | 140 | 105 | 0.0041 |
| | 170 | 88 | 0.0035 |
| | 200 | 74 | 0.0029 |
| | 230 | 62 | 0.0024 |
| | 270 | 53 | 0.0021 |
| | 325 | 44 | 0.0017 |
| | 400 | 37 | 0.0014 |
|
Sieving results are expressed in terms of "mesh". A minus (-)before the number indicates
material passing "through" a screen. A plus (+) before the number means "retained" on a
screen. For example, "50% -200 +325" means 50% by weight of the material passes through a
200 mesh screen but are retained on a +325 mesh screen or 95%-100 means 95% by weight of
the material passes through a 100 mesh sieve.
Screen analysis is of particular importance when using powdered, atomized or granular aluminum
for pyrotechnic manufacture. As a general rule the following expressions classify aluminum
screen analysis:
COARSE................. 4 to 30 MESH
MEDIUM................. 30 to 80 MESH
FINE................... 80 to 120 MESH
Other definitions for coarse, medium, fine and extra fine:
COARSE.................. 40 to 50 MESH
MEDIUM.................. 50 to 100 MESH
FINE.................... 100 to 200 MESH
EXTRA FINE.............. 200 MESH AND DOWN
Please accept our appreciation and sincere thanks for letting us serve you. Sometimes,
in the rush of business life we fail to say thank you loud enough. But you can be sure your
patronage is never, never taken for granted. Our aim is to please and satisfy. To serve you
is a real privilege and a pleasure.
SERVICE TO GOVERMENT AND INDUSTRY SINCE 1913 |
