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{"id":1053,"date":"2017-10-20T20:29:02","date_gmt":"2017-10-20T20:29:02","guid":{"rendered":"http:\/\/173.254.28.35\/~lebowcom\/?page_id=1053"},"modified":"2024-12-18T20:28:33","modified_gmt":"2024-12-18T20:28:33","slug":"specifications-2","status":"publish","type":"page","link":"https:\/\/lebowcompany.com\/specifications-2","title":{"rendered":"SPECIFICATIONS"},"content":{"rendered":"\t\t
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Lebow Co., Phone 805-964-7117, E-mail: sales@lebowcompany.com<\/u><\/a><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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LIGHT TIGHTNESS<\/strong><\/span><\/a><\/span><\/p>

MARKING<\/span><\/strong><\/span><\/a><\/p>

MECHANICAL STRENGTH<\/strong><\/span><\/a><\/span><\/p>

METROLOGY<\/strong><\/span><\/a><\/span><\/p>

MOUNTING<\/strong><\/span><\/a><\/span><\/p>

MOUNTING RINGS -Standard<\/strong><\/span><\/a><\/span><\/p>

MOUNTING RINGS-UHV<\/span><\/strong><\/span><\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t

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PACKAGING<\/strong><\/span><\/a><\/span><\/p>

PART NUMBERS<\/strong><\/span><\/a><\/span><\/p>

PRICE CLASS<\/strong><\/span><\/a><\/span><\/p>

PURITY<\/strong><\/span><\/a><\/span><\/p>

SUPPORT – Mesh<\/strong><\/span><\/a><\/span><\/p>

SUPPORT – Parylene<\/strong><\/span><\/a><\/span><\/p>

THICKNESS<\/span> TOLERANCES<\/span><\/strong><\/span><\/a><\/p>

TENSIONED FOILS<\/span><\/strong><\/span><\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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LIGHT TIGHTNESS:\u00a0 <\/strong>Foils of opaque materials (B, C, Ge, Si have low opacity) over 2,000 angstroms in thickness are guaranteed to have a light attenuation of 105<\/sup> (optical density 5.0) or greater.\u00a0 Because most foils are made by thin film processes, these can only be made entirely free of pinholes by using special processes.\u00a0 Many of the thicker foils are rolled and are light-tight.\u00a0 Typical foil has a light attenuation of 105<\/sup>\u00a0 to 107<\/sup> and we are committed to making foil with sufficient light-tightness to meet any experimental requirement.\u00a0 On request, the light leakage of foil can be measured and reported to a sensitivity of 1 part in 109<\/sup> (O.D. 9).\u00a0 Foils sold as vacuum tight have no He leaks larger than 1 x 10-7<\/sup> std cm2<\/sup>\/sec.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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MECHANICAL STRENGTH:\u00a0 <\/strong>We make no claims covering the ability of these foils as windows to support atmospheric pressure.\u00a0 This depends on many factors.\u00a0 We will provide best-effort guidance upon request.\u00a0 Foils as thin as 0.1 micron are used as windows between 10-5<\/sup> and 10-9<\/sup> torr vacuums.\u00a0 Foils used as atmosphere to vacuum windows require exceptionally carefully designed mounts.\u00a0 Even though a foil has no leaks, it may not be strong enough to support 1 atm of pressure over a large aperture.\u00a0 Lebow Company can supply mounted and tested vacuum windows.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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MOUNTING:\u00a0 <\/strong>All foils are quoted mounted on suitable rings (see MOUNTING RINGS in section 7, PART NUMBERS, for Lebow standard ring specifications) with vacuum-compatible adhesives or epoxies.\u00a0 No adhesive of any kind is used on foils under 0.1 micron thick.\u00a0 A range of vacuum compatible adhesives and epoxies, as well as adhesive-free UHV mounts are available to meet special needs.\u00a0 The engineers at Lebow Company will gladly assist you in designing suitable foil mounts for your application.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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SUPPORTS: <\/strong>All foils are available supported for additional strength but supports are optional (all foils made unsupported except for Mg, Pb, Zn and Fluorides) even for foil as thin as 20nm.<\/p>\n

Standard supports are mesh and\/or Parylene N.  Parylene C & D and other plastics, Polycarbonate (Lexan\u00ae), PET (Mylar\u00ae), PTFE (Teflon\u00ae) and Polyimide (Kapton*), are also stocked in a wide range of thicknesses. <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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SUPPORT – MESH:<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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Standard:<\/strong><\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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PITCH <\/td>LPI <\/td>SPACE <\/td>BAR <\/td>TRANSMISSION <\/td>MATERIAL <\/td><\/tr>
0.36mm <\/td>70 LPI* <\/td>340\u00b5 <\/td>18\u00b5 <\/td>86% <\/td>5\u00b5 Ni, Electroformed <\/td><\/tr><\/tbody><\/table><\/div>WordPress Responsive Table<\/a><\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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Other Stock – Mesh:
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PITCH <\/td>LPI <\/td>SPACE <\/td>BAR <\/td>TRANSMISSION <\/td>MATERIAL <\/td><\/tr>
33\u00b5 <\/td>750 LPI* <\/td>25\u00b5 <\/td>10\u00b5 <\/td>55% <\/td>5\u00b5 Ni, Electroformed <\/td><\/tr>
86\u00b5 <\/td>300 LPI* <\/td>66\u00b5 <\/td>19\u00b5 <\/td>61% <\/td>5\u00b5 Ni, Electroformed <\/td><\/tr>
86\u00b5 <\/td>300 LPI* <\/td>66\u00b5 <\/td>19\u00b5 <\/td>61% <\/td>5\u00b5 Cu, Electroformed <\/td><\/tr>
0.13mm <\/td>200 LPI* <\/td>112\u00b5 <\/td>14\u00b5 <\/td>78% <\/td>5\u00b5 Ni, Electroformed <\/td><\/tr>
0.36mm <\/td>70 LPI* <\/td>344\u00b5 <\/td>19\u00b5 <\/td>86% <\/td>5\u00b5 Cu, Electroformed <\/td><\/tr>
0.65mm <\/td>40 LPI* <\/td>0.48mm <\/td>0.16mm <\/td>56% <\/td>5\u00b5 Ni, Electroformed <\/td><\/tr>
0.85mm <\/td>30 LPI* <\/td>0.80mm <\/td>0.043mm <\/td>90% <\/td>5\u00b5 Ni, Electroformed <\/td><\/tr>
1.04mm <\/td>25 LPI* <\/td>0.94mm <\/td>0.079mm <\/td>85% <\/td>5\u00b5 Ni, Electroformed <\/td><\/tr>
1.27mm <\/td>20 LPI* <\/td>1.18mm <\/td>0.092mm <\/td>86% <\/td>5\u00b5 Ni, Electroformed <\/td><\/tr>
1.6mm <\/td>15 LPI* <\/td>1.56mm <\/td>0.14mm <\/td>85% <\/td>5\u00b5 Ni, Electroformed <\/td><\/tr>
2.5mm <\/td>10 LPI* <\/td>2.37mm <\/td>0.17mm <\/td>87% <\/td>5\u00b5 Ni, Electroformed <\/td><\/tr>
2.5mm <\/td>10 LPI* <\/td>2.37mm <\/td>0.17mm <\/td>87% <\/td>20\u00b5 Stainless, Etched <\/td><\/tr><\/tbody><\/table><\/div>WordPress Responsive Table<\/a><\/p>
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High attenuation mesh – Wavelength independent attenuation for high flux applications<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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MESH TRANSMISSION <\/td>PITCH <\/td>LPI <\/td>HOLE <\/td>MATERIAL <\/td><\/tr>
1.4% <\/td>0.56mm <\/td>45 LPI <\/td>0.18mm <\/td>2 layers of 12% transmission <\/td><\/tr>
12% <\/td>0.56mm <\/td>45 LPI <\/td>0.18mm <\/td>0.2mm 316 stainless steel <\/td><\/tr>
25% <\/td>0.394mm <\/td>64 LPI <\/td>0.23mm <\/td>0.2mm 316 stainless steel <\/td><\/tr>
50% <\/td>0.73mm <\/td>34 LPI <\/td>Space 0.53mm <\/td>0.2mm Expanded 304 stainless <\/td><\/tr>
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Transmission is nominal.\u00a0 Actual transmission will be labeled.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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SUPPORT-PARYLENE N:<\/strong>(-C8<\/sub>H8-<\/sub>), density 1.1
Stock Thicknesses:

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0.1\u00b5 <\/td>1.35\u00b5 <\/td>5.0\u00b5 <\/td>15.0\u00b5 <\/td><\/tr>
0.2\u00b5 <\/td>1.5\u00b5 <\/td>6.0\u00b5 <\/td><\/td><\/tr>
0.5\u00b5 <\/td>2.0\u00b5 <\/td>7.5\u00b5 <\/td><\/td><\/tr>
0.75\u00b5 <\/td>2.5\u00b5 <\/td>10.0\u00b5 <\/td><\/td><\/tr>
1.0\u00b5 <\/td>3.0\u00b5 <\/td>13.5\u00b5 <\/td><\/td><\/tr><\/tbody><\/table><\/div>WordPress Responsive Table<\/a><\/p>

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Lebow Company is capable of making very large Parylene N filters.\u00a0 The pictured 1.0 micron Parylene N filter is 150mm diameter.<\/h3>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t
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TENSIONED FOILS<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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Occasional experiments must focus on the entire foil area, reflect a beam off the foil, or involve ultrafast events over the entire foil area.\u00a0 These experiments will benefit from tensioned flat foil.\u00a0 Tensioned foil for most materials over 0.5\u00b5 thick can be made.\u00a0 This foil is significantly more costly and requires epoxy mounting on special rings.<\/h3>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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PURITY:<\/strong><\/p>

The purest practical material is used in all foil and the purity for total metal impurities is indicated.\u00a0 Detailed material pedigrees and lot or individual foil analysis are available at a nominal fee.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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THICKNESS TOLERANCE:<\/strong><\/p>

\u00b110% standard; closer tolerances are available upon request.\u00a0 We can supply exact lot or individual foil measurement of the mechanical thickness, weight\/unit area or the apparent thickness by alpha energy loss as required for a nominal fee.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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PART NUMBERS:<\/strong><\/p>

Our part numbers are descriptive, therefore, long, allowing an accurate identification of the required foil assembly.<\/p>

Example: 0.5 (thickness)-Ti (material)-P1k (support)-L1.34 (mounting\/size)<\/p>

THICKNESS in microns (0.5)<\/p>

1 micron (\u00b5) = 0.001mm = 1,000nm = 10,000 Angstrom (\u00c5).
0.001 inches = 25.4 microns<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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MATERIAL indicated by chemical symbol for the element (Example: Ti).<\/p>

SUPPORT:<\/p>

0\u00a0\u00a0 –\u00a0\u00a0 Unsupported
P\u00a0\u00a0 –\u00a0\u00a0 Parylene-N supported, 0.1\u00b5 (Example: P1K)
M\u00a0\u00a0 –\u00a0\u00a0 Nickel Mesh, 5 microns thick, 86% transmission, 36 micron pitch (70 lines\/inch).\u00a0 Cu mesh and other mesh pitches are available from stock.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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MOUNTING\/SIZE:<\/p>

Specifies the mounting ring (L1.34, Lebow 1.34cm I.D.) and foil size.\u00a0 Foils are mounted to cover only the unsupported area only and needed margin for adhesive on Lebow rings, customer designed rings, or customer supplied rings.\u00a0 Lebow is able to fabricate rings to customer drawings and regularly supplies complete foil assemblies for inclusion in instruments.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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L\u00a0 – LEBOW STANDARD machined rings with beveled edge hole, 304 stainless steel, without mounting holes.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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<\/div>
<\/th><\/th><\/th><\/th><\/tr><\/thead>
RING SIZE <\/td>APERTURE <\/td>OUTSIDE DIAMETER <\/td>THICKNESS <\/td><\/tr>
L0.5 <\/td>5.0mm <\/td>17.0mm <\/td>1.5mm <\/td><\/tr>
L1.0 <\/td>10.0mm <\/td>17.0mm <\/td>1.5mm <\/td><\/tr>
L1.34 <\/td>13.4mm <\/td>22.3mm <\/td>1.7mm <\/td><\/tr>
L1.5 <\/td>15.0mm <\/td>25.0mm <\/td>1.7mm <\/td><\/tr>
L2.0 <\/td>20.0mm <\/td>30.0mm <\/td>1.7mm <\/td><\/tr>
L2.54 <\/td>25.4mm <\/td>38.1mm <\/td>1.7mm <\/td><\/tr>
L3.0 <\/td>30.0mm <\/td>40.0mm <\/td>1.7mm <\/td><\/tr>
L3.27 <\/td>32.7mm <\/td>45.0mm <\/td>1.7mm <\/td><\/tr>
L4.0 <\/td>40.0mm <\/td>60.0mm <\/td>1.7mm <\/td><\/tr><\/tbody><\/table><\/div>WordPress Responsive Table<\/a>
Tolerance: +\/-0.1mm<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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LS-LEBOW STARDARD UHV SANDWICH rings are designed for UHV applications where no adhesives or epoxy can be tolerated.\u00a0 They are made of 304 stainless and baked at 300\u00baC in high vacuum.\u00a0 LS rings cannot normally be used with mesh supported foil or B, Be, Ge, or Si over about 0.5 microns thick because organic adhesives are required.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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\u00a0<\/p>

\u00a0<\/p>

UHV Sandwich mounted Al foil.\u00a0 The UHV rings are vacuum baked before mounting the foil at 300\u00baC and are completely organic free.<\/h3>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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<\/div>
<\/th><\/th><\/th><\/th><\/th><\/th><\/tr><\/thead>
RING SIZE <\/td>APERTURE <\/td>OUTSIDE DIAMETER <\/td>THICKNESS <\/td>HOLE CIRCLE <\/td>SCREWS <\/td><\/tr>
LS0.5 <\/td>5.0mm <\/td>17.0mm <\/td>3.0mm <\/td>14.3mm <\/td>2 <\/td><\/tr>
LS1.0 <\/td>10.0mm <\/td>17.0mm <\/td>3.0mm <\/td>14.3mm <\/td>2 <\/td><\/tr>
LS1.34 <\/td>13.4mm <\/td>22.3mm <\/td>3.4mm <\/td>19.5mm <\/td>3 <\/td><\/tr>
LS1.5 <\/td>15.0mm <\/td>25.0mm <\/td>3.4mm <\/td>21.7mm <\/td>3 <\/td><\/tr>
LS2.0 <\/td>20.0mm <\/td>30.0mm <\/td>3.4mm <\/td>26.7mm <\/td>3 <\/td><\/tr>
LS2.54 <\/td>25.4mm <\/td>38.1mm <\/td>3.4mm <\/td>34.8mm <\/td>4 <\/td><\/tr>
LS3.0 <\/td>30.0mm <\/td>40.0mm <\/td>3.4mm <\/td>36.7mm <\/td>4 <\/td><\/tr>
LS4.0 <\/td>40.0mm <\/td>60.0mm <\/td>3.4mm <\/td>53.4mm <\/td>6 <\/td><\/tr><\/tbody><\/table><\/div>WordPress Responsive Table<\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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C-CUSTOMER supplied mounting rings: Machined rings 0.5mm or more thick with a minimum 5.0mm width for foil bonding are preferred.\u00a0 Rings must be made of stainless steel or other low expansion material if the foil will be heated or baked.\u00a0 Aluminum rings are suitable only for aluminum or similar foil.\u00a0 User supplied rings in quantities of over 10 should be approved before your order is placed.\u00a0 Specify these as C followed by the inside diameter (or diagonal), i.e., C2.54mm or C1inch for a 1 inch customer supplied ring.\u00a0 Extra charges may apply for difficult rings.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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V-VAT RINGS to fit VAT 01032-UE(or CE)**-X (X =window) mini UHV gate valves (DIN 25, 40 & 50) with window, edge threaded, are in stock with 10mm and 15mm inside diameter.\u00a0 Adapters, to allow using L1.0 rings in VAT valves, can also be supplied<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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PACKAGING – <\/strong>Foils are individually packed in plastic vials or plastic boxes.\u00a0 These are reliable shipping containers but are not intended for long-term storage.\u00a0 Most thin metal foils oxidize and all should be stored under an inert atmosphere or vacuum.\u00a0 Readily oxidized materials are shipped under dry nitrogen.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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\u00a0<\/p>

\u00a0<\/p>

\u00a0<\/p>

A standard Lebow Company shipping vial containing a mounted filter.<\/h3>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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MARKING – <\/strong>All foils are marked on the ring with the foil material and lot number in low volatility ink.\u00a0 Foil rings can be supplied without marking or with scribed markings as required.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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PRICE CLASS –<\/strong> This is our method of denoting the fabrication difficulty and is the price indicator.
Class 1<\/strong><\/span> – Economical, readily fabricated.\u00a0 Sizes limited by equipment to 200mm.
Class 2<\/strong><\/span> – Moderately priced, reliably fabricatable.\u00a0 Maximum size 100mm, larger for some materials.
Class 3<\/strong><\/span> – Challenging, can be fabricated into top quality foils.\u00a0 Maximum size, 50mm, larger for some materials.
Class 4<\/strong><\/span> – Difficult materials, the fabrications of which may offer major technical challenge.\u00a0 Our experience with these materials indicates that occasional closed cracks or a tiny patch may be unavoidable.\u00a0 Limited to 15-25mm, occasionally larger.
2 or 3 x Class 4<\/strong><\/span> – Foil requiring extraordinary technology with significant technical risk.\u00a0 This foil is so difficult to make that it is effectively offered on a “Best Effort” basis.\u00a0 The B foil manufacturing process is particularly unstable.\u00a0 Size limits, 10-15mm.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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METROLOGY<\/strong><\/p>

  1. MICROBALANCE 30 gm capacity, 1 microgram resolution.<\/li>
  2. ALPHA SPECTROMETER .1-10 micron, .05 micron resolution.<\/li>
  3. ULTRA MICROMETER 100 micron capacity, 1%\/0.02 micron resolution.<\/li>
  4. OPTICAL DENSITOMETER 1 part in 109<\/sup>.<\/li><\/ol>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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    RoHS declaration: <\/strong>Our foils do not contain, unless specified as an ingredient, Pb, Cd, Hg and generally contain little or no organics.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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    Registered trademarks: Parylene N, Union Carbide, Kapton, Mylar and Teflon Dupont<\/strong><\/h5>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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    Lebow Co., Phone 805-964-7117, E-mail: sales@lebowcompany.com<\/u><\/a><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"

    Lebow Co., Phone 805-964-7117, E-mail: sales@lebowcompany.com LIGHT TIGHTNESS MARKING MECHANICAL STRENGTH METROLOGY MOUNTING MOUNTING RINGS -Standard MOUNTING RINGS-UHV PACKAGING PART NUMBERS PRICE CLASS PURITY SUPPORT – Mesh SUPPORT – Parylene THICKNESS TOLERANCES TENSIONED FOILS LIGHT TIGHTNESS:\u00a0 Foils of opaque materials (B, C, Ge, Si have low opacity) over 2,000 angstroms in thickness are guaranteed to…<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-1053","page","type-page","status-publish","hentry"],"yoast_head":"\nSPECIFICATIONS - LEBOW<\/title>\n<meta name=\"description\" content=\"Lebow offers specified information on foil filter properties such as standard Lebow rings, support mesh, light tightness, among other specifications\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/lebowcompany.com\/specifications-2\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"SPECIFICATIONS - 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