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Large Speedy 2000

Speedy Moisture Tester for roads, aggregates, sand and concrete.

The Speedy 2000 series of moisture testers combines time proven dependability of the pressure test procedure with the convenience of an electric balance. Moisture measurements are obtained by following a simple test procedure: Prepare and ... more

 Special Substrates
Home : Our Principals : LENETA : Special Substrates

Glass Substrates

Carrara* Glass Panels - Approximately 0.25 inch (6mm) thick

Black glass is used in widely referenced high-precision ASTM Method D 2805, and related hiding power test methods. After measuring the reflectance R0 of the dry film, a defined area is scraped from the glass and weighed to obtain the spreading rate or original wet film thickness. Rof the paint film is obtained from a separate test application. The hiding power is then calculated from the appropriate Kubelka-Munk equations found in the ASTM method.

Both black and white glass panels are used in U.S. Federal Test Method 141-4122 and CGSB Method 1-GP-71-14.7 for measuring hiding power. The latter method also provides for direct wet film thickness measurements using a Pfund or Interchemical type of wet film thickness gage, as described in ASTM Method D 1212.

These methods depend on the unique hardness and levelness characteristics of glass substrates. Leneta black glass is much superior in levelness to previously available striated types.

White One Side Striated

Black Unstriated - Blacklite**

Size

Box Quantity

Weight Per Box

Item No.

GW-1A

GB-2A

8 x 8 in
200 x 200 mm

1

2 lb

Item No.

GW-1B

GB-2B

8 x 12 in
200 x 300 mm

1

3 lb

GB-2A GW-1A GW-1B

GB-2B

*Carrara:
Term used originally in referring to the white marble obtained from quarries near the town of Carrara in central Italy; later applied to heavy architectural glass, both black and white.
** Blacklite:

Refers to Leneta type of black Carrara glass

NOTE: Although visually not as opaque as true Carrara Glass, Blacklite Glass has a transmission of less than 1%, making it an adequate substitute for Carrara Glass.

 Printable Version (View: 1921 | Print: 648)

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Special Substrates
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