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Friday, July 20th, 2018  
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Fume Filtration

Conventional ducted fume hoods provide safety to laboratory personnel by drawing air across a front opening in the hood at a controlled rate, thus preventing any toxic vapours generated during the experimental procedure from escaping into the general laboratory environment. Air is then exhausted via a fan system to the ... more

 Sealed Charts & Cards
Home : Our Principals : LENETA : Sealed Charts & Cards

Checkerboard Charts / Spreading Rate Charts

One of the earliest hiding power test surfaces was linoleum with a black and white checkerboard pattern. This was soon replaced by sealed paperboard charts of which Forms 10H and 10H-BG Spreading Rate Charts are typical examples. Designed for brushout tests at specified spreading rates such as in ASTM Method D 344 and Canadian 1-GP-71, they are also used for drawdown applications like their smaller counterparts Forms 10A and 10B. Black and gray squares in Form 10H-BG provide reduced contrast for testing coatings with lower hiding power.

Spreading Rate Charts

Design Area = 1.076 ft2 (1000 cm2

Form 10A 5-1/2 x 10 in 140 x 254 mm Design Area = 275 cm2 Form 10B 7-5/8 x 11-3/8 in 194 x 289 mm Design Area = 425 cm Form 10H 11-1/4 x 17-1/4 in 286 x 438 mm
Form 10H-BG
11-1/4 x 17-1/4 in
286 x 438 mm

 Printable Version (View: 1910 | Print: 620)

Opacity Charts
Penopac and Penetration Charts
Display Charts / Spreading Rate Charts
Opacity-Display Charts / Spreading Rate Charts

Spreading Rate Charts
Duplex Applicator Charts
Brushout Cards
Plain White Cards / Plain White Charts
Plain Black Charts

Application Equipment
Metal Panels
Printing Ink & Paper
Sag & Laveling
Scrub Resistance
Sealed Charts & Cards
Special Substrates
Unsealed Test Charts
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