Leneta Test Charts

Penopac & Penetration Charts

Penopac Charts
These combine the test areas and functions of a penetration and an opacity chart. They can be considered as universal test charts for research, development and quality control. The choices offered in size and design are responsive to individual laboratory needs and preferences. Form 19BR includes an unlacquered black area, but is otherwise equivalent in functionality.

Penetration Chart
An important characteristic of architectural finishes is the ability to maintain a uniform appearance on surfaces of varying porosity. This ability, of which gloss and colour uniformity are specific aspects, is referred to as penetration resistance. The adjacent sealed/ unsealed areas of Leneta Form HK present severe conditions of varying porosity for testing penetration resistance. In addition to qualitative visual observations, photometric measurements on the two areas provide objective numerical values.

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Form 1A 5-1/2 x 10 in 140 x 254 mm	Form 18A 5-1/2 x 10 in 140 x 254 mm	Form 1B 7-5/8 x 11-3/8 in 194 x 289 mm	Form 18B 7-5/8 x 11-3/8 in 194 x 289 mm	Form 19BR 7-5/8 x 11-3/8 in 194 x 289 mm	Form HK 8-5/8 x 11-1/4 in 219 x 286 mm