Kon Corporation, a leading company of Photocatalyst Technology for clean earth.

Anti-microbial Power

ANTI-MICROBIAL POWER

Test Report of Antimicrobial power
Date:October 29th,2004
Client:Kon Corporation

Kyoto Biseibutsu Kenkyusho,a specified laboratory by Japanese Ministry of Health Labor and Welfare Hygiene 650th,certifies that the test results described below are true.

Laboratory:Kyoto Biseibutsu Kenkyusho
Address:16-2 Kubo-cho,Kamikazan Yamashina-ku,Kyoto 607-8464
Examiner:Ryosuke Matsuura

1.Supplied test product:TiO2 photocatalyst ceramic tiles
2.Test purpose:Evaluation of Antimicrobial power
3.Test method:Film contact method on optical irradiation
An anitimicrobial power was determined by "Film contact method on optical irradiation" of SIAA(Society of Industrial-Technology for Antimicrobial Articles)
4.Bacteria:Escherichia coil NBRC-3972 Staphylococcus IFO-12732

Bacteria numbers on coated tile with TPX-85

Bacteria name Number of live bacteria
Initial number 24 hours-1 24 hours-2 Average number
E.coli 3.3×105 <10 <10 <10
St.aureus 3.2×105 <10 <10 <10

Bacteria numbers on non coated tile with TPX-85

Bacteria name Number of live bacteria
Initial number 24 hours-1 24 hours-2 Average number
E.coil 3.3×105 <10 <10 <10
St.aureus 3.2×105 <10 <10 <10