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A test specimen together with blue wool standards is exposed to the light from a MBTL fading Lamp. The Colour Fastness of the specimen is assessed by comparing its fastness with that of 1 – 8 Blue Wool Standards. |
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The unit consists of a hollow cylinder of metal open at both ends with an internal diameter of 18” and length of 18”. A 500 W MBTL fading lamp is mounted centrally so that the light distribution is constant around the circumference. An hour meter with buzzer and hour totalizer are mounted on the base. Four specimen holders are installed at equidistance in inner circumference of cylinder alongwith metal sheet mask to cover half of each test specimen and the standards. As temperature may touch 800 C constant cooling arrangement with water flow is provided. A horizontal pump and water tank are included in scope of supply. |
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Testing Standards Required :: |
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1 to 8 Blue Wool Light Fastness Standard of ISO. |
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Grey Scale of Change in Colour of ISO. |
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| “HIROSHIMA” Light Fastness Tester comprises of : |
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MBTL Lamp |
: 1 No. |
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Specimen Holder |
: 4 Nos. |
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Test Tube Holder for Humidity Control |
: 50 Nos. |
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Water Tank |
: 1 No. |
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Pump |
: 1 No. |
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Hour Meter with Buzzer |
: 1 No. |
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Voltage Stabilizer |
: 1 No. |
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Potassium Carbonate |
: 500 gms. (1 Box) |
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Grey Scale for Change in Colour |
: 1 No. |
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Blue Wool Standards |
: 1 to 8. |
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| Related Standards : |
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Australian Standard : |
AS 2001.4.2 |
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