This instrument is suitable for the determination of light stability of paraffin wax, fully refined paraffin wax and semi-refined paraffin wax for food, in line with SH/T0404 standard.
1. Method outline
The sample plate filled with melted wax was placed in a constant greenhouse and irradiated for 45 minutes under the conditions of ultraviolet illumination of 12.0± 0.3mW /cm2 and temperature of 90±1℃, then the color of the sample was determined. The color number indicates the light stability of paraffin wax.
II. Main technical parameters
Model specification: JSB0802
Irradiation temperature: 90±1℃
Main engine power: 0.5KW
Mercury lamp power: 375W
Working power supply: AC220± 10% 50Hz
Dimensions: 610×440×475mm (L × W × H)
Heavy quantity: 10 kg
3. Performance and characteristics
1. The instrument is controlled by computer, which can automatically control the irradiance of ultraviolet lamp by means of irradiation intensity, and record the working curve of irradiance and temperature for users to observe its changing trend.
2, The instrument adopts imported temperature controller to control the temperature, with high precision, intuitive and simple operation.
3. The instrument has an observation window and an anti-ultraviolet film, which can effectively prevent ultraviolet leakage and facilitate observation.