Whiteness Tester

Product Code: YQ-Z-48B

Description

Application:

YQ-Z-48B Whiteness Tester is widely used to determine the whiteness of diversified objects such as paper and board, pulps and chemical fiber, textile, plastic, ceramic, enamel, fecula, salt, white cerement, porcelain clay, and French chalk, etc. It can also be used to determine the optical performance of sheet materials, for example, opacity test.

Standards:

ISO 2470, 2471,3688

GB T 3978, 7973, 7974, 1543, 2679.1, 10339, 12911,22427.6.5950

JJG48-2000

GB 2913, 13025.2

Features:

This machine is used to measure the Blue Reflectance Factor (R457) of samples, analyze the sample to find out whether it contains any fluorescent brightener and also measure the opacity, transparency, light scattering coefficient, and light absorbing coefficient.
It adopts micro-computer control, with test data statistics and processing function, can test whiteness (brightness) of all kinds of objects.
Can test for several times and give an arithmetic mean of the test results.
With power-off protection function.

Technical Specification:
Model	YQ-Z-48B
Observation condition	D65
Illumination and observation system	d/0
Zero drift	≤0.1%
Indication drift	≤0.1%
Indication error	≤0.5%
Repeatability error	≤0.1%
Specular reflectance error	≤0.1%
Sample size	Test area:≥Ø3 0mm
Sample size	Thickness:≤Ø40mm
Test time	7s
Power supply	AC220V+10%, 50Hz
Operation environment	Temperature: 0~40°C Humidity: <80%RH
Dimensions	365mmx260mmx425mm (LxWxH)
Weight	11kg

Standard Configuration:
No.	Item	Quantity
1.	Main machine	1 set
2.	Quality certificate	1 pc
3.	User manual	1 pc
4.	Packing list	1 pc