overview

The colorimeter uses the principle of photoelectric colorimetry to test the chromaticity of aqueous solutions. This instrument adopts the standards specified in the national standard GB5750

Platinum cobalt colorimetric standard solution is calibrated using (degree) as the unit of measurement for chromaticity. Can be widely used in power plants and purified water

Factories, waterworks, domestic sewage treatment plants, beverage plants, environmental protection departments, industrial water use, liquor industry, pharmaceutical industry, prevention and control

The color measurement of epidemic departments, hospitals and other departments is carried out to meet the prescribed water quality standards.

working conditions

1. Working environment temperature: 5-35 ℃, storage: -20-55 ℃

2. The working environment humidity should not exceed 80% RH

3. Power supply voltage AC 220V 50Hz

4. The instrument should be placed horizontally on a stable laboratory table, effectively avoiding direct light sources. And there is no strong magnetic interference or strong vibration source.

5. There should be no obvious dust or corrosive gases present in the surrounding air.

TECHNICAL INDEX

Measurement principle: Platinum cobalt standard colorimetric method

Quantity range: 0-50 degrees

Basic error: ± 5% F.S

Indication accuracy: 1 degree

Zero drift: ± 1 degree

Repeatability: ≤ 3%

Power supply: 220V/50HZ

Determination of chromaticity of water quality - Platinum cobalt colorimetric method

Water quality termination of color

(GB 11903-89 implemented on July 1, 1990)

This standard specifies two methods for determining color. This standard determines the color of the sample after 15 minutes of clarification.

The pH value has a significant impact on color, and pH value should be measured simultaneously when measuring color. The platinum cobalt colorimetric method refers to the international standard ISO 7887-1985 "Inspection and Determination of Water Color".

The platinum cobalt colorimetric method is suitable for clean water, water with cleanliness pollution and a slight yellow hue, relatively clean surface water, groundwater, and drinking water.

The dilution ratio method is suitable for surface water and industrial wastewater with severe pollution.

Good seed methods should be used independently and generally have no comparability. When the color tone of the sample and the standard solution are inconsistent, this standard is not applicable.