Method for measuring paint film odor relative light and heavy degree and device thereof

A technique of weight degree and determination method, which is applied in the field of determination of the degree of odor, can solve the problems that it is difficult to judge, the relationship between the degree of odor of latex paint cannot be compared, and the determination of odor cannot be qualitative, etc., and achieves low cost and simple method Effect

Active Publication Date: 2008-02-06
NIPPON PAINT CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

It is especially important that for unknown substances without standard samples, the determination of their odor cannot be qualitative
Latex paint will emit a certain smell after use. It is difficult to determine what kind of substance volatilizes the smell
One of the reasons may be that the raw materials of latex paint used by various manufacturers are not exactly the same, so the relationship between the degree of odor between various latex paints cannot be compared by chromatographic analysis.

Method used

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  • Method for measuring paint film odor relative light and heavy degree and device thereof

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Embodiment Construction

[0030] A kind of relative measuring method of paint film smell of the present invention comprises the following steps:

[0031] 1. Preparation of test materials

[0032] 1) Test samples and comparison samples;

[0033] 2) 3 artificial climate chambers with exactly the same conditions, and the 3 artificial climate chambers are respectively used as sample chamber, comparison chamber and blank chamber;

[0034] 3) coated plate; said coated plate is flat glass with a thickness of 5 millimeters, and the length of this plate is 30 centimeters, and the width is 20 centimeters; the surroundings and corners of the coated plate are polished;

[0035] 4) One low-noise centrifugal fan; the air exchange rate of the centrifugal fan is 4 cubic meters per minute;

[0036] 2. Detection steps

[0037] Under the temperature condition of 23±2℃, the test shall be carried out under the condition of relative humidity of 50%±5%;

[0038] 1) Put activated carbon in the same three cabins as sample ...

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Abstract

The present invention relates to a method of testing odor degrees of lacquer film. The odor relationship between a tested sample and a contrast sample is appraised by the speed of odor attenuation in a give testing cabin, and the times ratio of the contrast sample to the tested sample when the odor fades away completely can be taken as the gauge for the degrees of odor. The method of the present invention is simple with low cost; and can test odor degrees of lacquer film accurately, effectively and in time.

Description

technical field [0001] The invention relates to a method and a device for measuring the degree of odor, in particular to a method and a device for measuring the relative degree of odor of a paint film. Background technique [0002] The existing various latex paints have different odors, and different people have different evaluations of latex paints under living conditions. At present, gas chromatography is usually used in the determination method of volatile organic matter content (TVOC) of latex paint, and its determination needs to prepare and process samples, select a suitable extraction solvent, and need to select suitable chromatographic separation conditions; the analysis time usually requires 1 hour or so. It is especially important that for unknown substances without standard samples, the determination of their odor cannot be qualitative. After the latex paint is used, it will emit a certain smell. It is difficult to judge what kind of substance volatilizes the sm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/00G01N1/28
Inventor 唐磊
Owner NIPPON PAINT CHINA
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