What is the odor level
It is to standardize the smell of sports flooring
The odor level is divided into five levels
Level 2: slight odor, but can be felt
Level 4: strong uncomfortable smell
Odor level requirements
The odor level is required in item 5.6 of the new national standard
The odor level should be lower than 3
It has smell but no strong discomfort
Why does it smell uncomfortable
In the whole process of laying the moving flooring
The main sources of uncomfortable smell are as follows
The following aspects
1. The odor of raw materials such as inferior granules
2. Choose odorous solvents such as xylene
3. The glue contains aromatic hydrocarbon and other substances
Odor grade evaluation
The actual thickness of 20mmx50mmx is required
The size of the sample block was stored at 60 ℃ in a constant temperature and humidity box
After 2 hours, take it out for cooling and test
The test was conducted with a professional license
Sniffer
The odor level should be expressed as an integer
It can also be used if necessary
Importance of odor level
For the public
What happened to the drug runway
A lot of social emotions and shadows
Compared with professionals
How many parents judge the track
Is whether there is uncomfortable gas in the hot sun
At the same time, according to the survey feedback of the Ministry of education
A lot of acute injuries in the poison track
It's xylene, toluene
Toxic symptoms of polycyclic aromatic hydrocarbons, etc
And one of their common characteristics is smell
A qualified runway product needs
Give the public a comfortable sports environment
Therefore, it is very important to control the odor level
——To be continued——
In this issue, we share odor levels
So what's behind it
It is also the most important part of the new national standard
The most changed part
The chemical part
Coming soon, please look forward to it