Introduction of PAHs polycyclic aromatic hydrocarbons
PAHs ( polycyclic aromatic hydrocarbons ) are also known as: Polyaromates, Polyaromatic Hydrocarbons . ( Polycyclic aromatic hydrocarbons PAHs) is a type of chemical substance formed when coal, oil, gas, wood, garbage or other organic matter is incompletely burned, there are more than 100 different types. They can be extracted and used as plasticizers. Some of them, such as Benzo (a) pyrene (benzopyrene a ) are classified as carcinogens, and some are suspected carcinogens.
PAHs Sixteen Polycyclic Aromatic Hydrocarbon Compounds
There are more than 100 , 10,000 different polycyclic aromatic hydrocarbon compounds. The vast majority of poly PAHs (polycyclic aromatic hydrocarbons) do not exist alone in the environment,
They are often a mixture of two or more poly PAHs ( polycyclic aromatic hydrocarbons ) . There are 16 PAHs (polycyclic aromatic hydrocarbons) suspected of having carcinogenic effects .
|
No. |
PAHs polycyclic aromatic hydrocarbons |
CAS number |
|
1. |
Acenaphthene / acenaphthene |
83-32-9 |
|
2. |
Acenaphthylene / acenaphthylene |
208-96-8 |
|
3. |
Anthracene / anthracene |
120-12-7 |
|
4. |
Benzo (a) anthracene / benzanthracene |
56-55-3 |
|
5. |
Benzo (a) pyrene / benzo (a) pyrene |
50-32-8 |
|
6. |
Benzo (b) fluoranthene / benzo (b) fluoranthene |
205-99-2 |
|
7. |
Benzo (ghi) perylene / benzo (g, h, i) perylene |
191-24-2 |
|
8. |
Benzo (k) fluoranthene / benzo (k) fluoranthene |
207-08-9 |
|
9. |
Chrysene / flexion |
218-01-9 |
|
10. |
Dibenzo (a, h) anthracene / dibenzo (a, h) anthracene |
53-70-3 |
|
11. |
Fluoranthene / fluoranthene |
206-44-0 |
|
12. |
Fluorene / fluorene |
86-73-7 |
|
13. |
Indeno (1,2,3-cd) pyrene indeno (1,2,3-cd) pyrene |
193-39-05 |
|
14. |
Naphthalene / Naphthalene |
91-20-3 |
|
15. |
Phenanthrene / Philippines |
85-01-8 |
|
16. |
Pyrene / Pyrene |
129-00-0 |
PAHs polycyclic aromatic hydrocarbon limits
|
Category |
Benzo (a) pyrene (BaP) |
16 Xiang PAH sum |
|
One category : Food contact materials or items and toys that children under three will put in the mouth |
Not detectable * (<0.2 mg / kg) |
Not detectable * (<0.2 mg / kg) |
|
Second category : Plastic , parts that are in constant contact with the skin, parts with contact time of more than 30 seconds, and toys that are not in the category |
1mg / kg |
10mg / kg |
|
Three categories : Plastic , parts that occasionally come into contact, that is, parts that come into contact with the skin for less than 30 seconds, or parts that do not come into contact with the skin |
20mg / kg |
200mg / kg |
* If the test result is greater than a second-class category but comply with the limits, to be then based on DIN EN 1186 and §64 LFGB 80.30-1 migration tests ( Migration the Test test) to confirm the test results.