Nissenken has been the pioneer in harmful substance determination and securing customers' confidence and safety for products since being authorized by Oeko-Tex as its only institute in Japan in 2000. Nissenken promises to always issue accurate test results based on our knowledge and experience accumulated over 15 years. And our multiple business sites in domestic and overseas also enable us to offer you with high-level service efficiently.

| Oeko-tex laboratory | Tokyo | Osaka | Shanghai | Nantong | Renminlu |
| Yantai | Dhaka | Jaipur |
* All our business sites can receive testing requests.
For specific information, please contact the nearest laboratory.
Nowadays, how to ensure the confidence/ safety of the products and get customers' trust becomes more crucial than before. Since 1992, the use of certain aromatic amines which cleavage from azo and may cause cancer has been banned by Oeko-Tex standard 100. After that in 1994 Germany issued relevant law and regulation. Then EU, China, Korea followed the same trial. In Japan, the control of certain aromatic amines is progressed by Ministry of Health, Labor and Welfare and has been implemented starting April 1, 2016.

After the law taking effect, products with the usage of more than 30mg/kg of the specified 24 kinds of certain aromatic amines will be banned to sale in Japan.
Textile products |
Diaper, Diaper cover, Underwear, Night clothes, Gloves, Socks, Intermediate wear, Outer wear, Cap, Hat, Bedding, Table cloth, Neck accessories, Handkerchief, Towel, Bath mats, Relevant products. |
Leather products (including leather-fur products) |
Under wear, Gloves, Intermediate wear, Outer wear, Cap, Hat, Bedding. |
Azo colorants, ones with azo group, take up 70% among all the colorants (dyestuff and pigment) . Among all the azo colorants, some of them may have reaction with human enzymes and reduced to amine. Certain aromatic amines are the 24 kinds of amines which is possible to cause cancer to human beings.

No. | CAS.No. | Name |
---|---|---|
1 | 92-67-1 | 4-Aminobiphenyl |
2 | 92-87-5 | Benzidine |
3 | 95-69-2 | 4-Chloro-o-toluidine |
4 | 91-59-8 | 2-Naphthylamine |
5 | 97-56-3 | o-Aminoazotoluene |
6 | 99-55-8 | 2-Amino-4-nitrotoluene |
7 | 106-47-8 | p-Chloroaniline |
8 | 615-05-4 | 2,4-Diaminoanisole |
9 | 101-77-9 | 4,4'-Diaminodiphenylmethane |
10 | 91-94-1 | 3,3'-Dichlorobenzidine |
11 | 119-90-4 | 3,3'-Dimethoxybenzidine |
12 | 119-93-7 | 3,3'-Dimethylbenzidine |
No. | CAS.No. | Name |
---|---|---|
13 | 838-88-0 | 3,3'-Dimethyl-4,4'-diaminodiphenylmethane |
14 | 120-71-8 | p-Cresidine |
15 | 101-14-4 | 4,4'-Methylene-bis-(2-chloroaniline) |
16 | 101-80-4 | 4,4'-Oxydianiline |
17 | 139-65-1 | 4,4'-Thiodianiline |
18 | 95-53-4 | o-Toluidine |
19 | 95-80-7 | 2,4-Toluylenediamine |
20 | 137-17-7 | 2,4,5-Trimethylaniline |
21 | 90-04-0 | o-Anisidine |
22 | 95-68-1 | 2,4-Xylidine |
23 | 87-62-7 | 2,6-Xylidine |
24 | 60-09-3 | 4-Aminoazobenzene |
Confirm testing part and material (Especially whether disperse dye is used or not)

10g of every color.
For specific information, please contact our local laboratory.
Turnaround time is 5 work days.
* For more detail, please contact with our laboratories.

| Oeko-tex laboratory | Tokyo | Osaka | Shanghai | Nantong | Renminlu |
| Yantai | Dhaka | Jaipur |
* All our business sites can receive testing requests.
For specific information, please contact the nearest laboratory.