ting and testing of non-metallic parts in the German drinking water industry) represents the German federal health authority for selection and health assessment of drinking water systems, which is the laboratory of the German DVGW. KTW is a mandatory regulatory agency set up in 2003. The standard of KTW test is EN681-1. All drinking water systems and accessories exported to Germany must have the KTW certification. KTW has been recognized by the World Health Organization (WHO) as the authoritative certification standard for drinking water safety.

Products Involved

According to the types of products in contact with water, the products are divided into 6 categories, and 6 types of KTW test specifications are formulated accordingly. The categories of the 6 categories are as follows:

1. Plastic in contact with water;

2. Organic paint in contact with drinking water;

3. Paint in contact with drinking water;

4. Grease in contact with drinking water;

Rubber in contact with drinking water;

6. Asphalt materials in contact with drinking water, etc

Certification process:

1. Provide relevant formulations of products or materials, and the laboratory will review the formulations of raw materials to check whether they meet the requirements of German regulations;

2. Passed the examination of the formula, provided the corresponding test samples according to the test requirements of the laboratory, and started the relevant tests;

3. After all tests are passed, the laboratory will submit the review and issue the certificate.

Information required for certification:

1. The applicant's company information, such as company name, company address, telephone, fax, contact person, email, etc., and the selection of test type;

2. Product name, product description, product use, product drawing;

3. If any pigment is added, the pigment formula shall be provided.

4. Provide test samples according to laboratory requirements

German W270 certification

In order to control the microbiology of products that come into contact with drinking water without affecting human health, Regulation W270 has been established by the German institute DVGW (German Association for Gas and Water). Microbial Propagation on Nonmetallic Materials; , which is primarily concerned with the microbiological requirements of products that come into contact with drinking water: protection of drinking water from biological impurities.

Certification process:

1. Provide relevant formulations of products or materials, and the laboratory will review the formulations of raw materials to check whether they meet the requirements of German regulations;

2. Passed the examination of the formula, provided the corresponding test samples according to the test requirements of the laboratory, and started the relevant tests;

3. After all tests are passed, the laboratory will submit the review and issue the certificate.

Information required for certification:

1. The applicant's company information, such as company name, company address, telephone, fax, contact person, email, etc., and the selection of test type;

2. Product name, product description, product use, product drawing;

3. If any pigment is added, the pigment formula shall be provided.

4. Provide test samples according to laboratory requirements