The document be worth with DIN EN 681-1 and prEN 681-3 for joints for pipe connections of sewers and drains as well as manholes and sanitary appliances with elastomeric seals. The rules of the document ar only be worth, if the corresponding product-standard for pipes of sewers and drains as well as manholes and sanitary appliances with elastomeric seals and such instruction will be not contains.#,,#