Kiwa Watermark Certification, Testing and Inspection for Rubbers and Adhesives

Kiwa Watermark product certification under Kiwa evaluation guideline BRL K17504/3 applies to products intended to be applied as sealing systems for drinking water. For other applications as mentioned here a more explicit testing might be necessary to assure a correct function of the products.

In evaluation guideline BRL K17504/3 the products are classified in the following areas of use:

• Water supply at temperatures up to 50°C.
• Water supply at temperatures intermittently up to 110°C, or water supply up to 110°C in serviceable piping systems.
• Hot water circulation systems based on the classification class 2 in ISO 10508.

Certification is intended for actual products (seals). To reduce unnecessary testing, it is also possible to issue a certificate on a rubber material intended to be used for the production of products afterwards. Having such a certificate will reduce the tests needed to be carried out on the actual products.

The evaluation guideline BRL K17504/3 is a certification scheme for vulcanised rubber products for cold and hot drinking water applications.

Download BRL-K17504/03 Evaluation Guideline

Kiwa Watermark product certification under Kiwa evaluation guideline BRL K17505-1 applies to TPE materials intended to be applied for products in cold drinking water applications, temperatures temporarily up to maximum 45°C. Categorised in:

• Sealing elements: TPE materials that are intended to have a sealing function in elements in piping systems for the transport of cold drinking water.
• Non sealing: TPE materials that are intended to be applied in products or integrated parts in equipment and appliances, surface covers, etcetera without having a sealing function. Materials that comply with the requirements for subgroup sealing elements also comply with those for the subgroup non sealing.

The evaluation guideline BRL-K17505-1 is a certification scheme for the Kiwa product certificate for TPE materials for products in cold drinking water applications.

Download BRL-K17505-1 Evaluation Guideline

Kiwa Watermark product certification under Kiwa evaluation guideline BRL K17505-2 applies to TPE sealing elements in piping systems for the transport of cold drinking water, temperatures temporarily up to maximum 45°C.

The evaluation guideline BRL-K17505-1 is a certification scheme for TPE sealing elements in cold drinking water applications.

Download BRL K17505-2 Evaluation Guideline

Kiwa Watermark certification under Kiwa evaluation guideline BRLK525 applies to adhesives for joints in thermoplastic piping systems for the transport of drinking water.

Evaluation guideline BRL K525 specifies the functional requirements and test methods for adhesives used for joining the components of unplasticed poly (vinyl chloride) (PVC-U), chlorinated poly (vinyl chloride) (PVC-C), acrylonitrile-butadiene-styrene (ABS) thermoplastic piping systems for the transport of drinking water.

This evaluation guideline is exclusively suitable for assessment of adhesives with accompanying cleaners under laboratory circumstances.

Download BRL-K525 Evaluation Guideline

The Kiwa Watermark process certificate for lubricants for rubber ring joints is relevant for manufacturers or suppliers of lubricants for rubber rings in drinking water pipes made of concrete, asbestos cement, cast iron or steel, unplasticized polyvinyl chloride (PVC-U), polyethylene (PE), polypropylene (PP) and glass fiber reinforced them-hard plastics (GRP).

The lubricants should meet the toxicological, microbiological and organoleptic requirements laid down in the current Ministerial Regulation ‘Materials and chemicals for drinking and hot tap water supply’.

In addition, requirements are imposed on the shelf life, the workability and the adhesion to pipe materials, the influence on the mechanical properties of pipe materials and rubber rings and the friction-reducing effect.

The evaluation guideline BRL 535 contains the requirements for lubricants for connections with rubber rings in drinking water pipes for obtaining and maintaining the Kiwa product certificate.

Download BRL-K535 Evaluation Guideline