BS 6920-1 PDF

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Non-metallic materials in contact with drinking water in the UK must conform to British Standard (BS) to address regulations regarding. Find the most up-to-date version of BS at Engineering These Guidance Notes gives details of the BS tests and test sample The requirements for the suitability of non-metallic products are given in BS

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WRAS approvals for fittings require both mechanical testing, as well as testing of non-metallic tests to BS Take the smart route to manage medical device compliance. This is a study 6902-1 gross acute toxicity. BS includes five main test requirements, applied to all non-metallic materials in contact with drinking water:. Standard Number BS The PAG meets about 20 times each year to review the recently submitted WRAS approval applications and make a determination regarding acceptance. Approvals are valid for five years.

BS 6920-1:2014

Suitability of non-metallic products for use in contact with water intended for human consumption with regard to their effect on the quality of the water the official title of BS may be long, but it does effectively describe the scope and purpose of the standard. Interestingly, there is no safety standard or testing applicable to metallic materials in contact with drinking water in the UK.

So non-metallic materials are evaluated for extraction of metals, along with the four other tests listed above, but metallic materials are not evaluated for extraction of metals in the UK.

Odor and flavor This test is performed on individual materials to determine if the materials impart a discernible odor or flavor to the water. Growth of aquatic microorganisms Materials are placed into water that is saturated with dissolved oxygen and sealed into bottles. After exposure to the water and a 1: Your basket is empty. There are no manufacturing-facility audits required for WRAS approvals.

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A sample may consist of 6290-1 than one piece. Find Similar Items This product falls into the following categories. The samples must also be no more than 12 months old at the date they are received at the test laboratory.

Customers who 6902-1 this product also bought BS After exposure, any increase in the color or turbidity of the water must be less than five Hazen units and 0. The faster, easier way to work with standards. Click to learn more.

Note that each of these tests is conducted on one material only, not on products consisting of multiple materials. Extraction of substances of concern to public health This test 69220-1 also known as the cytotoxicity test. Non-metallic materials in contact with drinking water in the UK must conform to British Standard BS to address regulations regarding prevention of contamination of the drinking water supply.

When shipped to the laboratory, the samples are typically placed into labeled, polyethylene bags, because samples labeled directly with adhesive tape, ink, etc. A taste test panel is employed for the evaluation. Materials are exposed to water and then the water is placed in contact with mammalian cells to observe any toxic effects 9620-1 the cells, in order to assess potential human toxicity.

Suitability of non-metallic materials and products for use in contact with water intended for human consumption with regard to their effect on the quality of the water. If the arithmetic mean of the MDOD values from the three product samples is less than 2. The odor and flavor, color and turbidityextraction of substances of concern to public health and extraction of metals tests are carried out at the specified high temperature.

Accept and continue Learn more about the cookies we use and how to change your settings. If the application is determined to be acceptable, then the WRAS issues the approval. Note also that no formulation disclosure is required because the testing is applied in the same way for each non-metallic material regardless of material type or formulation.

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This directory can be found at https: The test is conducted with both chlorinated and non-chorinated water.

British Standard BS – WCP Online

Search all products by. Metallic materials are not evaluated under this test. So, there will be multiples of each of these tests for products that include multiple non-metallic materials in contact with the water supply, with each being a separate test on separate materials.

Learn more about the cookies we use and how to change your settings. Ten samples of each material are required. If the MDOD value is 1. If after seven weeks the MDOD value is between 1. Extraction of metals A leaching test on all non-metallic materials is conducted.

The list of metals and maximum admissible concentration MAC of each is included in Figure 1. Please download Chrome or Firefox or view our browser tips. You may experience issues viewing this site in Internet Explorer 9, 10 or You may find similar items within these categories by selecting from the choices below:. If the final MDOD value over weeks 5, 6, 7, 8 and 9 is less than 1. WRAS does not own or operate a testing laboratory. A set list of metals is analyzed regardless of material type or formulation.

The mean dissolved oxygen difference MDOD between water exposed to the product and control is determined based on bd taken in weeks 5, 6 and 7. Worldwide Standards We can source any standard from anywhere in the world. WRAS approves these laboratories based on their participation in comparison tests conducted to ensure that approved laboratories achieve similar test results.