BS EN ISO 15512:2019
Plastics. Determination of water content
| Standard number: | BS EN ISO 15512:2019 |
| Pages: | 44 |
| Released: | 2019-06-12 |
| ISBN: | 978 0 539 00026 9 |
| Status: | Standard |
BS EN ISO 15512:2019 - Plastics: Determination of Water Content
In the world of plastics, precision and accuracy are paramount. The BS EN ISO 15512:2019 standard is an essential tool for professionals in the plastics industry, providing a comprehensive methodology for determining the water content in plastics. Released on June 12, 2019, this standard is a critical resource for ensuring the quality and performance of plastic materials.
Why Water Content Matters in Plastics
Water content in plastics can significantly affect their properties and performance. Excess moisture can lead to defects such as bubbles, voids, and poor surface finish, which can compromise the integrity and functionality of the final product. By accurately determining the water content, manufacturers can ensure that their products meet the highest standards of quality and reliability.
Comprehensive Coverage
The BS EN ISO 15512:2019 standard spans 44 pages of detailed guidelines and procedures. It provides a thorough approach to measuring water content, ensuring that users can achieve consistent and reliable results. This standard is indispensable for laboratories, quality control departments, and research facilities involved in the production and testing of plastic materials.
Key Features of BS EN ISO 15512:2019
- Standard Number: BS EN ISO 15512:2019
- Pages: 44
- Release Date: June 12, 2019
- ISBN: 978 0 539 00026 9
- Status: Standard
Who Can Benefit from This Standard?
This standard is invaluable for a wide range of professionals in the plastics industry, including:
- Manufacturers: Ensure that your products meet industry standards and customer expectations by accurately measuring water content.
- Quality Control Specialists: Use this standard to maintain high-quality production processes and minimize defects.
- Research and Development Teams: Leverage the detailed methodologies to innovate and improve plastic materials.
- Testing Laboratories: Provide reliable and consistent testing services to your clients with the guidance of this standard.
Enhance Your Quality Assurance Processes
Implementing the BS EN ISO 15512:2019 standard in your operations can significantly enhance your quality assurance processes. By following the precise methods outlined in this standard, you can reduce the risk of defects, improve product performance, and increase customer satisfaction. This standard is a testament to your commitment to excellence and quality in the plastics industry.
Stay Ahead in the Plastics Industry
In an industry where innovation and quality are key, staying ahead of the competition requires adherence to the latest standards and practices. The BS EN ISO 15512:2019 standard equips you with the knowledge and tools necessary to maintain a competitive edge. By ensuring that your products meet the highest standards of water content determination, you can confidently deliver superior products to the market.
Conclusion
The BS EN ISO 15512:2019 standard is more than just a guideline; it is a vital resource for anyone involved in the production, testing, and quality assurance of plastic materials. With its comprehensive coverage and detailed methodologies, this standard is an indispensable tool for achieving excellence in the plastics industry. Invest in the BS EN ISO 15512:2019 standard today and take a significant step towards ensuring the quality and reliability of your plastic products.
BS EN ISO 15512:2019
This standard BS EN ISO 15512:2019 Plastics. Determination of water content is classified in these ICS categories:
- 83.080.01 Plastics in general
This document specifies methods for the determination of the water content of plastics in the form of powder, granules, and finished articles. These methods do not test for water absorption (kinetics and equilibrium) of plastics as measured by ISO 62.
Method A is suitable for the determination of water content as low as 0,1 % with an accuracy of 0,1 %. Method B and Method C are suitable for the determination of water content as low as 0,01 % with an accuracy of 0,01 %. Method D is suitable for the determination of water content as low as 0,01 % with an accuracy of 0,01 %. Method E is suitable for the determination of water content as low as 0,001 % with an accuracy of 0,001 %. The stated accuracies are detection limits which depend also on the maximal possible sample mass. The water content is expressed as a percentage mass fraction of water.
Method D is suitable for polyamide (PA), polycarbonate (PC), polypropylene (PP), polyethylene (PE), epoxy resin, polyethylene terephthalate (PET), polyester, polytetrafluoroethylene (PTFE), polyvinyl chloride (PVC), polylactide (PLA), polyamidimid (PAI), it is especially not recommended for samples which can release NH3. Methods A, B, C and E are generally suitable for all types of plastic and moisture level.
Water content is an important parameter for processing materials and is expected to remain below the level specified in the appropriate material standard.
Six alternative methods are specified in this document.
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Method A is an extraction method using anhydrous methanol followed by a Karl Fischer titration of the extracted water. It can be used for all plastics and is applicable to granules smaller than 4 mm × 4 mm × 3 mm. The method can also be used for, e.g. prepolymer materials in the form of a powder that are insoluble in methanol.
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Method B1 is a vaporization method using a tube oven. The water contained in the test portion is vaporized and carried to the titration cell by a dry air or nitrogen carrier gas, followed by a Karl Fischer titration or a coulometric determination by means of a moisture sensor of the collected water. It can be used for all plastics and is applicable to granules smaller than 4 mm × 4 mm × 3 mm.
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Method B2 is a vaporization method using a heated sample vial. The water contained in the test portion is vaporized and carried to the titration cell by a dry air or nitrogen carrier gas, followed by a Karl Fischer titration of the collected water. It can be used for all plastics and is applicable to granules smaller than 4 mm × 4 mm × 3 mm.
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Method C is a manometric method. The water content is determined from the increase in pressure, which results when the water is evaporated under a vacuum. This method is not applicable to plastic samples containing volatile compounds, other than water, in amounts contributing significantly to the vapour pressure at room temperature. Checks for the presence of large amounts of volatile compounds are to be carried out periodically, for example by gas chromatography. Such checks are particularly required for new types or grades of material.
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Method D is a thermocoulometric method using a diphosphorus pentoxide (P 2O 5) cell for the detection of the vaporized water. The water contained in the test portion is vaporized and carried to the sensor cell by a dry air or nitrogen carrier gas, followed by a coulometric determination of the collected water. This method is not applicable to plastic samples containing volatile compounds, other than water, in amounts contributing significantly to the vapour pressure at room temperature. This is specially related to volatile components which can react with the acidic coating of the diphosphorus pentoxide sensor, e.g. ammonia or any kind of amines. Checks for the presence of large amounts of volatile compounds are to be carried out periodically. Such checks are particularly required for new types or grades of material.
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Method E is a calcium hydride based method. The water content of a sample evaporates due to a combination of vacuum and heating. The evaporated water reacts with calcium hydride to molecular hydrogen and calcium hydroxide. The hydrogen causes an increase of pressure in the vacuum that is proportional to the evaporated water. Volatile components, that do not react with calcium hydride condensate in a cooling trap and do not affect the measurement.