BS ISO 9932:2021 - Paper and Board: Determination of Water Vapour Transmission Rate

Discover the essential standard for determining the water vapour transmission rate of sheet materials with the BS ISO 9932:2021. This comprehensive document is a must-have for professionals in the paper and board industry, providing detailed methodologies for assessing the permeability of materials to water vapour using both dynamic sweep and static gas methods.

Overview

The BS ISO 9932:2021 standard is a critical resource for manufacturers, quality control specialists, and researchers who need to ensure the integrity and performance of paper and board products. Released on March 3, 2021, this standard offers a robust framework for accurately measuring the water vapour transmission rate (WVTR) of sheet materials, which is crucial for applications where moisture control is paramount.

Key Features

• Standard Number: BS ISO 9932:2021
• Pages: 20
• Release Date: March 3, 2021
• ISBN: 978 0 539 12559 7
• Status: Standard

Methodologies

The standard outlines two primary methods for determining the water vapour transmission rate:

Dynamic Sweep Method

This method involves the continuous flow of a gas over the surface of the material, allowing for the measurement of water vapour transmission under dynamic conditions. It is particularly useful for materials that are expected to encounter varying environmental conditions during their use.

Static Gas Method

In contrast, the static gas method measures the water vapour transmission rate under static conditions, providing a controlled environment to assess the material's permeability. This method is ideal for applications where the material will be exposed to consistent conditions.

Applications

The BS ISO 9932:2021 standard is applicable across a wide range of industries, including:

• Packaging: Ensuring that packaging materials provide adequate moisture barriers to protect contents.
• Construction: Evaluating building materials for moisture control to prevent damage and maintain structural integrity.
• Textiles: Assessing the breathability and moisture resistance of fabric materials.
• Food Industry: Maintaining the quality and shelf life of food products by using appropriate packaging materials.

Benefits

Implementing the guidelines and methodologies outlined in the BS ISO 9932:2021 standard offers numerous benefits, including:

• Quality Assurance: Ensure that your products meet industry standards for moisture control, enhancing customer satisfaction and product reliability.
• Regulatory Compliance: Stay compliant with international standards, reducing the risk of legal issues and market entry barriers.
• Product Development: Use the data obtained from WVTR testing to innovate and improve product designs, leading to better performance and competitive advantage.
• Cost Efficiency: Optimize material selection and usage, potentially reducing costs associated with material waste and product failures.

Why Choose BS ISO 9932:2021?

Choosing the BS ISO 9932:2021 standard means investing in a reliable and scientifically validated method for assessing the water vapour transmission rate of sheet materials. This standard is backed by extensive research and industry expertise, ensuring that you have access to the most accurate and up-to-date information available.

Whether you are involved in manufacturing, quality control, or research and development, the BS ISO 9932:2021 standard provides the tools you need to achieve excellence in your field. By adhering to this standard, you can confidently produce materials that meet the highest standards of quality and performance.

Conclusion

In today's competitive market, ensuring the quality and performance of your products is more important than ever. The BS ISO 9932:2021 standard offers a comprehensive solution for determining the water vapour transmission rate of paper and board materials, providing you with the insights needed to make informed decisions and maintain a competitive edge.

Equip your team with the knowledge and tools provided by the BS ISO 9932:2021 standard and take the first step towards achieving superior product quality and customer satisfaction.

BS ISO 9932:2021

This standard BS ISO 9932:2021 Paper and board. Determination of water vapour transmission rate of sheet materials. Dynamic sweep and static gas methods is classified in these ICS categories:

• 85.060 Paper and board

This document describes general test methods for determining the water vapour transmission rate of sheet materials by means of a dynamic gas method or a static gas method. Depending on the method and specific apparatus employed, materials up to 38 mm thick and with water vapour transmission rates in the range from 0,05 g/(m²·d) to 65 g/(m²·d) can be tested. The basis of the function of the instrumental techniques is briefly described. Advice on calibration is given in Annex B.