International standards for mechanical properties and industrial materials

The international market for goods and services is subject to regulation by many institutions and organizations. Some companies focus on international development, while others pay more attention to local rules and regulations. This difference in adherence to international rules is primarily due to the specification of the activities of a particular organization or business, as well as the scale. Today, one of the most universal documents regulating both the activities of small businesses and corporations are international ISO standards. The presence of these documents can not only structure existing processes, but also help to reach new levels much faster. Today we will introduce you to some of the most recent and relevant industrial materials standards.

Plastics - Differential scanning calorimetry (DSC) - Part 8: Determination of thermal conductivity (ISO 11357-8:2021)

EN ISO 11357-8:2021

Thermal influences on plastic products can have various consequences. One of the most dangerous is toxicity. To regulate this type of activity, international standards such as EN ISO 11357-8: 2021 are created.

This document establishes a method for determination of the thermal conductivity of solid unfilled and filled or fibre reinforced plastics and composites by means of differential scanning calorimetry (DSC). It is applicable for materials with thermal conductivities of up to 1 W/(m⋅K).

Since the toxic substances released during the thermal processing of plastic can have a significant negative impact on company employees, we strongly recommend having this standard available if your field of activity comes into contact with the technology mentioned.

Plastics - Determination of the viscosity of polymers in dilute solution using capillary viscometers - Part 1: General principles (ISO 1628-1:2021)

EN ISO 1628-1:2021

Sometimes specific standards are created for certain types of activities, nevertheless, despite this, there are still global and general international standards, one of which is EN ISO 1628-1: 2021.

This document defines the general conditions for the determination of the reduced viscosity, intrinsic viscosity and K‑value of organic polymers in dilute solution. It defines the standard parameters that are applied to viscosity measurement. This document is used to develop standards for measuring the viscosities in solution of individual types of polymer. It is also used to measure and report the viscosities of polymers in solution for which no separate standards exist. This standard is generic. If you are interested in individual documents and subcategories of the above described activities, we recommend that you follow the link to the site and familiarize yourself with the list of documents that may suit you.

Glued-in rods in glued structural timber products - Testing, requirements and bond shear strength classification

EN 17334:2021

For the implementation of successful production activities, such a stage as a test of existing products and services is carried out. This stage is one of the most important, as it determines the further success, quality, as well as the financial result of the organization. To regulate these processes, a document such as EN 17334: 2021 was created.

This document specifies test methods for the determination of the suitability of two component epoxy and two component polyurethane adhesives for glued-in steel rods in glued laminated timber (GLT) and glued solid timber (GST) according to EN 14080, cross laminated timber (CLT) according to EN 16351 and laminated veneer lumber (LVL) according to EN 14374.

It specifies performance requirements and the determination of characteristic bond strength values for such adhesives for the prefabrication under factory or factory-like conditions of joints between load-bearing timber products and steel rods only. This document does not cover the performance of adhesives for on-site gluing (except for factory-like conditions).

NOTE 2 Factory like conditions provide shelter from direct weathering and dirt, prevent undue movement of the joints during curing of the adhesive and provide temperature and relative humidity conditions and control as in factory production environment.

This document also covers glued-in rods in surface treated wood. It does not cover glued-in rods in modified and stabilized wood with considerably reduced swelling and shrinkage properties, e.g. acetylated wood, heat treated wood, polymer impregnated wood and preservative treated wood.

The joints are intended for load-bearing timber structures in service classes 1 and 2 according to EN 1995-1-1 which are loaded predominantly static or quasi static according to EN 1990 and EN 1991-1-1. The joints are intended for load-bearing timber structures which are not subjected to a prolonged exposure to temperatures over 60 °C.

A detailed determination of the areas in which this standard can be used will allow you to understand whether it matches the technological base of your organization. If you have any questions about specifying the equipment and processes described in this document, you can contact a company of specialists in the field of selection of international standards, who will provide advice and select the correct standard.

Two-component epoxy and polyurethane adhesives for on-site repair of cracked timber structures - Testing, requirements and repair strength verification

EN 17418:2021

We have already mentioned the importance of test methods for building a productively functioning system. This stage is carried out in almost every area of production activity. Another important standard governing test methods and the requirements for them is EN 17418: 2021.

This document specifies test methods and requirements for two-component epoxy and polyurethane adhesives for on-site repair of cracks in timber structures made of strength graded structural timber with rectangular cross-section, structural finger-jointed timber, glued solid timber and glued laminated timber made of softwood species by injection of the repair adhesive with glue line thicknesses up to 8 mm.

The adhesive can also be used to rehabilitate cracks in the area of joints made by nails, screws, dowel-type fasteners and dowels with threads. The adhesive can also be used to fill gaps between the faces of structural components. This document addresses exclusively adhesives which fulfil the requirements according to Clause 8.

This document also covers the repair of surface treated wood. It does not cover the repair of preservative treated wood, modified and stabilized wood with considerably reduced swelling and shrinkage properties, e.g. acetylated wood, heat treated wood and polymer impregnated wood.

The adhesive is intended for the repair of load bearing timber structures not subjected to temperatures more than 60 °C over a longer time in service classes 1 and 2 according to EN 1995-1-1 which are loaded predominantly static or non-fatigue quasi static, see EN 1990 and EN 1991-1-1.

If you are interested in purchasing this standard, or similar standards of a related industry, we recommend that you follow the link to the site and familiarize yourself with the entire list of available documents. Perhaps this is where you will find standards that will go a long way towards structuring your organization's system.

Plastics - Determination of dynamic mechanical properties - Part 3: Flexural vibration - Resonance-curve method (ISO 6721-3:2021)

EN ISO 6721-3:2021

In the modern world, the use of plastic is significantly minimized, as it negatively affects environmental aspects. Nevertheless, it is for this reason that an increasing number of regulatory acts are being created to regulate activities that come into contact with this material, one of which is EN ISO 6721-3: 2021.

This document specifies a bending-vibration method based upon resonance curves for determining the flexural complex modulus of homogeneous plastics and the damping properties of laminated plastics intended for acoustic insulation, for example systems consisting of a metal sheet coated with a damping plastic layer, or sandwich systems consisting of two sheet-metal layers with an intermediate plastic layer. For many purposes, it is useful to determine these properties as a function of temperature and frequency.

If your activities directly or indirectly come into contact with the mentioned types of equipment and materials, we strongly recommend that you have this standard available in order to be sure that your organization's system operates in accordance with the latest requirements of international global markets. This is what will keep you at the forefront of your industry.

The importance of having international standards in an organization

At first glance, the presence of international standards may seem like a necessity only for local companies and manufacturers. Nevertheless, the vector of development of local markets is moving more and more towards globalization, which is why by preparing the ground in advance for entering the international level, it is possible to significantly strengthen the position of an enterprise's competitiveness. That is why we are always happy to help you in choosing international documents that are suitable for your business or organization.