Proficiency testing represents a valuable method for assessing and ensuring the quality of laboratory operations. These comparisons can encompass various aspects, including instrument performance and analysis methods.

By comparing the results from different laboratories, one can detect any potential differences or deviations and identify areas where improvements can be made.

Such a forum for proficiency testing provides an excellent opportunity for open and constructive discussions within the laboratory community. It allows participants to share experiences, discuss best practices, and collectively work towards enhancing the quality and reliability of laboratory analyses. Additionally, it promotes increased awareness of the crucial role that laboratories play in various industries and society as a whole.

By actively participating in proficiency testing and discussions, laboratory personnel can enhance their competence, improve their skills, and develop a deeper understanding of the methods and techniques used within their field of work. This, in turn, can lead to improved accuracy, precision, and reliability in the analyses performed, benefiting both the laboratory's reputation and its ability to deliver high-quality results to its customers and partners.

RISE offers the following tre different test comparisons; PFI mill, ISO Brightness and emission parameters for forest industrial wastewater.

PFI mill - long fiber and short fiber (in collaboration with PFI Instruments)

By participating and comparing your own values ​​for refining with a reference pulp, you know how well your own refiner is calibrated. The results can also be a complement to traceable calibration before applying for accreditation or certification.

Once a year, RISE sends out reference pulp to the participating laboratories for refinering, handmade sheets and testing. The results are processed and compiled at RISE. Everything is presented in a report where the whole is reported in relation to the respective laboratory's values. Diagrams are obtained for each parameter as well as tables with the other participants' results.

The reference pulp is taken in large quantities at one time. This provides an opportunity for a direct comparison with the previous round and a long-term history.

ISO Brightness

The whole method will be tested and this is a good opportunity to easily compare the results from your own measurement with others' results. We will send out two pulps, a hardwood and a softwood. The results are sent to RISE and for compilation, including our own, and the participants are provided with the measurement results. In the compilation, the samples are deidentified so that each participant only knows his result but can compare himself with the other participants' results.

Emission parameters for forest industrial wastewater

Twice a year, May and November, we will send out frozen samples to you. A written summary is received a few months later where the results are presented anonymously. There are two content levels of each analysis. Report the analyzes that are of interest to you.

If there is a request for test rings, please contact us and we can discuss the possibility of starting them up.

You can also find us at EPTIS.

PFI-mill:

Refinery with 5 points (ISO 5264-2)
• SR (ISO 5267-1)
• CSF (ISO 5267-2)
• WRV (ISO 23714)
• Density (ISO 534)
• Tensile index (ISO 1924-3)
• Elongation (ISO 1924-3)
• TEA (ISO 1924-3)
• Burst strength (ISO 2758)
• s & k (ISO 9416)
• Air permeance Bendtsen (ISO 5636-3)
• Tear resistance (ISO 1974)

ISO Brightness: The laboratories manufacture their own laboratory sheets according to ISO 3688 and then the sheets are measured according to ISO 2470-1, ISO brightness.

Test comparison of emission parameters for forest industrial wastewater:

• COD, TOC, Tot-N, Tot-P, suspended solids GF / A, conductivity, chlorate, sodium.
• Coarse particles and fibers in wastewater (susp 70). Sample type: Fibers dissolved in water samples
• pH. Sample type: Water sample

RISE offers a comprehensive report where the results are presented in concise yet informative sections with clear diagrams and tables. All key parameters and relevant comments are included to provide a clear picture of the analyses and their results. By using diagrams and tables, it becomes easier to detect patterns and trends, facilitating decision-making.

We're delighted to inform you that analysis results will be conveniently delivered via email.

To ensure a smooth registration process, kindly provide us with the following details: your name, company name, mailing address (for sample delivery), telephone number, email address, and invoice address.

Thank you for your cooperation! We look forward to assisting you further.

Microorganisms in liquids, paper, and cardboard can cause staining and contamination, impacting both the production process and the final product. In food-related manufacturing, it is particularly important to monitor and control this to ensure high standards of quality and hygiene.

In the manufacturing of paper and cardboard intended for food contact, it is crucial to carefully monitor the bacterial content of the final product. High bacterial levels can not only impact food safety but also cause issues in the production process. Bacteria can contribute to operational disruptions by forming biofilms in pipelines and on machine components, leading to production downtime and increased maintenance costs. Moreover, microbial growth can result in discoloration or odors in the finished material, which in turn may lead to customer complaints and quality deviations.

To control bacterial levels, standardized testing methods are used to provide an indication of the microbial load in the paper or packaging. While these methods do not always give a complete picture of the specific microorganisms present, they serve as essential tools for ensuring compliance with hygiene standards. Regular monitoring and proper maintenance of production equipment are also crucial measures to minimize the risk of bacterial contamination and to ensure that paper and cardboard products are safe for food contact.

The method ISO8784-1:2014 do not say everything, we know e.g. not which ones grow, but the method is standardized and works well as a control to use even in mills.

RISE offers a report that includes data in Excel format and relevant images and diagrams. It is carefully compiled using standard methods for the conducted analyses. 

The delivery of results is scheduled based on our order backlog and the scope as well as the complexity of your assignment. We aim to ensure that your results are delivered on time, taking into account the specific requirements of your project.

RISE offers services for sampling and mapping of processes to assess and monitor various parameters critical to production efficiency and product quality. 

Fibre characterisation such as linear density, fibre strength or tenacity and elongation of staple fibres and filaments from viscose show the mechanical properties of the fibre.

RISE is equipped with two instruments for determining, among other things, linear density, fibre strength or tenacity and elongation of staple fibres and filaments from viscose. Spin studies based on viscose solution from dissolving cellulose, either manufactured in our pilots or delivered from customers, can be done in our spin pilot after which the final viscose fibre is characterised. The most common analysis is done on dry fibre, but wet fibre can also be analysed. 

The instruments are partly a Vibrodyn 400 and partly a Vibroscope 400 from Lenzing Instruments. The determinations are based on the methods SS-EN ISO 5079, ISO 1973: 1995 (E) and ISO 1130-1975 (E). 

RISE leads research, development, and innovation in viscose manufacturing. By combining advanced technology with scientific and practical expertise, RISE enhances efficiency, quality, and sustainability. Committed to advancing technology, RISE drives viscose development globally.

RISE offers a report that includes data in Excel format along with relevant images and diagrams. It is carefully compiled using standard methods for the analyses performed.

If a more detailed report is required, RISE has the capacity to provide a comprehensive scientific report based on the results and background information supplied by the customer, available upon request and quotation.

The delivery of results is scheduled based on our order backlog and the scope as well as the complexity of your assignment. We aim to ensure that your results are delivered on time, taking into account the specific requirements of your project. Thank you for your understanding and patience as we work to provide you with the best possible service.

Wood is one of the most important variables in pulp production and places high demands on the control of the wood delivered to the factories. The following wood and pulp analyses provide information about the economic value of the fibre, its processability and its pulp and paper properties.

RISE has extensive experience of working closely with factories in various industries, including the wood and pulp industry. Through our close collaboration and expertise in process analysis, we have helped companies improve their production processes and solve complex problems.

Using our advanced fibre line analyses, we can quickly and cost-effectively identify and address challenges that arise in the production process. By carefully analysing data from the fibre lines, we can optimise the process steps to increase efficiency, reduce waste and improve product quality.

We offer a wide range of analyses and services that can be tailored to your specific needs and challenges. Examples of our analyses include:

Fibre analysis: We can perform detailed analyses of fibre samples to characterise properties such as fibre length, fibre distribution and fibre strength. This information can be used to optimise fibre blends and improve paper quality.

Process optimisation: We can use advanced modelling tools and simulation programmes to optimise various process steps and maximise production capacity.

Problem identification and problem solving: If you encounter specific problems or challenges in your production process, our experts can analyse the situation and develop tailor-made solutions to effectively solve the problems.

RISE has extensive experience of working closely with factories in this process. With the help of our fibre line analyses, results and solutions can be achieved quickly and cost-effectively. This ensures that optimisation, development and problem solving for various process steps in the wood and pulp industry are as efficient as possible. We welcome you to discuss with us which analyses are right for your company.

RISE can analyse wood and pulp using a range of different analyses and measurement methods established within the wood and pulp industry to characterise and assess various properties of raw materials, processes and end products. Below is a more detailed description of some of the most common analyses and measurement methods:

• Alpha, beta, gamma cellulose
• Alkali resistance (R5, R10, R18)
• Anthraquinone (Internal method KA 10.225)
• Ash content (ISO 1762)
• Extractives
• Free phenol groups (internal method KA 10.207)
• Fibre charge (SCAN-CM 65)
• Chloride, total content (SCAN-CM 51) and chloride (ISO 9197)
• Carbohydrates (SCAN-CM 71)
• pH, water extract (ISO 29681)
• Sulphate (ISO 9198)
• Viscosity (ISO 5351)
• Z-potential

RISE provides a report containing data in Excel format as well as relevant images and diagrams. It is carefully compiled using standard methods for the analyses performed. The report also includes an assessment of measurement uncertainty to ensure the reliability of the results presented. All relevant parameters that are significant for the specific analysis are included to provide a comprehensive picture of the situation. In addition, there are detailed comments and explanations that provide further insight and understanding of the data presented.

The delivery of results is planned based on our order backlog and the scope and complexity of the assignment. We strive to deliver results on time, taking into account the specific requirements of your project. We appreciate your understanding and patience as we work to provide you with the best possible service.

RISE offers expertise and services in the field of wood and pulp, including the ability to perform wood and pulp sampling directly at the factories. Our team of experienced researchers and technicians has the knowledge and resources required to perform accurate and reliable wood and pulp sampling for analysis and evaluation.

By using dissolving pulp as a raw material, textile companies can play an active role in the transition towards a more sustainable and circular economy. By investing in research and development of dissolving fibers and production methods, the industry can contribute to promoting a more sustainable future for textile production and consumption.

The quality of dissolving pulp is crucial for the resulting fiber's properties, such as strength, elasticity, and color fastness. Therefore, it is important to carefully characterize and test the pulp before it is used in the production process to ensure that it meets specific requirements and standards for the intended use.

RISE has extensive experience and expertise in the characterization and testing of dissolving pulp and can assist companies in the textile and cellulose industries in evaluating and optimizing their raw materials for the production of high-quality fibres and products.

In the viscose pilot plant, along with the analyses mentioned below, individual pulps, as well as the suitability of various cellulose blends for viscose production, can be evaluated. Screening experiments can be conducted to investigate the influence of different process parameters on various dissolving pulps and to test how well a cellulose performs under given process settings. It is also possible to evaluate different process chemicals, test various additives for fibre properties, and so on.

Common pulp analyses:

• α-, β- och γ-cellulose – A widely used course measurement of the distribution of the degree of polymerisation (DP) of the pulp. High values of α-cellulose is seen as favourable.
• Acetone Extract – Low content of material extracted with acetone is favourable, but constant levels can be more preferable to ensure stabile processing. Many surface active additives will show up here.
• Carbonhydrates –Characterisation of the sugar moieties of which the pulp consists, which provides information about e.g. the hemicellulose content.
• Ash content – Measurement of the inorganic content in the pulp.
• Metals (Ca, Mg, Mn, Fe, Cu) – Measurement of the metal content in the pulp (specifically those found to have effect on the processability).
• SiO₂ content –Often measured on pulps to ensure levels are below a set threshold, as too much silica can disturb the spinning.
• Lignin content (Klason or acid soluble) – Measurement of the lignin content of the pulp.
• Molecule weight distribution

RISE offers a report that includes data in Excel format along with relevant images and diagrams. It is carefully compiled using standard methods for the analyses performed.

If a more detailed report is required, RISE has the capacity to provide a comprehensive scientific report based on the results and background information supplied by the customer, available upon request and quotation.

The delivery of results is scheduled based on our order backlog and the scope as well as the complexity of your assignment. We aim to ensure that your results are delivered on time, taking into account the specific requirements of your project. Thank you for your understanding and patience as we work to provide you with the best possible service.

We offer the possibility of express delivery for analysis results to our customers. With our express delivery service, you can receive your results even faster, enabling you to take action or make decisions without unnecessary delay. Please note that express delivery is available at an additional cost. Feel free to contact us for more information on pricing and availability for the express delivery option. We are here to assist you and provide your analysis results in a timely manner according to your preferences.

ISO 14453, SCAN CM 49, SCAN-CM 71, ISO 1762, ISO 692