Home Testing Standards TAPPI Testing
Paper and packaging manufacturers often face challenges like inconsistent material quality, insufficient strength, and performance variability under real-world conditions—TAPPI paper testing provides standardized methods to ensure their products meet rigorous quality and performance standards. At Purple Diamond, our comprehensive range of TAPPI-standard tests includes evaluations such as Basis Weight, Cobb Test, and more, catering to various industries and applications. Whether you’re optimizing corrugated packaging or verifying the tensile strength of paper products, we are here to help you achieve compliance and excellence.
TAPPI testing refers to standardized procedures developed by the Technical Association of the Pulp and Paper Industry (TAPPI) for evaluating pulp, paper, packaging, and related products. With over 8,000 members, this non-profit organization provides technical expertise, networking opportunities, and educational resources.
Here at Purple Diamond, we use TAPPI’s standards to test paper and corrugated packaging products. In our state-of-the-art materials lab, our team has the ability to test various aspects of your paper packaging, including basis weight, bond strength, ink rub, water absorbency, moisture content, and more.
Purple Diamond is a proud TAPPI Testing Lab
Want to learn more about our TAPPI testing services? Fill out the form below!
"*" indicates required fields
All Tappi paper testing procedures are developed through the consensus of a technical working group of industry experts. These diverse procedures can assess the strength of shipping containers, the durability of corrugated materials, & the moisture resistance of paper products.
Please click on each standard to learn more about the specific testing method we offer here at Purple Diamond.
109.6 million corrugated boxes are shipped across the US daily, and one in ten of those boxes arrives at their end destination damaged. This results in broken products, unhappy customers, and millions of dollars in losses. So, does your packaging hold up to the rigors of transportation?
By subjecting your boxes to various TAPPI tests—such as edge crush, flat crush, and bursting strength assessments—you can verify the structural integrity and protective capabilities of your packaging under real-world conditions. These tests not only expose potential weaknesses but also provide actionable insights to improve the durability and effectiveness of your packaging designs. By partnering with a package testing lab, you’ll know that every shipment is backed by reliable, tested packaging that minimizes damage and protects your clients’ products every step of the way, allowing you to sell more confidently and set a new standard of quality in the industry.
Struggling with inconsistent quality in your corrugated or paper packaging? Our reliable TAPPI testing provides the insights you need to overcome challenges and meet industry standards.
At Purple Diamond, we bring unmatched precision to your corrugated box and paper packaging testing. Our ISO 17025-accredited lab combines cutting-edge technology with decades of technical expertise.
We go beyond simply providing test results—we deliver comprehensive reporting and actionable insights that empower you to enhance product quality, reduce waste, and ensure compliance with industry standards. Whether you’re optimizing corrugated packaging strength, improving moisture resistance, or testing the durability of shipping containers, Purple Diamond is your trusted partner for packaging excellence. Request a consultation today to discover TAPPI paper testing from Purple Diamond.
Whether you’re looking for a team of experts to engineer your new packaging product for optimal sustainability, or seeking a team who can ensure your products stay safe and secure during transport, Purple Diamond can help.
© 2025 Purple Diamond