Your Partner for Reliable Building Material Inspections in China
2023-4-22
At NBN, we understand the importance of quality control in the building materials industry. With over 150 kinds of building materials tested and inspected, we have the expertise and experience to ensure that your products meet safety standards and function as intended.
Our building material inspection services are designed to optimize your supply chain, enhance your brand reputation, and maximize long-term profits. From wall and floor materials to kitchen and bathroom fixtures, we offer comprehensive inspection and verification services at every stage of the supply chain.

Our inspection process is based on the NBN building material checklist, which covers function, workmanship, specification, size, labeling, and packaging. We also conduct diversified tests, including measuring tests, mechanical and physical performance tests, and water resistance tests.
Our inspection reports provide you with a strong evidence for approving shipment or prepare corrective measures. We use industry-standard sampling and inspection standards, including ANSI/ASQC Z1.4 (ISO2859-1) and Acceptable Quality Limits (AQL), to ensure that your products meet all requirements of the order and are safe and in compliance.
Some of the main tests we conduct include:
Carton drop test: We test the durability of packaging to ensure that your products are protected during shipping.
Function test: We test the functionality of your products to ensure that they work as intended.
Surface flatness test: We test the flatness of surfaces to ensure that they meet specifications.
Color shading check: We check for color consistency to ensure that your products meet design requirements.
Assembly & fitting test: We test the ease of assembly and fitting to ensure that your products can be installed correctly.
Capacity check: We test the capacity of your products to ensure that they meet specifications.
Pressure test: We test the resistance of your products to pressure to ensure that they are safe to use.
Strain relief test: We test the strength of connections to ensure that they can withstand strain.
Torsion test: We test the resistance of your products to twisting to ensure that they are durable.
Moisture content test: We test the moisture content of your products to ensure that they meet specifications.
Plating thickness test: We test the thickness of plating to ensure that your products meet design requirements.
Durability test: We test the durability of your products to ensure that they can withstand regular use.
Water resistance test: We test the resistance of your products to water to ensure that they are safe to use in wet environments.
Flowing rate test: We test the flowing rate of your products to ensure that they meet specifications.
Water leaking test: We test for water leaks to ensure that your products are water-tight.
Sharp point and sharp edge check: We check for sharp edges and points to ensure that your products are safe to use.
Waterproof test: We test the water resistance of your products to ensure that they are safe to use in wet environments.
Abuse test: We test the durability of your products to ensure that they can withstand abuse.
Adhesive test: We test the strength of adhesives to ensure that your products are durable.
Smell test: We test for any unpleasant smells to ensure that your products are safe to use.
At NBN, we are committed to providing you with reliable, cost-effective inspection services that help you achieve your quality control goals. Contact us today to learn more about how we can help you optimize your supply chain and enhance your brand reputation in the building materials industry.