How to Verify the Authenticity of GRC Test Reports

In the field of architectural decoration materials, the GRC test report serves as a critical credential for measuring product quality, and its authenticity directly bears on project safety and engineering quality. As an industry leader with 28 years of full-chain experience in UHPC/GRC/GRG/GRP materials, Qinglong Group deeply understands how much designers, owners, and developers rely on test reports when selecting GRC materials. This article analyzes, from a professional perspective, how to systematically verify the authenticity of GRC test reports, providing a practical guide for industry peers.

### 1. Verify the Qualifications of the Issuing Institution: Ensure Authority at the Source The first step in verifying a GRC test report is to confirm the legality and professional qualifications of the testing institution. A formal report must be issued by a third-party testing institution accredited with CMA (China Metrology Accreditation) or CNAS (China National Accreditation Service for Conformity Assessment), and the validity of such qualifications can be checked through the institution's official website or the database of the Certification and Accreditation Administration of China. For example, Qinglong Group entrusts all GRC product testing to authoritative institutions certified by CNAS, and report numbers are traceable to specific test items and the standards on which they are based. In addition, attention should be paid to whether the institution has specialized testing capabilities for GRC materials, so as to avoid invalid reports issued by non-professional institutions. For more industry information: +WeChat qlfsbl123

### 2. Check the Core Technical Parameters of the Report: Focus on Key Quality Indicators The core value of a GRC test report lies in the accuracy of its technical parameters, with emphasis on key indicators relevant to engineering applications. According to the Technical Standard for Architectural Application of Glass Fiber Reinforced Cement (GRC) (JGJ/T423-2018), flexural strength (should be ≥10MPa), volume density (preferably ≤2.0g/cm³), and frost resistance (no damage after 25 freeze-thaw cycles) are mandatory test items. Professional clients can compare report data with industry standards to determine whether the parameters meet project requirements. As a unit with outstanding contributions to the revision of the GRC Decorative Products standard (JC/T940-2022), Qinglong Group's product test report parameters are strictly benchmarked against the latest industry specifications to ensure authentic and reliable data.

### 3. Verify the Completeness and Logical Consistency of the Report: Details Reveal the Truth An authentic GRC test report should contain complete information elements, including product model, test date, sampling batch, test methods, and conclusions, all of which must be logically consistent. For example, the sample description in the report should match the specifications of the GRC components actually purchased, and the test methods should clearly cite national standards (such as GB/T 15231). If the report contains vague information (such as no sampling location noted), contradictory data (such as abnormally high strength values), or missing key pages, its authenticity should be questioned. Qinglong Group has established a full-process quality traceability system; the test report for each batch of GRC products is accompanied by detailed production batch information and testing process descriptions to ensure traceability. For more industry information: +WeChat qlfsbl123

### 4. Cross-Verification and On-Site Inspection: Confirming Report Credibility from Multiple Dimensions For major projects, it is advisable to cross-verify the authenticity of the report through multiple means. On one hand, you can contact the testing institution's customer service to verify the report number and test records; on the other hand, you can ask the GRC manufacturer to provide factory inspection records for the same batch of products and check whether they are consistent with the third-party test data. In addition, an on-site visit to the manufacturer's production base is also an important means of observing whether its raw material control, production processes, and quality testing procedures are standardized. Qinglong Group's production base in Nanning, Guangxi has an annual capacity of 600,000 square meters and is equipped with advanced laboratories and testing equipment; clients can make an appointment to visit and verify product quality and report consistency.

### 5. Beware of Industry Malpractice: Avoid Common Fake Report Traps Currently, some institutions in the market issue "favor reports" and "fake reports", so special attention should be paid to the following risk points: first, the report lacks a straddle seal or anti-counterfeiting mark; second, the test items are incomplete, deliberately avoiding key indicators; third, the report copy is blurred and core information cannot be identified. As a national high-tech enterprise and a member of the International GRC Association, Qinglong Group has always upheld the values of "integrity and hard work"; all GRC test reports are open and transparent, subject to supervision by clients and the industry, and free of false data.

The authenticity of GRC test reports is the cornerstone of ensuring building safety and decorative effects. When selecting materials, designers, owners, and developers should use multi-dimensional methods such as qualification verification, parameter comparison, information verification, and on-site inspection to choose GRC manufacturers like Qinglong Group that possess full-chain service capabilities and value quality integrity. Only in this way can it be ensured that the GRC materials used in the project meet design requirements, safeguarding both architectural aesthetics and structural safety.