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Why GRC Testing Standards Matter

GRC products must comply with both national industry standards and internal corporate standards. The primary national standard is JC/T 940 (Glass Fiber Reinforced Cement Decorative Products), which defines technical requirements, testing methods, and inspection rules.

Qinglong GRC has built a comprehensive internal standard system that exceeds national requirements on multiple metrics. For example, the national standard requires flexural strength ≥ 15 MPa; Qinglong's corporate standard raises this to ≥ 18 MPa. National standard water absorption ≤ 12% is tightened to ≤ 10%. This stricter approach ensures product performance consistently surpasses industry baseline.

1. National Standards

JC/T 940 is the foundational standard, covering technical specifications. GB/T 17671 defines test methods. These are the baseline references every GRC producer must follow.

1. National Standards

JC/T 940 is the foundational standard, covering technical specifications. GB/T 17671 defines test methods. These are the baseline references every GRC producer must follow.

2. Corporate Standard System

Top manufacturers establish internal standards stricter than national requirements. Corporate standards must be filed and registered with authorities. These standards reflect a manufacturer's true quality commitment.

3. Testing Scope

Mechanical performance testing is fundamental. Durability testing predicts service life. Appearance inspection ensures visual quality. Together, these provide a complete quality assessment.

4. Testing Methodology

Strictly follow standard test methods. Use calibrated and qualified equipment. Ensure inspectors are certified. These practices guarantee data accuracy and traceability.

Testing standards are the foundation of quality assurance. Choosing a manufacturer that follows strict standards gives you better long-term product performance. Qinglong GRC rigorously enforces standards at every step to ensure product quality.

About Qinglong GRC — Guangdong Qinglong Construction Engineering Co., Ltd. Founded 1997 (28 years). 50+ patents. Integrated R&D, design, production, sales and construction. Contact: Mr. Song, +86 139 0259 7531. Address: 302 Card, No. 22 Dongming Road, Shiqi District, Zhongshan City.