Insize Grit Blasting Surface Roughness Specimen The Insize ISR-CS018 is a precision reference kit for evaluating surface roughness after shot or grit blasting. Ideal for surface preparation before coating or painting, it meets ISO 8503/1 standards. Made from rust-resistant pure nickel, the set includes 4 specimens with varying roughness levels (Ra and Rz), ensuring accurate texture measurements for quality control in industrial applications. Specifications : Part No: ISR-CS018 Machining Method: Grit blasting (pre-blast surface texture) Material: Rust-proof, pure nickel Quantity: 4 specimens Roughness (Ra): 3.2, 10.5, 18, 25 µm Roughness (Rz): 19.2, 63, 108, 150 µm Standards Compliance: ISO 8503/1 Product Features: Ideal for checking, identifying, and specifying surface texture symbols Well-designed and durable, the Insize ISR-CS018 Surface Roughness Specimen offers a precise and reliable means for verifying surface texture after shot and grit blasting. Its rust-resistant, pure nickel construction and compliance with ISO 8503/1 standards ensure long-lasting performance and consistency, making it an essential tool for professionals in the coating and quality control industries.