?    Service Background

Glasses are composed of lenses and frames, which are lens lenses embedded in the frame and worn in front of the eyes to improve vision, protect eyes or for decorative. Some special used glasses, such as myopia glasses, polarized lenses, aging glasses, etc., have become indispensable articles in the lives of certain people due to their proprietary properties. With the improvement of living standards, people's demand for glasses is getting higher and higher. In addition to their functional requirements, the requirements for appearance, materials, and wearing comfort are also getting more attention. Every country has strict quality requirements for glasses including frames and lenses. CTI provides a comprehensive one-stop solution for glasses enterprise including testing, inspection, and inspection.

?     Scope

 Glasses frame, sunglasses, polarized glasses, ordinary glasses, aging glasses, children glasses, protective goggles, swimming goggles.

?    Test Standards 

?    Test Items

Glasses frame: size of frame, high temperature dimensional stability, resistance to sweat corrosion, the bridge deformation, resistance to fatigue, flame retardant, tensile properties, nickel release, etc.

Lens: vertex power tolerance, column lens axis tolerance, transmittance requirement, simulated sunlight exposure, transmittance and reflectance, optical center and prismatic tolerance, etc.

Sunglasses: transmittance, simulated sunlight exposure, scattered light, minimum firmness, the bridge deformation and lens holding force, nickel release, flame retardant, structure, etc.

Aging glasses: mechanical strength, transmittance and average reflectance, optical degree, resistance to sweat corrosion, size tolerance, structure and flame retardant, etc.

Swimming goggles: material composition, impact strength, water sealing, eye cup seal adhesion, wearing materials and skid resistance of headband, etc.

Ski goggles: vision, optical degree, transmittance, ratio to scattering, resistance to UV radiation, mechanical strength, waterproof and snow performance, antifog, shakeout test, etc.

?    Sample Requirements

Depends on the products, test standard, test items.

?    Our Strengths

1) CTI brand influence: As the forerunner in testing and verification services for Chinese companies, CTI is the leading comprehensive third-party agency specializing in testing, calibration, inspection, certification, and technical services through provision of a one-stop solution for clients of all types and sizes.

2) CTI has an extensive network distribution and provides fast localization services.

3) CTI has an efficient and independent laboratory that can provide professional and reliable testing services.

4) CTI has long-term responsibility for market supervision and random inspection of the country, provinces and cities.

?     Service Process

Consult customer service representatives → Confirm the test programs →Fill out the application form→ Send test samples→ Pay for the tests→ Send reports and invoices