Presbyopic glasses also known as reading glasses, is a kind of optical products for glasses for presbyopia people, belong to a kind of convex lens.presbyopia glasses are mainly to meet the needs of the eye presbyopia crowd.
Teencher Inspection team consists of professional quality control and international trade experts, each member with extensive inspection experience and very strong sense of service. our inspection can help you to reduce logistics costs, return risk, complaints, compensation and potential brand reputation due to quality problems.
1. eyewear quality Inspection Environment and Requirement
-Requirement for place of third party inspection China:Light from a power of at least 500 Lux.
-Perspective:The products must be tested by every angle.
-Distance of viewing:In doubts, check the products from a distance of 30 cm. If it is not visible, it is no defect. View the items by various angles2.Visual NonConformities Standard
Visual nonconformities as stated below are typical defects during production and must be handled either by means of suitable measuring or comparison practices. A practical method is to compare defects either against the specification guide or against provided samples.
-Not permitted any sharp point/sharp edge.
-Not permitted infestation of live insect.
-Not permitted mildew products.-Not permitted heavily odor.
-Not permitted rust,pell off coating etc.
-Not permitted missing printing,poor printing etc.
-Not permitted poor electroplating etc.
-Not permitted burr mark,flash mark,abasion mark,scratch mark etc.
-Not permitted crease mark,burn mark,water spot,color stain,oil stain etc.
3.Field Test & Measurement
-Color shade check
-Function check
-Smell check
-Product dimension check
-Product weight check
-Barcode readability check
-SPH check
-PD check
-Rub test
-Tape test
-Color box/Selling packing dimension check
-Color box/Seling packing weight check
-Quantity per carton check
-Carton dimension check
-Carton gross weight check
-Carton drop test