[Original] Why is it necessary to conduct the grounding resistance test? It is also known as grounding continuity test. The test should be conducted on all class I products. The purpose for the test is to ensure all conducting components of the product which can be touched by users and will turn to charged body […]
Q&A Concerning China Compulsory Certification(CCC)
1.Q: When did the China Compulsory Certification(CCC) start to be implemented? A: China Compulsory Certification has come into effect on...
A ultimate guide to Canton Fair, Guangzhou, China
Canton Trade Fair Introduction Founded in the spring of 1957, the China Import and Export Fair (Namely Canton Fair, formerly known as...
Introduction and Comparison of Major Chinese Express Companies
There are mainly three types of express companies in China, one of which is the private express company which serves as the main body of...
Test Item of CE Product
1. Input Test: Test the power, the rotating speed (RPM), voltage of motor, current of motor and air volume (L/S) at different gears. Check if the heating wires become red. 2. Insulation Withstand Voltage Test Cover the sample’s surface with metal leaf. Input the voltage of 3,750V between the metal leaf and the plug […]
Test Item of UL Product
1. Cover Strength Test Test method: Press the product at the position of air inlet and the air outlet vertically with a test finger whose diameter is 6.4mm*127mm. The force of the pressure should be 5 pounds and should last for one minute. Demand: During the test, the uninsulated electrified parts should not be touched […]
Special Test Criteria for Electrical Products Laboratory
First, Coating Adhesion Cross- Cutting Test First of all, clean the surface of product for test with a piece of cotton cloth. Then cut a 10*10mmcoated surface (flat) into 100 grids with a sharp knife, with each grid occupying an area of1 mm*1mm(make sure all the incisions should show the base material and the cuts […]
China Furniture Products Quality Control Part 1: Common Knowledge and Standard
1) Frame material: MDF / particleboard / plywood / solid wood. Now Japan’s requirements on furniture FORMALIN content are very strict, therefore, the materials shall all go through the E1 standard before export. And usually the standard falls into three categories, namely, E0/E1/E2. 2) Leather: leather / PU leather / PVC Leather: with fuzz on […]
Clothing Quality Inspection Standard (AQL)
1. General Overview of AQL Inspection AQL, the abbreviation of the acceptable quality level, is a parameter rather than an inspection standard. The Inspection of goods shall be in accordance with the bulk range, the inspection level, and the AQL to determine the number of samplings and the ratio of qualified and inferior goods. The […]