To ensure that textiles and clothing are harmless to human health, China’s mandatory national standard GB 18401-2010 “Basic Safety Technical Specifications for National Textile Products” sets basic safety technical requirements for textile clothing and categorizes the technical requirements into three safety categories A, B, and C based on the strictness of the indicators: Category A … Read more
▼ Follow the public account below for more information ▼ In high-voltage PCB design, attention must be paid to electrical clearance and creepage distance in switch mode power supply PCB design; insufficient distance can lead to leakage. General standards (varying by industry, such as lighting, electric vehicles, etc.) require certified products: design according to standard … Read more
Building a Safe Environment Protecting Children’s Growth Beilin District Health Bureau To thoroughly implement the national decision-making and deployment regarding the construction of the childcare service system during the 14th Five-Year Plan, and to accelerate the establishment of a “doorstep” inclusive childcare service network, Beilin District is closely monitoring the goal of constructing community embedded … Read more
1. National Safety Standards for Wi-Fi Radiation.1) According to the safety limits set by the International Commission on Non-Ionizing Radiation Protection, the safe radiation range for the human body is “10 watts/square meter”.2) The electromagnetic wave frequency range of Wi-Fi signals is generally from 2.4 GHz to 5 GHz, which is quite close to the … Read more
ForewordForeword Regarding Saudi battery regulations, would you say why official documents are not in Arabic? SummarySummary Full name《Saudi Standards, Metrology and Quality Organization SASO Technical Regulation for Electric Batteries》 Full name:《Saudi Standards, Metrology and Quality Organization SASO Technical Regulation for Electric BatteriesSASOTechnical Regulation for Electric Batteries》 This regulation aims to lay out the essential health … Read more
The multimeter is a multifunctional, multi-range instrument that is widely used and favored by electrical technicians. It can easily measure various electrical parameters such as insulation resistance, low resistance, general resistance, voltage, current, capacitance, diodes, frequency, duty cycle, and TYPE K temperature, playing a crucial role in the maintenance, repair, and troubleshooting of electrical systems. … Read more
【Practical Application First】 The proficient application of Siemens SIMATIC series PLCs relies on continuous project training. It is recommended that engineers start with the S7-1200 entry-level PLC and practice ladder diagram programming simulations using the TIA Portal software. In automotive welding workshop projects, one can attempt to build a basic conveyor control system, gradually expanding … Read more
In the wave of global trade, countries have established various product certification standards to protect the rights of their consumers and maintain market order. For companies looking to enter the Gulf Cooperation Council (GCC) member states market, GCC certification is an indispensable “key”. This article will provide a detailed introduction to the steps and related … Read more
There are so many helmets on the market today that choosing a new one can be overwhelming. We know that helmets have passed the necessary impact safety tests, but is that enough? Many manufacturers aim to stay ahead of those testing standards to create safer helmets. Reducing rotational forces after an impact is currently a … Read more
On many circuit boards or electronic products, we often see the following symbols, for example: FCC, CE, Hand Symbol, and Trash Can Symbol on Atmel Development Boards RoHS and RU Symbols on NXP Development Boards Hand Symbol, Trash Can Symbol, and Pb Symbol on NXP Development Boards CE and FCC Symbols on Arduino Development Boards … Read more