August 26th
Starting from October 1, 2010, China will formally implement the standard for paints in toys, “GB 24613-2009 Limits for Harmful Substances in Toy Coatingsâ€. This standard specifies the five types of harmful substances in children's toy coatings, among which Including total lead content ≤ 600 mg/kg, volatile organic compounds (VOC) ≤ 720 g/L, benzene content ≤ 0.3%, toluene, ethylbenzene, xylene ≤ 0.3%, and eight soluble elements, six kinds of phthalates Formic acid ester limit requirements. The inspection and quarantine department reminded relevant toy manufacturers to pay close attention. According to experts, toys and toys as materials for toys that are directly used to contact children have been used in recent years. The requirements for safety in use have been the focus of attention in the United States and other developed countries and regions. Corresponding targeted standards and regulations have also been introduced, such as the United States. CPSC regulations, Canada's "Dangerous Products Act", EU Toy Safety Directive 2009/48/EC, etc. all have fairly strict requirements for total lead, eight soluble elements, and phthalates; experts say that China's implementation of The “Restrictions on Hazardous Substances in Toy Coatings†standard is relatively consistent with the relevant regulations in European and American countries and regions, and its limit requirements are basically consistent with foreign standards, and the restrictions are more comprehensive.
At present, according to China's "Regulations on Imports and Exports of Toy Inspection Regulations", export toys should be inspected in accordance with the technical regulations and standards of the importing country or region. If there is no explicit stipulation in the importing country or region, the mandatory requirements of China's national technical specifications shall be followed. The implementation of the inspection means that the paints in toy products exported to most countries other than Europe and the United States will be implemented in accordance with the provisions of GB 24613-2009. Here, the inspection and quarantine department reminds the relevant toy manufacturers to do the following work: strictly control the raw materials, and check whether the technical parameters of the hazardous materials used meet the standard requirements, especially the total lead, phthalates, Eight indicators of eight soluble elements; comprehensively inspect the quality of existing products and analyze problems. At present, there is still a period of transition from the implementation of standards. Toy manufacturers should conduct pest detection on existing products to understand whether the products of the company meet the requirements of the new standard. The problem can be investigated in advance in the case of exceeding the standards. For companies that do not have testing conditions, The local inspection and quarantine department can be contacted for related inspections; the production process is upgraded and updated, and benzene substances are widely used as excellent solvents in paint production, while the new standards impose strict regulations on benzene substances, and therefore Enterprises that use such coatings can apply water-based paints, powder coatings, etc.; establish effective quality control measures to avoid excessive product harmful substances in the production process and ensure long-term product quality.
Light-emitting diodes, referred to as LEDs for short, are commonly used light-emitting devices that emit energy through the recombination of electrons and holes, and are widely used in the field of lighting. [1]
Light-emitting diodes can efficiently convert electrical energy into light energy and have a wide range of uses in modern society, such as lighting, flat panel displays, and medical devices. [2]
This kind of electronic component appeared as early as 1962. In the early days, it could only emit low-luminosity red light. Later, other monochromatic versions were developed. The light that can be emitted has spread to visible light, infrared and ultraviolet light, and the luminosity has also increased to a considerable luminosity. And the purpose is also as indicator light, display board, etc. from the beginning;
With the continuous advancement of technology, light-emitting diodes have been widely used in displays and lighting.
Light-emitting diodes are simply referred to as LEDs. It is made of compounds containing gallium (Ga), arsenic (As), phosphorus (P), nitrogen (N), etc.
When electrons and holes recombine, it can radiate visible light, so it can be used to make light-emitting diodes. Used as indicator lights in circuits and instruments, or composed of text or digital displays. Gallium arsenide diodes emit red light, gallium phosphide diodes emit green light, silicon carbide diodes emit yellow light, and gallium nitride diodes emit blue light. Due to chemical properties, it is divided into organic light-emitting diode OLED and inorganic light-emitting diode LED.
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