The ISO 4525-2003 standard specifies technical requirements for the application of nickel-plus-chromium platings on plastic materials. Such platings can be used on plastics with copper or nickel undercoating to ensure that requirements for thermal cycling performance are met. The standard supports the trend of nickel replacing traditional copper undercoating to enhance the recyclability of coatings. The standard does not apply to plastic coatings for engineering purposes, emphasizing the importance of following Eletroplating instructions from proprietary process providers to ensure coating performance. The new revised edition takes into account the latest developments and technologies in chrome-plated coatings and aims to improve the mass and environment friendliness of plastic Eletroplating coatings.