GB15208.5-2018
Micro-dose X-ray security inspection system—Part 5:Backscatter object security inspection system
微剂量X射线安全检查设备 第5部分：背散射物品安全检查设备
GB 15208.5-2018 is a current mandatory Chinese national standard for Micro-dose X-ray security inspection system—Part 5:Backscatter object security inspection system. It appears in the Machinery compliance cluster with a product safety focus and has an implementation date of Dec 1, 2019.
Applicability depends on product scope, certification route, competent authority notices and transition rules. Requst for the translation or verify source before using this record in a compliance decision.
Compliance overview
Scope and applicability
This standard applies to the design, manufacturing, assembly, acceptance, and use of micro-dose X-ray backscatter object security inspection systems. It specifically covers equipment utilizing X-ray backscatter imaging technology for baggage and container/vehicle inspection. Please note that this standard does not apply to portable backscatter security inspection equipment.
Technical requirements
This standard establishes mandatory technical requirements for backscatter X-ray systems, focusing heavily on imaging performance and radiation safety. The core performance indicators include backscatter penetration, which defines the ability to resolve organic materials behind a specified thickness of steel, and backscatter spatial resolution, evaluated using polyethylene line pairs. Additionally, the standard sets limits for backscatter wire display and backscatter wire detection, which measure the device's ability to resolve single polyethylene rods and solid copper wires against various backgrounds. It also dictates the required backscatter contrast sensitivity to differentiate thin organic materials from thicker organic backgrounds, along with minimum inspection speed requirements. For safety, the standard mandates strict limits on single inspection dose and ambient dose equivalent rate to ensure operator and environmental safety. Compliance with general requirements for electrical safety, electromagnetic compatibility, and environmental adaptability must align with the referenced GB 15208.1-2018.
Testing methods
Testing involves using specific, standardized test bodies (detailed in the appendices) to evaluate image quality metrics. Key procedures include the backscatter penetration test using arrow-shaped polyethylene test cards behind steel plates, and the spatial resolution test utilizing varying polyethylene line pairs. Radiation safety is assessed through the single inspection dose test and the ambient dose equivalent rate test, which utilizes a soft pine wood scattering body to simulate inspected objects. For open-style equipment, specific workplace dose level testing must be conducted at the supervision zone boundary.
FAQs
What products are regulated under GB 15208.5-2018?
The standard regulates micro-dose X-ray backscatter object security inspection systems used for baggage and containers/vehicles. It explicitly excludes portable backscatter inspection devices.
Is compliance with GB 15208.5-2018 mandatory?
It is a mandatory national standard. All technical requirements specified within the document are compulsory for the design, manufacturing, assembly, acceptance, and use of the regulated equipment.
How does GB 15208.5-2018 relate to other inspection standards?
It defines specific backscatter performance metrics such as backscatter penetration and backscatter contrast sensitivity, and refers to GB 15208.1-2018 for general safety, electromagnetic compatibility, and environmental requirements.
The summary above provides a high-level overview of GB 15208.5-2018. To ensure complete compliance for your products entering the Chinese market, a precise and professional translation of the full technical specifications is essential. Purchase our high-quality English translation of GB 15208.5-2018 today to access all detailed parameters, tables, and testing procedures.
Applicability hints
- Type
- Product
- CCS
- A91
- ICS
- 13.310
- Competent department
- Ministry of Public Security
- Technical committee
- National Technical Committee on Security Alarm Systems of Standardization Administration of China