YY/T 0764-2025 Pending

YY/T 0764-2025 Ophthalmic instruments—Projected and electronic chart displays for visual acuity measurement

This document specifies the requirements for projectors and electronic vision charts (hereinafter referred to as "vision charts") used for visual acuity measurement, the accompanying documents and markings, and describes the corresponding test methods.
This document is applicable to projectors and electronic vision charts used for visual acuity measurement.

Publish Date: 2025-06-18

YY 0710-2025 Pending

YY 0710-2025 Dentistry—Polymer-based crown and veneering materials

This document specifies the classification and requirements for polymer-based dental crowns and veneer materials, and describes the test methods used to determine whether these requirements are met.
This document applies to polymer-based dental crowns and veneer materials used in dental laboratories (dental fabrication rooms or dental craft rooms) to produce formal dental crowns or veneers, and also to polymer-based dental crowns and veneer materials that manufacturers claim can be adhered to the base structure without the need for macroscopic mechanical retention (such as beads or threads).

Publish Date: 2025-06-18

YY/T 0679-2025 Pending

YY/T 0679-2025 Steam and formaldehyde sterilizers

This document specifies the type and marking, as well as the requirements, of steam formaldehyde sterilizers (hereinafter referred to as sterilizers), and describes the corresponding test methods.
This document is applicable to sterilizers that use a mixture of steam and formaldehyde gas to sterilize heat-sensitive medical items.

Publish Date: 2025-06-18

YY 0621-2025 Pending

YY 0621-2025 Dentistry—Compatibility testing for metal-ceramic and ceramic-ceramic systems

This document specifies the requirements for evaluating the thermodynamic compatibility between the surface porcelain and the metal or ceramic base materials used in dental restorations, and describes the corresponding test methods.
This document is only applicable to materials used in combination. A claim of compliance cannot be made for single materials.
The requirements for ceramic materials are specified in GB 30367. The requirements for metal materials are specified in GB 17168.

Publish Date: 2025-06-18

YY/T 0528-2025 Pending

YY/T 0528-2025 Dentistry—Corrosion test methods for metallic materials

This document describes the test method for detecting the corrosion behavior of metal materials used in the oral cavity, so that the test method in this document can be referenced in the standards for such metal materials.
This document is not applicable to medical devices and equipment.

Publish Date: 2025-06-18

YY/T 0310-2025 Pending

YY/T 0310-2025 General specifications for X-ray equipment for computed tomography

This document specifies the composition and requirements of X-ray computed tomography equipment (hereinafter referred to as CT scanning devices), and describes the corresponding test methods.
This document is applicable to CT scanning devices, including those used to provide image data for radiation therapy planning.

Publish Date: 2025-06-18

YY 0300-2025 Pending

YY 0300-2025 Dentistry—Artificial teeth for dental prostheses

This document specifies the classification and requirements for polymer and ceramic teeth used in dental restorations, and describes the corresponding testing methods.
This document is applicable to synthetic resin and ceramic teeth products used in dental restorations.

Publish Date: 2025-06-18

YY 9706.287-2025 Pending

YY 9706.287-2025 Medical electrical equipment—Part 2-87:Particular requirements for basic safety and essential performance of high-frequency ventilators

This document specifies the basic safety and performance requirements for high-frequency ventilators (HFV) used in combination with accessories (hereinafter referred to as "ME devices").
This document applies to patients who may be at risk of life-threatening conditions and require comprehensive care and continuous monitoring in professional medical institutions, operated by professional medical staff. It provides high-frequency ventilation of more than 150 breaths per minute for patients requiring different levels of artificial ventilation support, including those dependent on ventilators.
Note 1: In this document, such environments are referred to as critical care environments. High-frequency ventilators used in such environments are considered life-support devices.
Note 2: In this document, such high-frequency ventilators can provide transport in professional medical institutions (e.g., as a functioning ventilator during transport).
Note 3: High-frequency ventilators used for transport in professional medical institutions are not considered emergency medical service environment ventilators.
Note 4: HFVs are primarily categorized into three types: — High-frequency percussive ventilation (HFPV, typical HFV frequency: 60 breaths per minute to 1,000 breaths per minute); — High-frequency jet ventilation (HFJV, typical HFV frequency: 100 breaths per minute to 1,500 breaths per minute); — High-frequency oscillatory ventilation (HFOV, typical HFV frequency: 180 breaths per minute to 1,200 breaths per minute, typically with an active exhalation phase).
Additionally, HFV nomenclature may be combined or used in conjunction with ventilators operating at a frequency below 150 breaths per minute.
*High-frequency ventilators are not considered physiological closed-loop control systems, unless they use patient physiological variables to adjust ventilation therapy settings.
This document also applies to accesso

Publish Date: 2025-02-26

YY/T 1957-2025 Pending

YY/T 1957-2025 Vacuum washer-disinfectors

This document specifies the performance requirements for negative pressure cleaning and disinfection devices and describes the corresponding test methods.
This document applies to cleaning and disinfection devices that have a negative pressure cleaning function and comply with the applicable provisions of YY/T 0734.1 and the corresponding dedicated standards.
This document does not apply to cleaning and disinfection devices that do not have a negative pressure cleaning function.

Publish Date: 2025-02-26

YY 0459-2025 Pending

YY 0459-2025 Implants for surgery—Acrylic resin cements

This document specifies the physical, mechanical, labeling, and packaging requirements for non-radiopaque and radiopaque curable polymer resin bone cements primarily based on polymethyl methacrylate. These two types of bone cements are intended for use in syringes or in a dough-like state, and are primarily applied for internal fixation of prostheses in artificial joint replacement surgeries. The bone cements are provided in a set of measured sterile powders and sterile liquids, suitable for mixing at the time of implantation.
This document does not address the risks to patients or bone cement users during the use of bone cement.
All requirements and all tests apply only to sterile products.
Note: For other types of bone cements not intended for artificial joint replacement, refer to this document for guidance.

Publish Date: 2025-02-26

YY 0267-2025 Pending

YY 0267-2025 Extracorporeal systems for blood purification—Extracorporeal blood and fluidcircuits for haemodialysers,haemodiafilters,haemofilters and haemoconcentrators

This document specifies the requirements for single-use extracorporeal circulation blood/fluid circuits (hereinafter referred to as extracorporeal circulation blood/fluid circuits) and accessories used in conjunction with blood dialysis, hemodialysis, hemofiltration, and blood concentration, and describes the corresponding test methods.
This document applies to single-use extracorporeal circulation blood/fluid circuits and accessories used in conjunction with blood dialysis, hemodialysis, hemofiltration, and blood concentration.
This document does not apply to: — Hemodialysis machines, hemodialysis filters, or hemofiltration filters; — Plasma separators; — Blood perfusion devices; — Vascular access devices.
Note 1: The requirements for hemodialysis machines, hemodialysis filters, hemofiltration filters, and blood concentrators are specified in YY 0053.
Note 2: The requirements for plasma separators are specified in YY 0465.

Publish Date: 2025-02-26