Standards

YY 0621-2008 Replaced

YY 0621-2008 Metal-ceramic dental restorative systems

This standard specifies the performance requirements and test methods for dental metal materials (manufactured by casting or machining) and ceramics used in the fabrication of dental metal porcelain restorations, as well as the performance requirements and test methods for metal-porcelain composites. The performance requirements of this standard apply to metal materials and ceramics used in combination, but not to metal materials or ceramics used separately.

Publish Date: 2008-04-25

YY 0622-2008 Active

YY 0622-2008 Dental resin-based pit and fissure sealants

This standard specifies the performance requirements and testing methods for resin-based materials used to seal dental pits and fissures. This standard applies to resin-based materials that are either chemically cured or cured with external energy.

Publish Date: 2008-04-25

YY 0624-2008 Replaced

YY 0624-2008 Dentistry—Orthodontic products—Orthodontic elastomeric auxiliaries

This standard applies to all elastic products used in orthodontics, which play a therapeutic role in conjunction with fixed or removable orthodontic appliances, either inside or outside the mouth. Elastic products include latex elastic traction rings, rubber chains, elastic wires, tie rings for fixed archwires, and space maintainers for tooth separation.

Publish Date: 2008-04-25

YY 0625-2008 Replaced

YY 0625-2008 Dentistry—Orthodontic Products:Wires

This standard specifies the requirements and test methods for orthodontic wires used in the fabrication of fixed and removable orthodontic appliances. It includes preformed orthodontic arch wires, but excludes springs and other prefabricated products.

Publish Date: 2008-04-25

YY 0626-2008 Active

YY 0626-2008 Dental casting alloys with noble metal content of at least 25% but less than 75%

This standard specifies the classification, requirements, test methods, and packaging, labeling, and user manuals for dental casting precious metal alloys (hereinafter referred to as casting alloys) with a precious metal content (mass fraction) of 25% to 75%.
This standard applies to casting alloys used in the manufacture of dental restorations and devices.

Publish Date: 2008-04-25

YY 0627-2008 Replaced

YY 0627-2008 Medical electrical equipment—Part 2-41:Particular requirements for the safety of surgical luminaries and luminaries for diagnosis

This dedicated standard details the requirements for surgical shadowless lamps and diagnostic lighting lamps (hereinafter referred to as "equipment") defined in 2.101 to 2.105.

Publish Date: 2008-04-25

YY 0634-2008 Replaced

YY 0634-2008 Ophthalmic instruments—Fundus cameras

This standard specifies the requirements and test methods for fundus cameras. Fundus cameras are used for fundus imaging. This standard does not apply to the following types of fundus cameras: - Fundus cameras for synchronous stereoscopic imaging; - Fundus cameras whose illumination sources for observation systems use infrared radiation.

Publish Date: 2008-04-25

YY 0635.1-2008 Replaced

YY 0635.1-2008 Inhalational anaesthesia systems—Part 1:Anaesthetic breathing system for adults

This part of YY 0635 specifies the dedicated requirements for inhalation anesthesia breathing systems intended for adults, which are provided or assembled by manufacturers, or assembled by users under the guidance of manufacturers. This standard also includes requirements for circulating absorption components, exhaust valves, inhalation and exhalation valves, and components of anesthesia breathing systems that make up anesthesia workstations in some designs, including the exhalation gas channels of anesthesia ventilators and any parts of the anesthesia gas purification system (AGSS) that can be disassembled by non-operators.

Publish Date: 2008-04-25

YY 0636.1-2008 Replaced

YY 0636.1-2008 Medical suction equipment—Part 1:Electrically powered suction equipment—Safety requirements

This part of YY 0636 specifies the minimum safety and performance requirements for medical and surgical suction devices (see Figure 1). These suction devices can be used in hospitals and other health institutions, for patient home care, and in field and transportation situations.

Publish Date: 2008-04-25

YY 0636.2-2008 Replaced

YY 0636.2-2008 Medical suction equipment—Part 2:Manually powered suction equipment

This part of YY 0636 specifies the safety and performance requirements for manually operated suction devices used for pharyngeal suction. It includes suction devices operated by foot pedal, manual operation, or a combination of both (see Figure 1). The scope of this part of YY 0636 includes non-electric suction devices that can be combined with electrical equipment.

Publish Date: 2008-04-25

YY 0636.3-2008 Replaced

YY 0636.3-2008 Medical suction equipment—Part 3:Suction equipment powered from a vacuum or pressure source

This part of YY 0636 specifies the safety and performance requirements for medical suction devices powered by negative pressure or pressure sources (see Figure 1). It is particularly suitable for pipe connections and Venturi tube add-on devices. Suction devices containing electrical control elements (such as electronic timers) should also comply with the requirements of GB 9706.1—2007.

Publish Date: 2008-04-25

YY 0637-2008 Replaced

YY 0637-2008 Medical electrical equipment—Requirement for the safety of radiotherapy treatment planning system

This standard applies to the design, manufacture, installation, and use of radiation therapy planning systems (hereinafter referred to as RTPS);
——Applied in medical settings for formulating radiation therapy plans;
——The input data can either be entered by the operator or obtained directly from other devices;

Publish Date: 2008-04-25