
发布时间:2024-05-27 17:49:26 - 更新时间:2024年06月29日 15:22
点击量:0
1 Przedmiotem normy s? wyci?gi radiochemiczne przeznaczone do prac z substancjami promieniotwórczymi, emituj?cymi promieniowanie alfa i beta. 2
Radiochemical fume hoods Specifications
This notice should be filed in front of MS22056B dated 19 May 1970
VALVE, CHECK, OXYGEN MASK, INLET
VALVE, CHECK, OXYGEN MASK, INLET
VALVE, CHECK, OXYGEN MASK, INLET
本标准规定了民用雾霾防护口罩(以下简称口罩)的术语和定义、型号规格、技术要求、试验方法、检验规则、标志、包装、运输和贮存。本标准适用于供身体健康状况正常的成年人使用的以防护空气中颗粒物为目的的民用口罩
MIL-V-21701B is inactive for new design and is no longer used, except for replacement purposes
VALVE, CHECK, OXYGEN MASK, INLET
MIL-V-217016 (2), dated 21 July 1977, has been reviewed and determined to be valid for use in acquisition
VALVE, CHECK, OXYGEN MASK, INLET
This amendment forms a part of Military Specification MIL-V-21701BY dated 26 March 1969, and Is mandatory for use by a I l Departments and Agencies
VALVE, CHECK, OXYGEN MASK, INLET
The following documents of the issue in effect on date of invitation for bids or request for proposal, form a part of the specification
VALVE, CHECK, OXYGEN MASK, INLET
Diese Europaische Norm bezieht sich auf Halbmasken und Viertelmasken für Atemschutzger?te au?er Fluchtgerate und Tauchgerate Sie legt
Respiratory protective devices - Half masks and quarter masks - Requirements, testing, marking
Visual and Dimensional .hspection (classification of defects as per Standard MIL-STD-105
MASK, GAS, ND MARK V INSPECTION STANDARD
Specifies minimum requirements for full face masks for respiratory protective devices. Diving apparatuses are not included
Respiratory protective devices - Full face masks - Requirements, testing, marking
This notice should be filed in front of MIL-M-51113D(EA), dated 22 September 1986, with Amendment 1,dated 27 October 1989
MASK, CHEMICAL-BIOLOGICAL, AIRCRAFT, ABC-M24
This amendment forms a part of MILM-S1113D(EA), dated 22 September 1986, and is approved for use by the US
MASK, CHEMICAL-BIOLOGICAL, AIRCRAFT, ABC-M24
This specification covers one type of chemical-biological mask
MASK, CHEMICAL-BIOLOGICAL, AIRCRAFT, ABC-M24
This specification covers one type of chemical---biological mask waterproof bag (see 6.1
BAG, WATERPROOF, CHEMICAL-BIOLOGICAL MASK, MI
This Commercial Item Description covers surgical masks used by personnel in operating rooms and by other personnel in maintaining protective aseptic
MASK, SURGICAL
The following National Stock Number and its respective Item Identification is covered by this document
MASK, ORONASAL, FACE TENT
本标准适用于医疗人员于手术、雷射、隔离、牙科或其它医疗程序时配戴之面罩,主要用途为防止病人与医护人员之间微生物、体液及粒状物质之传递与感染
Medical face mask
Gas respirators
This European Standard specifies minimum requirements for half masks and quarter masks for use as part of respiratory protective devices, except
Respiratory protective devices - Half masks and quarter masks - Requirements, testing, marking
4 基本要求 4.1 一般要求 5 技术要求 5.1 通用技术要求 5.2 外观要求 5.3 内在质量 6 试验方法 6.1 外观检验 6.2 耐摩擦色牢度 6.3 甲醛含量 6.4 pH 值 6.5 可分解致癌芳香胺染料 6.6
This commercial item description covers the requirements for a non-ballistic face shield to be used by dismounted military personnel
FACE SHIELD, NON-BALLISTIC
The General Services Administration has authorized the use of this Commercial Item Description
MASK, FACE, ASEPTIC
Specifies performance requirements for the materials, design and construction of helmets intended for use by persons involved in fighting structural
Firefighters' helmets
Covers the materials and make of five types of face masks
Surgical face masks
This specification covers an optical insert for use with protective masks (see 6.3
INSERT, OPTICAL, CHEMICAL BIOLOGICAL MASK, UNIVERSAL SIZE
This European Standard specifies minimumrequirements for fresh air hose breathing apparatusfor use with a full face mask, a half mask or amouthpiece
Respiratory protective devices - Fresh air hose breathing apparatus for use with full face mask, half mask or mouthpiece assembly - Requirements, testing, marking
Aerosol containers - Compartmented aerosol containers.
目前医用防护口罩的口罩带设计时普遍较紧、口罩的气流阻力相对较大,医护人员长时间佩戴易造成面部有勒痕、伤痕、呼吸不畅的情况,且口罩使用过程中,呼吸时如密闭不严,极易造成鼻部和面部漏气,使得实际过滤效率大打折扣,法实现有效防护。现有普通医用防护口罩仅能保护口鼻部位,如需实现头面部全方位防护,仍需佩戴
Protective face mask for medical use








