1、Designation: F2704 17F2704 17aStandard Specification forAir-Fed Protective Ensembles1This standard is issued under the fixed designation F2704; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number in
2、parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification establishes design, performance, classification, documentation, labeling, and certification requirements forprotective ensembl
3、es that deliver air to the wearer by means of an air line or powered air purifying respirator (PAPR).1.2 As a prerequisite to this specification, regulations within Title 42 Federal Code of Regulations, Part 84 are used to establishthe conformance of the air-fed protective ensemble to respiratory pr
4、otection requirements.1.3 This specification addresses protective ensembles used for environments involving chemical, biological, and radiological/nuclear particulate hazards.1.4 This specification sets specific criteria for air-fed protective ensembles used to prevent exposure to substances such as
5、, butnot limited to, chemical hazards, infectious microorganisms requiring Biosafety Level 4 (BLS4) protection, and environmentswhere it is possible radiological or nuclear particulates will be found.1.5 This specification is further used for classification of the protective ensemble as limited use
6、or multiple use.1.6 The values stated in SI units or in other units shall be regarded separately as standard. The values stated in each system mustbe used independently of the other, without combining values in any way.1.7 This standard does not purport to address all of the safety concerns, if any,
7、 associated with its use. It is the responsibilityof the user of this standard to establish appropriate safety safety, health, and healthenvironmental practices and determine theapplicability of regulatory limitations prior to use.1.8 This international standard was developed in accordance with inte
8、rnationally recognized principles on standardizationestablished in the Decision on Principles for the Development of International Standards, Guides and Recommendations issuedby the World Trade Organization Technical Barriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2D751 T
9、est Methods for Coated FabricsD1776 Practice for Conditioning and Testing TextilesD2582 Test Method for Puncture-Propagation Tear Resistance of Plastic Film and Thin SheetingD3787 Test Method for Bursting Strength of TextilesConstant-Rate-of-Traverse (CRT) Ball Burst TestD3884 Guide for Abrasion Res
10、istance of Textile Fabrics (Rotary Platform, Double-Head Method)D4157 Test Method for Abrasion Resistance of Textile Fabrics (Oscillatory Cylinder Method)D5034 Test Method for Breaking Strength and Elongation of Textile Fabrics (Grab Test)D5151 Test Method for Detection of Holes in Medical GlovesD55
11、87 Test Method for Tearing Strength of Fabrics by Trapezoid ProcedureF392 Test Method for Flex Durability of Flexible Barrier MaterialsF739 Test Method for Permeation of Liquids and Gases through Protective Clothing Materials under Conditions of ContinuousContactF903 Test Method for Resistance of Ma
12、terials Used in Protective Clothing to Penetration by LiquidsF1052 Test Method for Pressure Testing Vapor Protective Suits1 This specification is under the jurisdiction of ASTM Committee F23 on Personal Protective Clothing and Equipment and is the direct responsibility of SubcommitteeF23.30 on Chemi
13、cals.Current edition approved July 1, 2017Nov. 1, 2017. Published July 2017November 2017. Originally approved in 2010. Last previous edition approved in 20102017 asF2704 10.F2704 17. DOI:10.1520/F2704-17.DOI:10.1520/F2704-17A.2 For referencedASTM standards, visit theASTM website, www.astm.org, or co
14、ntactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have b
15、een made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official docume
16、nt.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1F1154 Practices for Qualitatively Evaluating the Comfort, Fit, Function, and Durability of Protective Ensembles and EnsembleComponentsF1342 Test Method for Protective Clothing Materia
17、l Resistance to PunctureF1359 Test Method for Liquid Penetration Resistance of Protective Clothing or Protective Ensembles Under a Shower SprayWhile on a MannequinF1494 Terminology Relating to Protective ClothingF1671 Test Method for Resistance of Materials Used in Protective Clothing to Penetration
18、 by Blood-Borne Pathogens UsingPhi-X174 Bacteriophage Penetration as a Test SystemF1790 Test Method for Measuring Cut Resistance of Materials Used in Protective Clothing with CPP Test EquipmentF2010 Test Method for Evaluation of Glove Effects on Wearer Hand Dexterity Using a Modified Pegboard TestF2
19、061 Practice for Chemical Protective Clothing: Wearing, Care, and Maintenance InstructionsF2413 Specification for Performance Requirements for Protective (Safety) Toe Cap FootwearF2913 Test Method for Measuring the Coefficient of Friction for Evaluation of Slip Performance of Footwear and TestSurfac
20、es/Flooring Using a Whole Shoe TesterF3050 Guide for Conformity Assessment of Personal Protective Clothing and Equipment2.2 Federal Standards:342 CFR Part 84 Approval of Respiratory Protective Devices2.3 ISO Standards:4ISO 4649:2010 Rubber, Vulcanized or Thermoplastic Determination of Abrasion Resis
21、tance Using a Rotating CylindricalDrum Device2.4 NFPA Standard:Standards:5NFPA 1991:20121991:2016 Standard on Vapor-Protective Ensembles for Hazardous Materials Emergencies and CBRNTerrorism IncidentsNFPA 1994:2018 Standard on Protective Ensembles for First Responders to Hazardous Materials Emergenc
22、ies and CBRNTerrorism Incidents3. Terminology3.1 Definitions:3.1.1 airborne pathogen, nan infectious bacterium or virus, or other disease-inducing microbe that is suspended in air.3.1.2 air-fed protective ensemble, na protective ensemble with respiratory protective equipment that provides a source o
23、f airdirectly into the ensemble without the use of a tight-fitting facepiece worn by the individual inside the ensemble.3.1.2.1 DiscussionThe respiratory protective equipment is either an airline air line that is connected to the suit wall of the ensemble that can includea distribution means inside
24、the ensemble, or a powered air-purifying respirator that is connected to the suit wall and that can alsohave a means for distributing air inside the ensemble.3.1.3 approved, vacceptable to the authority having jurisdiction.3.1.4 authority having jurisdiction, nan organization, office, or individual
25、responsible for enforcing the requirements of a codeor standard, or for approving equipment, materials, an installation, or a procedure.3.1.5 barrier material, nthe layer of a protective clothing item that is designated as providing permeation or penetrationresistance against chemicals or other haza
26、rdous substances.3.1.5.1 DiscussionIn this specification, the barrier material refers to the layer of the protective ensemble element that is designed to act as a barrierto a hazardous substance that the ensemble is intended to protect against.3.1.6 blood-borne pathogen, nan infectious bacterium or
27、virus, or other disease-inducing microbe carried in the blood or otherpotentially infectious body fluids (also liquid-borne pathogen).3.1.7 labeled, nequipment or materials to which has been attached a label, symbol, or other identifying mark of anorganization that is acceptable to the authority hav
28、ing jurisdiction and concerned with product evaluation, that maintains periodic3 Available from U.S. Government Printing Office Superintendent of Documents, 732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401, http:/www.access.gpo.gov.4 Available from American National Standards Institute (
29、ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http:/www.ansi.org.5 Available from National Fire Protection Association (NFPA), 1 Batterymarch Park, Quincy, MA 02169-7471, http:/www.nfpa.org.F2704 17a2inspection of production of labeled equipment or materials, and by whose labeling the manufa
30、cturer indicates compliance withappropriate standards or performance in a specified manner.3.1.8 listed, nequipment, materials, or services included in a list published by an organization that is acceptable to theauthority having jurisdiction and concerned with evaluation of products or services, th
31、at maintains periodic inspection ofproduction of listed equipment or materials or periodic evaluation of services, and whose listing states that either the equipment,material, or service meets appropriate designated standards or has been tested and found suitable for a specified purpose.3.1.9 manufa
32、cturer, nthe entity that directs and controls any of the following: compliant product design, compliant productmanufacturing, or compliant product quality assurance; or the entity that assumes the liability for the compliant product or providesthe warranty for the compliant product.3.1.10 protective
33、 ensemble, nthe combination of protective clothing with respiratory protective equipment, hoods, helmets,gloves, boots, communication systems, cooling devices, and other accessories intended to protect the wearer from a potentialhazard when worn together.3.1.11 sock, nan extension of the garment or
34、suit leg that covers the entire foot and is intended to be worn with a protectiveouter boot.3.1.12 tethered applications, napplications in which a hose or line is attached to the garment or hood portion of the ensemblevia an external fitting mounted on the garment material that is further connected
35、to a fixed location external to the suit.3.2 For definitions of other protective clothing-related terms used in this test method, refer to Terminology F1494.4. Significance and Use4.1 As with other hazardous materials protective ensembles, air-fed protective ensembles include clothing and equipment
36、itemsneeded for dermal and respiratory protection, including protective suits, gloves, footwear, and eye/face protection. Unlike otherprotective ensembles, air-fed protective ensembles do not use separate respiratory protective devices such as self-containedbreathing apparatus (SCBA) or non-powered
37、air-purifying respirators (APRs).4.1.1 Those types of respirators normally have a tight-fitting face piece that provides inhalation hazard protection and dermalexposure protection to the face, eyes, nose, and mouth.4.1.2 Air-fed protective ensembles are worn without the use of a separate respirator.
38、 The entire suit serves as the respiratoryprotective device and also provides dermal exposure protection. The wearer breathes supplied air or filtered air pumped into theprotective suit.4.2 Air-fed protective ensembles are used to protect workers in a number of applications.4.2.1 These include, but
39、are not limited to: chemical and pharmaceutical manufacturing, remediation of hazardous materialssites, use against highly infectious biological agents in BioSafetyBiosafety Level 4 laboratories, and for protection of workersinvolved in nuclear and radiological facilities, where it is possible radio
40、active particles will be encountered.4.3 The requirements of this specification have been partly based on the NFPA1991 standard, which establishesand NFPA1994standards, which establish criteria for vapor-protective ensembles used in hazardous materials emergencies. NFPA1991 establishesrequirements f
41、or a protective ensemble that encapsulates the wearer and the breathing apparatus. NFPA 1994 establishesrequirements for a protective ensemble under Class 1 requirements that in some configurations encapsulates the wearer and thebreathing apparatus.4.3.1 In this specification, a breathing apparatus
42、is not worn inside the suit, but instead breathing air is connected to the suiteither via an external airline air line or respiratory protective equipment that is externally connected to the suit wall. Extensivecriteria for the integrity of the overall ensemble are applied through design and perform
43、ance requirements. This allows for differentconfigurations of a protective ensemble that incorporates a hooded visor, protective gloves, protective footwear, and the respiratoryprotective equipment.4.4 The qualification of the respiratory protective equipment is addressed by the applicable requireme
44、nts for respiratorsestablished in 42 CFR Part 84. As such, the entire air-fed ensemble is subject to certification by NIOSH in addition to meeting therequirements in this specification.4.5 This specification establishes classifications for the protective ensemble. The classifications include one tha
45、t is determinedby the configuration of the protective ensemble and one that concerns the use of the protective ensemble.4.5.1 A protective ensemble can be classified as an “Airline Protective Ensemble” or a “PAPR-Based Air-Fed ProtectiveEnsemble.”“air line protective ensemble” or a “PAPR-based air-f
46、ed protective ensemble.” Under each of these classifications,protective ensembles can be further classified as “Limited Use” and “Multiple Use.”“limited use” and “multiple use.”4.5.2 These classifications account for differences in the configuration of the air supply and material strength and durabi
47、lity.These classifications do not account for the decontamination effectiveness of multiple-use ensembles.4.6 In recognition of the potential diverse applications to which the protective ensemble can be used, documentationrequirements are provided for manufacturers to base claims for permeation resi
48、stance of ensemble materials against specificF2704 17a3chemicals or for claims of ensemble material performance against bloodborneblood-borne (or liquidborne)liquid-borne) pathogens.Similar requirements are established for the respiratory protective equipment, when this equipment is based on the use
49、 of filters,cartridges, or canisters.4.7 An extensive section is provided in the specification addressing the certification of air-fed protective ensembles. Thiscertification section is based on provisions established in NFPA 1991 The requirements in the certification section are based onthe recommendations provided for conformity assessment example category B inAnnexA2 of Guide F3050and other National FireProtection Association product standards for emergency services protective clothing and equipment This category specifies thatthe supplier provides a dec
