ASTM F1052-2014 Standard Test Method for Pressure Testing Vapor Protective Suits《压力试验蒸汽防护服的标准试验方法》.pdf

《ASTM F1052-2014 Standard Test Method for Pressure Testing Vapor Protective Suits《压力试验蒸汽防护服的标准试验方法》.pdf》由会员分享，可在线阅读，更多相关《ASTM F1052-2014 Standard Test Method for Pressure Testing Vapor Protective Suits《压力试验蒸汽防护服的标准试验方法》.pdf（5页珍藏版）》请在麦多课文档分享上搜索。

1、Designation: F1052 09F1052 14Standard Test Method forPressure Testing Vapor Protective Suits1This standard is issued under the fixed designation F1052; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A nu

2、mber in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.INTRODUCTIONPersonnel in industry and emergency response can be exposed to numerous chemicals capable ofcausing harm upon contact with the human body

3、. The deleterious effects of these chemicals can rangefrom acute trauma such as skin irritation and burn, to chronic degenerative disease such as cancer.Since engineering controls may not eliminate all possible exposures, attention is often placed onreducing the potential for direct skin contact thr

4、ough the use of protective clothing.Protective clothing is available in a variety of constructions, configurations and materials, and isdesigned to provide various levels of protection against many hazards.Vapor protective suits generallyoffer the highest level of chemical protection being construct

5、ed to prevent contact of solid, liquid, orgaseous chemicals with the wearer. This test method evaluates the integrity and construction of vaporprotective suits by way of an internal pressure test.Protective clothing is available in a variety of constructions, configurations and materials, and isdesi

6、gned to provide various levels of protection against many hazards.Vapor protective suits generallyoffer the highest level of chemical protection being constructed to prevent contact of solid, liquid, orgaseous chemicals with the wearer. This test method evaluates the integrity and construction of va

7、porprotective suits by way of an internal pressure test. This test method does not measure the protectionof the suit. Other tests measure the protective aspects of the ensembles that are based on these suits,including Test Method F2588 for evaluating chemical vapor inward leakage, Test Method F1359

8、forevaluating splash resistance using a shower test, and Practice F1154 for evaluating the overall form,fit, and function of a protective ensemble using a simulated wear test.Resistance to chemical permeation of materials used in protective clothing should be evaluated byTest Methods F739 for contin

9、uous contact and F1383 for intermittent contact (that is, splash), or byTest Method F1407 according to the permeation cup method. Resistance of protective clothingmaterials to liquid penetration should be determined by Test Method F903.Physical properties of materials used in the construction of pro

10、tective clothing can be determinedusing a variety of test methods, including Test Methods D751 (dimensions, weight, breaking strength,elongation, burst, tear resistance, hydrostatic resistance, coating adhesion, tack-tear, low temperatureimpact and bend, accelerated aging, blocking, and crush resist

11、ance), D2582 (puncture propagationtear), D4157 (abrasion resistance), F392 (flexural fatigue), F1358 (flammability), as well as manyothers.1. Scope1.1 This test method measures the ability of a vapor protective suits, including seams, and closures to maintain a fixed, positivepressure.1.2 This test

12、method does not measure vapor protection of suits. This test method measures the integrity of the suit, glove, footprotection, and visor materials, as well as the seams, and closures of a vapor protective suit. Exhaust valves fitted in the vaporprotective suit must be sealed or blocked for this test

13、 and therefore are not functionally tested.1.3 The values as stated in in.-H2O (mm-H2O) units are to be regarded as the standard.1 This test method is under the jurisdiction of ASTM Committee F23 on Personal Protective Clothing and Equipment and is the direct responsibility of SubcommitteeF23.30 on

14、Chemicals.Current edition approved Feb. 1, 2009May 1, 2014. Published February 2009May 2014. Originally approved in 1987. Last previous edition approved in 20022009 asF1052 97 (2002).F1052 09. DOI: 10.1520/F1052-09.10.1520/F1052-14.This document is not an ASTM standard and is intended only to provid

15、e the user of an ASTM standard an indication of what changes have been 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 st

16、andard as published by ASTM is to be considered the official document.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States11.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the

17、 responsibilityof the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatorylimitations prior to use. For specific hazard statements, see Section 7.2. Referenced Documents2.1 ASTM Standards:2D751 Test Methods for Coated FabricsD2582 T

18、est Method for Puncture-Propagation Tear Resistance of Plastic Film and Thin SheetingD4157 Test Method for Abrasion Resistance of Textile Fabrics (Oscillatory Cylinder Method)F392 Test Method for Flex Durability of Flexible Barrier MaterialsF739 Test Method for Permeation of Liquids and Gases throug

19、h Protective Clothing Materials under Conditions of ContinuousContactF903 Test Method for Resistance of Materials Used in Protective Clothing to Penetration by LiquidsF1154 Practices for Qualitatively Evaluating the Comfort, Fit, Function, and Durability of Protective Ensembles and EnsembleComponent

20、sF1358 Test Method for Effects of Flame Impingement on Materials Used in Protective Clothing Not Designated Primarily forFlame ResistanceF1359 Test Method for Liquid Penetration Resistance of Protective Clothing or Protective Ensembles Under a Shower SprayWhile on a MannequinF1383 Test Method for Pe

21、rmeation of Liquids and Gases through Protective Clothing Materials under Conditions of IntermittentContactF1407 Test Method for Resistance of Chemical Protective Clothing Materials to Liquid PermeationPermeation Cup MethodF2588 Test Method for Man-In-Simulant Test (MIST) for Protective Ensembles3.

22、Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 protective ensemble, nthe combination of protective clothing with respiratory protective equipment, hoods, helmets,gloves, boots, communications systems, cooling devices, and other accessories intended to protect the wearer from a p

23、otentialhazard when worn together.3.1.2 protective clothing, nitem of clothing that is specifically designed and constructed for the intended purpose of isolatingall or part of the body from a potential hazard; or, isolating the external environment from contamination by the wearer of theclothing.3.

24、1.3 protective suit, nan item of protective clothing that at a minimum covers the wearers torso, head, arms, and legs.3.1.3.1 DiscussionFor purposes of this test method, the protective suit is also equipped with a visor, and tightly attached glove and foot protectionand exhaust valves. These suits a

25、re designed to cover the wearers respiratory equipment and provide protection from vapors.4. Summary of Test Method4.1 The vapor protective suit is visually inspected and modified for the test. A test apparatus is attached to the vapor protectivesuit (Fig. 1) to permit inflation to the pre-test expa

26、nsion pressure for removal of wrinkles and creases, and to equalize/stabilize theair temperatures internal and external to the vapor protective suit. The pressure is lowered to the test pressure and monitored for4 min. If the pressure drop is excessive, the vapor protective suit fails the test and i

27、s removed from service. The test is repeatedafter leak location and repair.4.2 Pressure testing of vapor protective suits should be conducted at a frequency recommended by the manufacturer but no lessoften than upon receipt of the garment, after each wearing if the suit is to be reused, and at least

28、 annually thereafter.5. Significance and Use5.1 Workers involved in the production, use, and transportation of liquid and gaseous chemicals can be exposed to numerouscompounds capable of causing harm upon contact with the human body. The deleterious effects of these chemicals can range fromacute tra

29、uma such as skin irritation and burn to chronic degenerative disease such as cancer. Since engineering controls may noteliminate all possible exposures, attention is often placed on reducing the potential for direct skin contact through the use ofprotective clothing that resists permeation, penetrat

30、ion, and degradation.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.F1052 1425.2 This test method is only ap

31、propriate for evaluating the integrity of totally encapsulating protective suits, that are designedand manufactured to prevent the inward leakage of gases and vapors. The vapor protection should be tested in accordance withTest Method F2588. Garments designed to protect from liquid chemicals should

32、be tested in accordance with Test Method F1359.5.3 This non-destructive test method is useful as a quality control tool for manufactures and as a field method for end users todetermine changes in garment integrity following use.5.4 This test method is useful to end users for determining the integrit

33、y of vapor protective suits upon receipt from themanufacturer, prior to use, following use and decontamination, following repairs, and as a periodic maintenance test.6. Required Materials Apparatus6.1 Source of Compressed Air:6.2 Test Apparatus for Suit Testing(Fig. 2), including a pressure measurem

34、ent device with the capability of indicating 14-in.(6.35-mm) water gagegauge pressure change.6.3 Vent Valve Closure Plugs, or sealing tape.6.4 Soapy Water Solution and Soft Brush.6.5 Stop Watch, or appropriate timing device.6.6 Thermometer, or appropriate temperature measuring device.7. Hazards7.1 T

35、ake care to provide the correct pressure safety devices required for the source of compressed air used.7.2 Visually inspect all parts of the vapor protective suit to be sure that they are positioned correctly and secured tightly beforeputting the suit back into service. Take special care to examine

36、each exhaust valve to make sure it is not blocked and that anyre-assembly has been performed correctly.7.3 Exercise care to ensure that the inside and outside of the vapor protective suit are completely dry before it is put into storage.8. Procedure8.1 Select an area for pressure testing that is awa

37、y from direct sunlight, open doors, drafts, and HVAC registers. Temperaturevariations during testing should not exceed 65F of the nominal starting temperature. Testing should be repeated if temperaturevariations are outside of these limits.NOTE 1Temperature variations during testing should be avoide

38、d as they can result in both false positive and false negative test results in accordancewith this test method.FIG. 1 Typical Examples of Suit Modification to Permit InflationF1052 1438.2 Prior to each test, perform a visual inspection of the vapor protective suit. Check the suit for seam integrity

39、by visuallyexamining the seams and gently pulling on the seams. Ensure that all air supply lines, fittings, visor, zippers, and valves are secureand show no signs of deterioration.8.2.1 Seal off the vent valves along with any other normal inlet or exhaust points (such as umbilical air line fittings

40、or facepieceopening) with tape or other appropriate means (cap, plug, fixture, and so forth). Test all detachable components as part of this testmethod, if their removal is required to allow the test to be completed. Exercise care in the sealing process so that the vaporprotective suit components ar

41、e not damaged.8.2.2 Close all closure assemblies.8.2.3 Prepare the vapor protective suit for inflation utilizing one of the techniques illustrated in Fig. 1. Attach the pressure testapparatus to the suit to permit inflation from a compressed air source equipped with a pressure indication regulator (

42、Fig. 2). Checkthe leak tightness of the pressure test apparatus at pre-determined intervals by closing off the end of the tubing attached to the suitand ensuring 5-in. (127-mm) water gauge for 4 min can be maintained. Establish intervals for checking the test device at afrequency sufficient to assur

43、e reliable performance.8.2.4 Use the pre-test expansion pressure A, and the Test Pressure B, recommended by the suit manufacturer. However, do notuse pressures less than 5-in. (127-mm) water gagegauge for A, and 4-in. (101-mm) water gagegauge for B. Do not use an endingpressure, C, less than 80 % of

44、 the Test Pressure B; that is, do not allow a pressure drop that exceeds 20 % of the Test Pressure B.8.2.5 Inflate the suit until the pressure inside is equal to the Pressure A, the pre-test expansion pressure. Allow at least 1 minto fill out the wrinkles in the suit. Extend the settling time if air

45、 temperatures inside and outside the suit are not equal.equal (seeNote 2). During the settling time, it is normal for the pressure to change. As the temperature stabilizes, and suit extremities arefilled, the pressure will likely fall. It is permissible during the settling time to refill the suit, i

46、n order to maintain it at Pressure A.NOTE 2In practice, it has been found that a minimum of three minutes at Pressure A will produce more repeatable results. This allows more timefor internal pressure to stabilize, and for suit extremities (that is, gloves and booties) to fully inflate.8.2.6 Release

47、 sufficient air to reduce the pressure to the Test Pressure B. Begin timing. At the end of 4 min, record the endingpressure as C. Define the difference between the test pressure and the ending pressure, BC, as the pressure drop.8.2.7 If the pressure drop is more than 20 % of the Test Pressure B duri

48、ng the 4-min test period, the vapor protective suit failsthe test and shall be removed from service.9. Retest Procedure9.1 If the vapor protective suit fails the test, check for leaks by inflating the suit to pressure A and by brushing or wiping theentire suit (including seams, closures, lens gasket

49、s, glove-to-sleeve joints, and so forth) with a mild soap and water solution.3Observe the suit for the formation of soap bubbles, which are an indication of a leak. Repair all identified leaks in accordance withspecific manufacturer instructions if permitted.3 Any commercially available, high-sudsing soap solution such as childrens bubbles, has been found to offer satisfactory performance for this purpose.FIG. 2 Recommended Pressure Test Apparatus and Typical Test ConfigurationF1052 1449.2 Retest the suit as outlined in Section 8.10. Report10.1 Report the follo