ASTM F1052-2009 Standard Test Method for Pressure Testing Vapor Protective Ensembles《气密的全密封化工防护套服加压的标准试验方法》.pdf

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1、Designation: F 1052 09Standard Test Method forPressure Testing Vapor Protective Suits1This standard is issued under the fixed designation F 1052; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number i

2、n 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. The

3、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 through t

4、he 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 constructed to

5、 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. This test method does not measure the protectionof the suit. Other tests measure the protective aspects of t

6、he ensembles that are based on these suits,including Test Method F 2588 for evaluating chemical vapor inward leakage, Test Method F 1359 forevaluating splash resistance using a shower test, and Practice F 1154 for evaluating the overall form,fit, and function of a protective ensemble using a simulat

7、ed wear test.Resistance to chemical permeation of materials used in protective clothing should be evaluated byTest Methods F 739 for continuous contact and F 1383 for intermittent contact (that is, splash), or byTest Method F 1407 according to the permeation cup method. Resistance of protective clot

8、hingmaterials to liquid penetration should be determined by Test Method F 903.Physical properties of materials used in the construction of protective clothing can be determinedusing a variety of test methods, including Test Methods D 751 (dimensions, weight, breaking strength,elongation, burst, tear

9、 resistance, hydrostatic resistance, coating adhesion, tack-tear, low temperatureimpact and bend, accelerated aging, blocking, and crush resistance), D 2582 (puncture propagationtear), D 4157 (abrasion resistance), F 392 (flexural fatigue), F 1358 (flammability), as well as manyothers.1. Scope1.1 Th

10、is test method measures the ability of a vaporprotective suits, including seams, and closures to maintain afixed, positive pressure.1.2 This test method does not measure vapor protection ofsuits. This test method measures the integrity of the suit, glove,foot protection, and visor materials, as well

11、 as the seams, andclosures of a vapor protective suit. Exhaust valves fitted in thevapor protective suit must be sealed or blocked for this test andtherefore are not functionally tested.1.3 The values as stated in in.-H2O (mm-H2O) units are tobe regarded as the standard.1.4 This standard does not pu

12、rport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use. For specific hazardstatements, see Section

13、7.2. Referenced Documents2.1 ASTM Standards:2D 751 Test Methods for Coated FabricsD 2582 Test Method for Puncture-Propagation Tear Resis-tance of Plastic Film and Thin SheetingD 4157 Test Method for Abrasion Resistance of Textile1This test method is under the jurisdiction ofASTM Committee F23 on Per

14、sonalProtective Clothing and Equipment and is the direct responsibility of SubcommitteeF23.30 on Chemicals.Current edition approved Feb. 1, 2009. Published February 2009. Originallyapproved in 1987. Last previous edition approved in 2002 as F 1052 97 (2002).2For referenced ASTM standards, visit the

15、ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, Un

16、ited States.Fabrics (Oscillatory Cylinder Method)F 392 Test Method for Flex Durability of Flexible BarrierMaterialsF 739 Test Method for Permeation of Liquids and Gasesthrough Protective Clothing Materials under Conditions ofContinuous ContactF 903 Test Method for Resistance of Materials Used inProt

17、ective Clothing to Penetration by LiquidsF 1154 Practices for Qualitatively Evaluating the Comfort,Fit, Function, and Integrity of Chemical-Protective SuitEnsemblesF 1358 Test Method for Effects of Flame Impingement onMaterials Used in Protective Clothing Not DesignatedPrimarily for Flame Resistance

18、F 1359 Test Method for Liquid Penetration Resistance ofProtective Clothing or Protective Ensembles Under aShower Spray While on a MannequinF 1383 Test Method for Permeation of Liquids and Gasesthrough Protective Clothing Materials under Conditions ofIntermittent ContactF 1407 Test Method for Resista

19、nce of Chemical ProtectiveClothing Materials to Liquid PermeationPermeation CupMethodF 2588 Test Method for Man-In-Simulant Test (MIST) forProtective Ensembles3. Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 protective ensemble, nthe combination of protectiveclothing with respi

20、ratory protective equipment, hoods, helmets,gloves, boots, communications systems, cooling devices, andother accessories intended to protect the wearer from apotential hazard when worn together.3.1.2 protective clothing, nitem of clothing that is specifi-cally designed and constructed for the intend

21、ed purpose ofisolating all or part of the body from a potential hazard; or,isolating the external environment from contamination by thewearer of the clothing.3.1.3 protective suit, nan item of protective clothing thatat a minimum covers the wearers torso, head, arms, and legs.3.1.3.1 DiscussionFor p

22、urposes of this test method, theprotective suit is also equipped with a visor, and tightlyattached glove and foot protection and exhaust valves. Thesesuits are designed to cover the wearers respiratory equipmentand provide protection from vapors.4. Summary of Test Method4.1 The vapor protective suit

23、 is visually inspected andmodified for the test. A test apparatus is attached to the vaporprotective suit (Fig. 1) to permit inflation to the pre-testexpansion pressure for removal of wrinkles and creases, and toequalize/stabilize the air temperatures internal and external tothe vapor protective sui

24、t. The pressure is lowered to the testpressure and monitored for 4 min. If the pressure drop isexcessive, the vapor protective suit fails the test and is removedfrom service. The test is repeated after leak location and repair.4.2 Pressure testing of vapor protective suits should beconducted at a fr

25、equency recommended by the manufacturerbut no less often than upon receipt of the garment, after eachwearing if the suit is to be reused, and at least annuallythereafter.5. Significance and Use5.1 Workers involved in the production, use, and transpor-tation of liquid and gaseous chemicals can be exp

26、osed tonumerous compounds capable of causing harm upon contactFIG. 1 Typical Examples of Suit Modification to Permit InflationF1052092with the human body. The deleterious effects of these chemi-cals can range from acute trauma such as skin irritation andburn to chronic degenerative disease such as c

27、ancer. Sinceengineering controls may not eliminate all possible exposures,attention is often placed on reducing the potential for directskin contact through the use of protective clothing that resistspermeation, penetration, and degradation.5.2 This test method is only appropriate for evaluating the

28、integrity of totally encapsulating protective suits, that aredesigned and manufactured to prevent the inward leakage ofgases and vapors. The vapor protection should be tested inaccordance with Test Method F 2588. Garments designed toprotect from liquid chemicals should be tested in accordancewith Te

29、st Method F 1359.5.3 This non-destructive test method is useful as a qualitycontrol tool for manufactures and as a field method for endusers to determine changes in garment integrity following use.5.4 This test method is useful to end users for determiningthe integrity of vapor protective suits upon

30、 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 apressure measurement device with the capability of

31、indicating14-in. (6.35-mm) water gage 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 measuringdevice.7. Hazards7.1 Take care to provide the correct pressure

32、 safety devicesrequired for the source of compressed air used.7.2 Visually inspect all parts of the vapor protective suit tobe sure that they are positioned correctly and secured tightlybefore putting the suit back into service. Take special care toexamine each exhaust valve to make sure it is not b

33、locked andthat any re-assembly has been performed correctly.7.3 Exercise care to ensure that the inside and outside of thevapor protective suit are completely dry before it is put intostorage.8. Procedure8.1 Select an area for pressure testing that is away fromdirect sunlight, open doors, drafts, an

34、d HVAC registers. Tem-perature variations during testing should not exceed 65F ofthe nominal starting temperature. Testing should be repeated iftemperature variations are outside of these limits.NOTE 1Temperature variations during testing should be avoided asthey can result in both false positive an

35、d false negative test results inaccordance with this test method.8.2 Prior to each test, perform a visual inspection of thevapor protective suit. Check the suit for seam integrity byvisually examining the seams and gently pulling on the seams.Ensure that all air supply lines, fittings, visor, zipper

36、s, andvalves are secure and show no signs of deterioration.8.2.1 Seal off the vent valves along with any other normalinlet or exhaust points (such as umbilical air line fittings orfacepiece opening) with tape or other appropriate means (cap,plug, fixture, and so forth). Test all detachable component

37、s aspart of this test method, if their removal is required to allow thetest to be completed. Exercise care in the sealing process sothat the vapor protective suit components are not damaged.8.2.2 Close all closure assemblies.8.2.3 Prepare the vapor protective suit for inflation utilizingone of the t

38、echniques illustrated in Fig. 1. Attach the pressuretest apparatus to the suit to permit inflation from a compressedair source equipped with a pressure indication regulator (Fig.FIG. 2 Recommended Pressure Test Apparatus and Typical Test ConfigurationF10520932). Check the leak tightness of the press

39、ure test apparatus atpre-determined intervals by closing off the end of the tubingattached to the suit and ensuring 5-in. (127-mm) water gaugefor 4 min can be maintained. Establish intervals for checkingthe test device at a frequency sufficient to assure reliableperformance.8.2.4 Use the pre-test ex

40、pansion pressure A, and the TestPressure B, recommended by the suit manufacturer. However,do not use pressures less than 5-in. (127-mm) water gage forA,and 4-in. (101-mm) water gage for B. Do not use an endingpressure, C, less than 80 % of the Test Pressure B; that is, donot allow a pressure drop th

41、at exceeds 20 % of the TestPressure B.8.2.5 Inflate the suit until the pressure inside is equal to thePressure A, the pre-test expansion pressure. Allow at least 1min to fill out the wrinkles in the suit. Extend the settling timeif air temperatures inside and outside the suit are not equal.8.2.6 Rel

42、ease sufficient air to reduce the pressure to the TestPressure B. Begin timing. At the end of 4 min, record theending pressure as C. Define the difference between the testpressure and the ending pressure, BC, as the pressure drop.8.2.7 If the pressure drop is more than 20 % of the TestPressure B dur

43、ing the 4-min test period, the vapor protectivesuit fails the test and shall be removed from service.9. Retest Procedure9.1 If the vapor protective suit fails the test, check for leaksby inflating the suit to pressureAand by brushing or wiping theentire suit (including seams, closures, lens gaskets,

44、 glove-to-sleeve joints, and so forth) with a mild soap and watersolution.3Observe the suit for the formation of soap bubbles,which are an indication of a leak. Repair all identified leaks inaccordance with specific manufacturer instructions if permit-ted.9.2 Retest the suit as outlined in Section 8

45、.10. Report10.1 Report the following information:10.1.1 Vapor protective suit was tested as directed in TestMethod F 1052.10.1.2 Unique identification number identifying brandname, date of purchase, material of construction, and uniquefeatures, for example, special breathing apparatus.10.1.3 Record

46、the actual values for the test pressures A, B,and C, along with the specific observation times. If the endingpressure, C, is less than 80 % of the test pressure, B, identifythe suit as failing the test. When possible, identify the specificleak locations in the test records. Record the retest pressur

47、edata as an additional test.10.1.4 Manufacturer/model number of the test apparatusused, identified along with the performance capabilities of thepressure gage.10.2 Keep records for each pressure test even if repairs arebeing made at the test location.11. Precision and Bias11.1 PrecisionIt is not fea

48、sible to specify the precision ofthe procedure at this time because a suitable specimen cannotbe identified for round-robin testing.11.2 BiasNo information can be presented on the bias ofthe procedure in Test Method F 1052 for determining theintegrity of vapor protective ensembles because no vaporpr

49、otective suit can be identified that offers an acceptablereference value.12. Keywords12.1 integrity; pressure testing; protective clothingASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be re