NAVY A-A-59771-2005 SELF-CONTAINED BREATHING APPARATUS (SCBA)《独立式呼吸器》.pdf
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1、 INCH POUND A-A-59771 22 February 2005 COMMERCIAL ITEM DESCRIPTION SELF-CONTAINED BREATHING APPARATUS (SCBA) The General Services Administration has authorized the use of this commercial item description, for all federal agencies. 1. SCOPE. This commercial item description covers a National Fire Pro
2、tection Association (NFPA) 1981 compliant Self-Contained Breathing Apparatus (SCBA) to be used to provide breathing air for fire fighting and damage control activities aboard Navy ships where atmospheres are classified as being Immediately Dangerous to Life or Health (IDLH). 2. SALIENT CHARACTERISTI
3、CS. 2.1 Physical characteristics. The basic components of the SCBA shall include a compressed air cylinder secured to the users back with a back frame and harness, a first stage regulator, a facepiece, and a mask-mounted, second stage regulator. The SCBA shall conform to the following characteristic
4、s in addition to those specified in NFPA 1981. 2.1.1 Air cylinder. The SCBA air cylinder shall be fully wound carbon fiber wrapped composite construction and certified under current requirements established by the Department of Transportation (DOT). 2.1.1.1 Pressure indicator. The cylinder valve sha
5、ll include a pressure indicator, which shall provide a continuous reading of cylinder pressure. 2.1.1.2 Cylinder valve connection. The cylinder valve shall utilize a Compressed Gas Association (CGA) 347 connection. 2.1.1.3 Cylinder supplied. The SCBA shall be delivered with a 30-minute or a 45-minut
6、e cylinder as specified (see 6.2), as rated by NIOSH in accordance with 42 CFR 84, installed in the SCBA back frame. 2.1.1.4 Charge air. All cylinders shall be delivered fully charged with Type 1, Grade D quality air in accordance with ANSI/CGA G-7.1 and with a moisture content of 65 F dew point. 2.
7、1.2 Back frame and harness. 2.1.2.1 Cylinder size adjustment. The back frame shall be able to accommodate either a 30-minute or a 45-minute cylinder as rated by NIOSH in accordance with 42 CFR 84. Adjustments to the back frame to switch between cylinder sizes shall be made without tools and require
8、less than ten seconds. 2.1.2.2 Air cylinder replacement. It shall be possible to remove and reinstall an air cylinder in less than 60 seconds while the SCBA is being worn by another user without the use of tools. 2.1.2.3 Harness adjustment range. The backpack harness waist and shoulder straps or bel
9、ts shall fit a range of user sizes (body dimensions) from the 5thpercentile female to the 95thpercentile male as defined by ASTM F1166. 2.1.3 Voice projection unit (VPU). The VPU shall be facepiece mounted and shall attach to and be completely supported by the SCBA facepiece. 2.1.3.1 Operating contr
10、ols. The operating controls shall be limited to a single, watertight, on/off switch for activation. Beneficial comments, recommendations, additions, deletions, clarifications, etc. and any data that may improve this document should be sent to: Commander, Naval Sea Systems Command, ATTN: SEA 05Q, 133
11、3 Isaac Hull Avenue, SE, Stop 5160, Washington Navy Yard DC 20376-5160 or emailed to commandstandardsnavsea.navy.mil, with the subject line “Document Comment”. Since contact information can change, you may want to verify the currency of this address information using the ASSIST Online database at ht
12、tp:/assist.daps.dla.mil. FSC 4240 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-59771 2.1.3.2 On/off indication. The VPU shall have a light emitting diode (LED) on the exterior of the VPU, which illuminates whenever power is on, but is not in t
13、he wearers field of vision where it becomes a distraction to the user in low-light conditions. 2.1.3.3 Replaceability. It shall be possible for the user to remove a VPU from the facepiece and attach an identical replacement unit to the facepiece in less than 30 seconds, while wearing gloves and with
14、out the use of tools. 2.1.3.4 Maintenance. The VPU shall not require periodic maintenance, other than cleaning and replacement of batteries. 2.1.4 Power supply. 2.1.4.1 Batteries. The VPU and Heads-Up Display (HUD) shall be powered by alkaline batteries and shall use no more than the indicated numbe
15、r of one of the following battery types for each VPU or HUD: NEDA 14A (C cell): 1 battery per set NEDA 15A (AA cell): 2 batteries per set NEDA 1604A (9 volt): 1 battery per set 2.1.4.2 Batteries supplied. Upon delivery, batteries for the HUD and VPU shall be supplied with the SCBA in a separate, sea
16、led package. 2.1.5 Size limitation. 2.1.5.1 Stowage size. The SCBA with a 30-minute or a 45-minute cylinder installed shall fit into a stowage area not to exceed 12 inches wide by 25 inches high by 11 inches deep. 2.1.5.2 Maximum depth. The SCBA with a 30-minute cylinder shall not have a depth great
17、er than 8.5 inches, including cylinder retention band. 2.1.6 Facepiece. The facepiece shall be clearly marked to identify facepiece size if available in more than one size. 2.1.6.1 Lens replacement. The facepiece lens shall be replaceable without the use of special tools and the time to replace the
18、lens shall not exceed 8 minutes. The lens shall be interchangeable with all facepiece sizes, if applicable. 2.1.6.2 Nosecup. The facepiece shall be equipped with a nosecup and shall have size clearly marked, if applicable. The nosecup shall be removable without the use of special tools and interchan
19、geable with all size facepieces. 2.1.6.3 Corrective spectacles. The SCBA shall have a NIOSH approved spectacle kit available as an accessory. 2.1.7 Cleaning and disinfecting. 2.1.7.1 Facepiece. The facepiece shall be fully immersible in a dilute sanitizing solution, defined as 2 tablespoons of Wesco
20、dyne G or sodium hypochlorite per 1 gallons of water, for the purpose of cleaning and disinfecting. Preparation time, i.e., removal of non-immersible parts such as the VPU, for full immersion shall be less than 30 seconds. 2.1.7.2 Second stage regulator. If any part of the second stage regulator is
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