A-A-52471 Extinguisher, Fire, Co2 2-1/2-Pound, With BracketThis CID covers requirements for a refillable, hand held fire extinguisher containing 2.5 pounds of Carbon Dioxide (C02) with mounting bracket. The hand-held fire extinguisher is intended to extinguish incipient petroleum and electrical fires.

Pages 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9

A-A-52471D

TABLE I. Shock requirements.

NOTE: g’s = gravities

ms = milliseconds

i. Refill. The fire extinguisher shall be capable of being refilled without leakage of C02 . This shall be verified upon the tenth refill by testing in accordance with the procedure and criteria outlined in section 43.1 of ANSI/UL 154. In addition, the fire extinguisher shall not leak during refill.

j. Safety relief device. The fire extinguisher shall be equipped with a visual device to notify the user that the burst disk has ruptured. This device shall be securely fastened to the extinguisher and shall not be susceptible to accidental activation. In addition, it shall be of a bright color so as to distinguish itself among the other extinguisher components.

k. Vibration. The fire extinguisher and bracket shall withstand vibration testing without degradation in function per ATPD-2167 (ANSI/UL 154 shall not be used for vibration requirements).

1. Rating. The fire extinguisher shall have the fire extinguishing potential of at least a 2B fire and a class C designation per ANSI/UL 711.

m. Material safety data sheets (MSDS). An MSDS shall be prepared in accordance with FED-STD-313 (see Notes b and e).

n. Instructions and name labels. One mylar label shall be fixed to the cylinder covering the entire circumference and inscribed as per the following description. The letter size specified is in units of inches with a tolerance of + 0.10 inch. The inscription system is to be annotated: Black on Natural Color Metal (BNCM) and Natural Metal Color on Black (NMCB).