A-A-52122 Kit, Water Purification, EmergencyThis commercial item description CID covers one type of emergency water purification kit recommended for use in situations where municipal treated water is not provided or where the available water is suspected of being polluted.

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A-A-52122C

TABLE I. Physical requirements

Characteristic

Test method

Test results

Weave

Visual

Oxford

Air Permeability

Per single layer (ft3/min./ft2)

ASTM D737

56-80

Weight (bleached), oz/sq yd

ASTM D37762

5.2 (min.)

Yarns/inch Warp Filling

ASTM D37753

81 (min.)

27 (min.)

Tearing strength, (lb) Warp

Filling

ASTM D14244

11 (min.)

8 (min.)

Breaking strength, (lb) Warp

Filling

ASTM D50345

136 (min.)

92 (min.)

1ASTM D737, "Standard Test Method for Air Permeability of Textile Fabrics".

2ASTM D3776, "Standard Test Method for Mass Per Unit Area (Weight) of

Fabric".

3ASTM D3775, "Standard Test Method for Warp (End) and Filling (Pick) Count of Woven Fabric".

4ASTM D1424, "Standard Test Method for Tearing Strength of Fabrics by

Falling-Pendulum Type (Elmendorf-Type) Apparatus".

5ASTM D5034, "Standard Test Method for Breaking Strength and Elongation of

Textile Fabrics (Grab Test)".

2.1.3 Water treatment bag. The water treatment bag shall be constructed of 4 mil (0.004 inches) polyethylene material. The measurements of the treatment bag shall be 11-3/4 inches in length and 7-1/2 inches in width. All side seams shall be heat sealed with 1/8 inch seam width. The

bag shall include tapes over wires to protect the bag against piercing and two center tabs to aid in opening and closing.

2.1.4 Emergency water purification procedure label. The procedure label shall conform to figure 1 and shall be embossed (printed) on the outside of the water treatment bag.