AAFES TEST METHOD

A-8: Material Weight

Issue Date: 30 Apr 1993

Revision Date: 08/18/2004

1. PURPOSE AND SCOPE:

   To determine the weight of textile, plastic sheeting or film, and paper products.

2. PRINCIPLE:

   Specimens of known area are prepared, conditioned, and weighed.

3. REFERENCE:

   3.1 ASTM D 3776-96(2002), Standard Test Method for Mass Per Unit Area (Weight) of Fabric.

   3.2 ASTM D 685-96(2002), Standard Practice for Conditioning Paper and Paper Products for Testing.

4. APPARATUS:

   4.1 Precision scale that can weigh as low as 100th of a gram, such as Mettler, AE-200

   4.2 Cutting die, 81 x 77 mm (3.2 x 3.2 in.)

5. PROCEDURE:

   5.1 Using the cutting die, cut out three specimens from different areas of a sample unit.

   5.2 Condition the specimens for a minimum of 2 hours.

   Material	Temperature	Relative Humidity
   Textile	21° +/- 1C (70° +/- 2F)	65 +/- 2%
   Plastic Sheeting/Film	23° +/- 2C (73.4° +/- 3.6F)	50 +/- 5%
   Paper Products	23° +/- 2C (73.4° +/- 3.6F)	50 +/- 2%

    
   

   5.3 Weigh each specimen to the nearest 1/100 of a gram. To convert this weight into ozs./sq. yd., multiply it by 5. To convert this weight into grams/sq. meters, multiply it by 169.525.

6. REPORT:

   Report the average results of three specimens either in ozs./sq. yds. or grams/sq. meters.

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