Why does my spray rack have to be calibrated according to the ASTM E331 if I’m performing a spray test according to the ASTM E1105 or the AAMA 502 specifications?

The ASTM E1105 standard uses the same rules for spray apparatus calibration as the E331 does. The ASTM E547 does as well. The AAMA 502-08 and 511-08 refer to the ASTM E331 for this calibration too.

How often does my spray rack have to be calibrated?

Every 6 months:
ASTM E 1105-00 “Standard Test Method for Field Determination of Water Penetration of Installed Exterior Windows, Skylights, Doors, and Curtain Walls, by Uniform or Cyclic Static Air Pressure Difference” page #4 paragraph 9.1.1 “Recalibrate at intervals necessary in the judgment of the testing agency but not more than six months.”

ASTM E 331-00 “Standard Test Method for Water Penetration of Exterior Windows, Skylights, Doors, and Curtain Walls by Uniform Static Air Pressure Difference” page #3 paragraph 9.1.1 “Recalibrate at intervals of not more than six months.”

ASTM E 547-00 “Standard Test Method for Water Penetration of Exterior Windows, Skylights, Doors, and Curtain Walls by Uniform Cyclic Air Pressure Difference” page #3 paragraph 9.1.1 “Recalibrate at intervals of not more than 6 months.”

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Tags: AAMA 502-08, AAMA 511-08, ASTM E1105, ASTM E331, ASTM E547, calibration, spray rack

This entry was posted on Tuesday, December 23rd, 2008 at 2:39 pm and is filed under Calibration. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.