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Spray Impact

Spray Impact

The Spray Impact test measures a material’s resistance to water penetration under contact with sprayed water. It is performed on materials such as gowns and drapes. This test is necessary for 510(k) submissions to the FDA and to classify gowns and drapes for marketing with a level 1 – 4 per AAMI PB70 document. The test is performed in compliance with AATCC Test Method 42, the INDA IST Method 80.3 and AAMI PB70. In addition to this test, Nelson Laboratories can perform all AAMI PB70 testing.

Applicable Standards

  • INDA
  • AATCC 42
  • ISO
  • AAMI PB70
  • INDA
  • IEST 80.3

Test Options

Standard turn around times (TAT) are listed below. Ask an expert for a specific consultation on your product. If you are ready to submit your samples for testing, click here to fill out the Sample Submission Form.

Code Test TAT (days) Request Quote
SIT110 Spray Impact Test 10 Add
SIT110 - Spray Impact Test
TAT: 10 days

Sample Specifications

SIT110: 32 specimens recommended for FDA submission, Minimum of 5 specimens recommended. Each sample must be 7 x 13 inches (178 x 330 mm) minimum

Study Outline

The Spray Impact test measures water penetration using a 2-inch diameter spray head with 25 holes drilled with a #61 (0.0390 inches) bit. The center of the test specimen is positioned at a 45° angle, 0.6m below the spray head. A 500 ml aliquot of deionized water is allowed to pass through the spray head and directly onto the surface of the test specimen.

A pre-weighed blotter paper is placed under the test specimen. Water penetration is determined by comparing the initial blotter weight with the weight after exposure.

If testing to comply with AAMI PB70, please refer to sampling details as well as classification requirements.


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