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Significance and Use
The water retention of the insulation can result in an increase in weight and a resultant potential degradation in the properties of the insulation.
1.1 This test method covers a laboratory procedure for evaluating the water absorption potential of blanket insulation for aircraft, thereby providing a measure of potential weight increase due to water retention in an aircraft.
1.2 The water repellency (or retention) characteristics of materials may be affected by conditions such as contamination or temperature of the water. Values obtained as a result of this test method may not adequately describe the water repellency characteristics of materials subject to these conditions.
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
C168 Terminology Relating to Thermal Insulation
C390 Practice for Sampling and Acceptance of Thermal Insulation Lots
C800 Specification for Fibrous Glass Blanket Insulation (Aircraft Type)
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
ICS Number Code 49.025.40 (Rubber and plastics)
UNSPSC Code 30141508(Fiber insulation)