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Separable Fittings, Permanent Fittings, Tubing, Fluid Systems 8000 psi Qualification Test Standard For

2013-01-07
CURRENT
AS4401
This Performance Standard covers the Qualification Test Requirements for separable fittings, permanent fittings, and tubing suitable for use in 8000 psi aerospace fluid power systems. The standard treats each of these elements as part of a “system” in which each element has a specific critical relationship one to the other This document is applicable to both the pressure (8000 psi) and the return (4000 psi) portions of an 8000 psi rated system. Rationale for tests, testing philosophy, and key words are covered in Sections 5 and 6.
Standard

Method for Determining Relative Specific Gravity Polytetrafluoroethylene Tubing

2014-10-06
CURRENT
ARP1153A
This document describes a method for determining the specific gravity of tubing, fabricated from polytetrafluoroethylene, after a controlled heating and cooling cycle. The specific gravity obtained by this method is a measure of relative molecular weight of the resin. The measure, termed relative specific gravity (RSG), increases with decreasing molecular weight (see 2.3).
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