ASTM E405-04(R2018) pdf free download

ASTM E405-04(R2018) pdf free download.Standard Test Methods for Wear Testing Rotary Operators for Windows
1. Scope
1.1 These test methods describe the wear testing of gear- type rotary operating devices used for opening and closing windows (Note 1). 1.2 These test methods do not directly determine the effects of varying environmental conditions but may be employed after environmental exposure to evaluate the effect of such exposure. 1.3 These test methods are not intended to evaluate the structural adequacy of the operator in resisting the maximum force to which it may be subjected. N OTE 1—Certain types of rotary window operators, such as torque-bar operators and telescopic operators cannot be tested by these test methods. 1.4 The values stated in inch-pound units are to be regarded as the standard. The metric equivalents of inch-pound units may be approximate. 1.5 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 appro- priate safety, health, and environmental practices and deter- mine the applicability of regulatory limitations prior to use. For a specific hazard statement, see 9.1.2. 1.6 This international standard was developed in accor- dance with internationally recognized principles on standard- ization established in the Decision on Principles for the Development of International Standards, Guides and Recom- mendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
3. Terminology
3.1 Definitions—Definitions are in accordance with Termi- nology E631 unless otherwise indicated. 3.2 Definitions ofTerms Specific to This Standard: 3.2.1 closing torque, n—a constant torque applied to the input shaft when the operator is in the fully closed position, simulating the forces applied by a person tightly closing the window and shall be expressed in pound-force-inches (or newton metres). 3.2.2 fully closed position ofthe operator, n—the position of the operator with the window in a fully closed position. 3.2.3 fully opened position ofthe operator, n—the position ofthe arm from 2 to 5° short oflocking the mechanism with the window in an open position. 3.2.4 gear-type rotary operator, n—a mechanical operating device for opening and closing windows. It consists basically of an operating handle turning an input shaft which drives a gear mechanism that causes an arm or arms to pivot, operating the window. 3.2.5 operating moment, n—the product of the applied force and the length of the output lever arm from the point of load application to the pivot axis. It shall be expressed in pound- force-inches (or newton metres). During a test cycle, the operating moment varies from a maximum value with the arm in a centered position (peak operating moment) to some lesser value as the arm is moved away from the centered position. 3.2.6 operator test specimen, n—an entire, assembled gear- type rotary operator, including the operating handle. 3.2.7 test cycle, n: 3.2.7.1 Test Method A—fully opening and fully closing the operator. 3.2.7.2 Test Method B—the number of rotations of the handle to open and close the operator fully. 3.2.8 test force, n, for Test Method A—the force applied to the operator arm at the point of attachment. The required test force in pounds-force (or newtons) is equal to the specified peak operating moment in pound-force-inches (or newton metres) divided by the distance in inches (or metres) measured perpendicular to the line of action of the force from the pivot axis to the point of attachment.
4. Summary of Test Methods
4.1 These test methods consist of subjecting the rotary operator to an operating moment against which the operator shall work in a cyclic function of opening and closing. Test Method A evaluates the operator for its ability to resist wear through a given number of cycles against the test moment with a specified torque applied to the input shaft. Test Method B evaluates only the rotating fingergrip portion of handle assem- blies having rotating fingergrips.