~ . Downloaded from https://www.everyspec.com MIL-STD-810D“ 19 July 1983 1 e. Droplet size is not considered to,be of any particular significance; however, fine spray (1.0 to 1.5 mm nominal dropiet size is suggegted) may be necessary to produce the icing. ... ~-~ ~ I-4-1 ~. (See General Requirements 4.5.7.) a. The test item shall be considered to have failed the teat if: (1) “.For equipment that must’operate without ice removal, the 3 performance of the test item has been degraded below that specified in the requirements document.
performance of the item has been degraded below the specified requirements n (2) For equipment that’can await ice removal before operation, the a I after normal ice-renmval efforta have been undertakenorif ice removal damegea -. ... the”equipment. ,. (3) A nonapparent hazardous situation hae been creat,ed elippery platform would not be considered a “nonapparenthazard.) (A b. The failure of a test item to satisfy its operational maintenance requirements must be analyzed carefully, and related must be considered, such aa: and information following the (1) Degradation allowed in operating characteristic freezing rain conditions. (2) .Necessityfor special kits or special operating procedures.
I-i.2 Summarv of test inf~. The following information m.ust.be provided in the test plan for the adequate conduct of the tests of section II: a. Test item configuration. b. Teet temperature conditions. c. Rain delivery method. d. Wind velocity (if applicable). :2 e. Additional guidelines. TOP 2-2-815, ~, 19 June 1975. DTIC number AD-Ao:i-317. .. b. Letter from C, Teat & Support Branch, TERWT, Eglin AFB, FL, subject: Freezing Rain Tests, to: US ArmyTest and Evaluation Command, ATTN: ‘DRSTE-AD-M,Aberdeen Proving Ground, MD, 15 November 1979. METHOD 521.0 19 JUIY 1983 521.0-4