1、MIL-P-L5OObA 5b W 7777706 02LL3LL 3 = I != e g - c c - _. - _. . . i- . . J MILITARY SPECIFICATION MIL-P-15006A 28 DECEMBER 1951 I SUPERSEDING WL-P-15006 (SHIPS) 1 May 1950 I PAPER, SHEATHING, FIRE-RESISTANT AND - WATER-REPELLENT . - i._- 1. SCOPE . 1.1 This specification covers sheathing paper for
2、covering thermal insulation for cold piping or tubing prior to lagging. - 2. APPLICABLE SPECIFICATIONS, STANDARDS, I DRAWINGS, AND PWLICA- “IONS - . 2.1 The fql.l%ng bpecifithe burner tube to the edge of the specimen % inch. The test flame shall be applied for 12 seconds and then dthdrawn. The dura-
3、 tion of the flaming shall be noted. The height Chat is charred shall be measured to the extent that it will separate readily when orurnpled beheen the thumb and forefinger. Not less than five specimens shall be tested in each direction of each sheet. 4.1 Inspection procedures. - For Naval purchases
4、 the general inspection procedures shall be in accordance with General Specifica- tions for Inspection of Material. - 4.2 Sampling.* 4.2.1 Lot.-For pumes of sampling, a lot shall consist of Bheathing paper offered for Uvwy at one time. 4.2.2 Sampling procedure for lot accept- ame impecticm and test
5、s.-If the lot consists of less than 60 rolls, 3 rolls shall be selected by the Government inspector. If these rolls; a total .of 10 sheets shall be obtained. 4.4.1.3 Report.-Results shall be reported as flaming time, which shall be the average time in seconds that the specimens continue to flame aft
6、er the burner flame is removed, and as char length, which shall the aver- age height of the charred areas in inches. 4.3 Inspection.-Sheathing paper shall be inspected !by the Government inspector to determine compliance with this specification. 4.4 Tests. - Unless otherwise Bpecified herein, tests
7、shall be conducted in accordance with the methods specified in Specification uu-P-31. -. a 4.4.2 Water repellency.-The water repel- 4.4.2.1 Apparatus. - The test apparatus shall cunsist of a metal ring 4 inches inside dimeter, 3 inches high and % inch thick, with smooth machined bottom edge, used wi
8、th a yoke of proper size. The yoke shall consist of a flat metal plate approximately 6 by 6 by Jk inches, equipped with threaded upright rods 4 inches high, and crossbar 7 by 1 lency shall be determined as follows : 4.4.1 Fire resistance test. - The fire re- sishnce shall be determined as follows: A
9、fiaratus.- (a) Ametal frame designed to hold a specimen bf paper 2% inches wide , and 8% inches long ,by gripping 8/8 inch of each long edge in a ,- I,- .- I _. . - -. r: b. . . ?. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-P-L5006A 56 W 77
10、77906 02LL3L3 7 - . . -. -. - * - 3 * - inches, notched at one end, and wing nuts to hold the bar in place. Rubber mats or soft felts 5.5 by 5.5 inches in size, shall be pro- vided (see fig. l). 4.4.2.2 Reagmt. - Water of reasonable purity such as ordinary drinking water shall be used in the test. 4
11、4.2.3 Test specimens.-Five test speci- mens, each 5 inches square shall be cut from different portions of the test sample in such a manner as to be thoroughly representative of the paper offered for delivery. The speci- mens shall be free from folds, wrinkles, or other blemishes not commonly inhere
12、nt in the paper. 4.4.2.4 Procedure. 4.4.2.4.1 The specimens shall be condi- tioned by the method specified in Specifica- tion UU-P-31, and tested in the atmospheric conditions therein specified. The temperature of the water shall be maintained at 68 to 71 F. 4.4.2.4.2 The metal ring and yoke as spec
13、i- fied in 4.4.2 and as shown on figure 1 shall be used. The test specimens shall be cut . into squares and fitted between the uprights or the yoke, and weighed to an accuracy of 0.001 gm. The specimens shall be tested on OOl gm. If required, a tared weighing envelop may be used, the sample hing wei
14、ghed more leisurely. The diameter of the tested area shall measured to the closest 0,001 inch. 44.2.5 Re.-The weight of absorbed water shall *be determined in grams to 0.001 gm. by the difference (W) between the final weight and original weight of the specimen. The area tested shall be calculated fr
15、om its diameter and recorded in square inches (S) . The absorptiveness (A) shall be reported in- grams per square inch by the formula: W A =- I S The report shall be the average absorptive- ness of the five specimens tested. The period of test for each specimen shall be 5 minutes. 4.4.3 Re jection;-
16、If the average value for any sheet fails to meet the requirements of any specified test, the entire lot represented -shall be rejected. 5. PREPARATION FOR DELIVERY *. -_ men. To begin the test, water shall be poured at exactly 68“ F. into the ring to a depth of approximately inch, cae being taken to
17、 wet the entire surface of the Rpecimen inside 5.1 Packing. 5.1.1 Fr domestic shipm,ent.-Each roll the ring simultaneously, and the stop watch shall have the paper firmly glued at the end started at the same time. To complete the with adhesive conforming to Specification test, the water shall be.pou
18、red quickly from JAN-P-140 to prevent unrolling of the the ring 15 to 20 secunds before expiration paper. ._41-=-_ -3 k Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-.flIL-P-L5006A 56 m 777770b 02LL3L4 7 m _ 1 * fi 5 k f, i E MILP-15006A i? p . 5.1
19、2 For overseas shm.,ent.-Each roll (b) Whether preparation for domestic $ or oversears shipment is required B with adhesive conf6rming to Specification (see 6.1) 6.2 Superseding documents.-This speci- fication tmpersiddes . MIL-P-15006 (SHIPS). The latter superseded Navy Specification * Notia-mm bv
20、enimeit specitict tio, or other ata are e for any purpose other than in connection with a definitely related GO- ment procurement operation, the United States Gvw eniment thereby incurs no responsibility nor any - obligation whatsoever; and the fact that the Govern- ment may have formulated, furnish
21、ed, or in any way applied the =id drawinge, specifications, or other e other as pereon in any or coiPoration, manner licensing o conveying the holder any or righb aw or permission to manufacture, nee, or aell any p.t. . ented invention that may in any way be relaw shall have the paper fidy glued, at
22、 theend 6 1% JAN-P-140 to prevent unrolling of the paper. Four rolls shall be packed in a cleated ply- mud, nailed wood, or wirehund box, con- forming to Specification JAN-P-105, JAN- P-106, or JAN-B-107, respectively. Each .59P7. box 5hajl be lined with a sealed waterproof bag made of mategal confo
23、rming to Secifi- . cation JAN-P-125. Seams and closures shall be sealed with adhesive conforming to Speci- fication JAN-P-140. - -1 5.2 Marking.-In addition to any special marking shall be in accordance with Stand- ard MIGSTD-129. - marking required by the montra& Or order, not to be regarded bY imp
24、lication Or Othm- I . ,thf?retQ. - t. J 6. NOTES 6.1 Ordering data. - Procurement docu- of SUP8 cnetodian: Wer interest: hrMT . . Navy-MCMdSY &tion. &Force. ments should specifg the followhg: I - a) Title, number, and date o this 8pec- - 4- - - _. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
