Document 6R7aKLQKgdg0bp6we0wOeX4Kd

Gross References; Sales Investigation Mo o WK 594 EETUBN TO MARSHALL LABORATORY `MNincvctY' Je 2 '53 MEMORANDUM REPORT NO c M-323 cGO s Co Rq lio Merkle* Lab0 Op Dp Shreve8 Labs Ho $0 Barbebem Lab? S.Q H Lowello Lab0 Bp To Hacks* Pariin 3 v Wo Gilberts Pari in l A. Fluerogs wiim0 / Marshall Laboratory October 24s 1950 CLOSED GUP PLASH POINTS OF CERTAIN 93 202* 246fl AMD 253 LIME FINISHES Summarys Flash Point determinations were made on a series of Duco and Dulux finishes using a Tag Closedl Tester (AoScTMp D5636) in accordance with 0 request from Mr, Bp A Fluevog#. Invest! gation NOo WR-594, The following results were obtained - Code Color Flash Point 0 Fo(Tag Closed TTeester) 93-004 93-005 93-50# 93-1032 93-1863k 93-35856 Green clack 'White Blue Red Gray 53 81 50 53 53 55 202-3939 3<> Green Metallic 23 246-1 246-2048 246-9089R 246-35856 246-35857 253-020 253-OO95 White Black Red Gray Blue Black Whits 30 31 23 17 14 34 36 Details of the Testing Procedure; All samples were tested according to TM 205 A (ApSpTc Mo D56-36) in every detail except that the introduction of the test flame was made before and' at every one minute interval after heat ing was started1 until the sample flashed9 This was done to provide a more uniform method of testing because it was difficult In the first part of the test to control the temperature rise within the specified limits of l.,,8 + Oo2F due to the low temperatures that had to be'employedo None of the samples showed skin formation during the test probably due to the closed feature of the tester and the low temperatures employedo N35421 D '2 ** The 93 Line samples were cooled by store*?,in a. freezer Laving a temperature of 14F* (*10Q o)<, The precooled sample was placed in the precooled cup and tested immediately,, Crushed ice and water were used in the bath of the tester* The 202* 246* and 253 Line samples were handled as follows; the sample was measured into the tester cup and the bath of the tester was filled with a 23$ aqueous sodium chloride solution* then the entire tester ready for testing was placed in a dry ice chest having a temperature of about ~40F 0 until the sample temperature fell below 0F<> The tester was tahen from the dry ice chest and tested immediately,, MARSHALL LABORATORY GhO'O;jb * v Go ,, 09 COKHOR DUP030003224