Document qdL4XJNVDeGawxG1dGqqpEkjx

LIA20020 utaoi 9ocirrx rat nm*a maTc^ial s cctccTTtt M m Kx^rauioUs mt t au aj al l o t s a Htan<ttA m/rr e a t d j w i 25, 1952 fRO/<T spKiric.mos r ao s is nux c c r o > souods Metal Conpoaltlan Allay* shall eonforn to AST* TentatlT# Specification for Soft Solder Motal, B32-iiT or latest is:ue theroof. Coro Site Tb* tabular octal wire shall hoot on* control hoi* or nor* than ono hde ^metrically ipteedi uniats otherwise specified. Theca corltios or* to ho filled ith th* 8pacific flux. Tho also of tho cor* or euros la based on tho pectriad weight of flux1 2.2* desired. Units 1.76 to 2>di (for Qrtdci 3$ and higher) 30* dcoirod, Unito Z.tti to }.9b (for Grades 30 and lower) {Tit* of Wire the alto of wire 1* to bo specified preferably froa ecmorcially orallable alias. Disasters aro to b* specified In Inches os for oxonplti 0.156* CU2S* 0U20* 0.109* 0.095* 0.063* 0.072* 0o..c0L6o5* 0.031* flux tna 1. Koalw Tho flux shall bo at least ojnivalont to romerrl il (rods W (Vetor White) rosin. AdditiTo agents aTO prohibited. 2. flaatlc Borin Flux slnllar to So. 1 to which Is added 8 to 1L* hgr weight of turpentine. 3. Modified Rosin Cbspoeltlon and/or performance ora to bo as apacified by autual egrevoent between producer and eonsuner. It shall bo free froa arr aatorials which will havo a toxic effect on persons using these solders In production soldering, unless othsrwlso agreed upon. **! PIMJWA'^gW-WTWW* "' ftwaw -*1--WW-S.lp afWWIpWPTr! nap/* nms-uMi.. aj'< n.j - i-s mi iri'i sii nitaiis--itml fimnsnn n i*mm*tJb*mmm**mern*m**iai*mml*m*tm+*mmmmima^m*m*m*m**** 20021 V-l* -1* 3 i Cocwe ret ally Available Spools, Cells and Servants o X* 1, 5, 10, 25, 50 end 65 pound spools t. 5, 10, and 25 pound eolls* 3. Sefmtrte out fro* wire. Method of Sanding Ono tost ond fro* each of 3 spools por lot of 1,000 lbs. or less. tncl. 0d o tost ond fro* ssch of 5 spools por lot of 1,031 to 10,000 lbs. One toot ond fro* ssch of 10 spools psr lot of 10,001 lbs. or moro. A tost snd Is obtained by cutting back sis foot of sirs fro* tho fro* sad of the spool snd then talcing tbs next six fset for ths test end. Method for Pstordnlng Haight of flux gprSa ftircalaln Crucible Reagent Silicone Oil (High flash snd boilii* point. lrw volatility) Procedure Seloct s 20 grsa seople of a eorod soldor snd wipe the surface with s elesa doth. Detendno the weight of tho sample to O.CH gram. Roll tho salder Into s small bell by winding it on itself around a doan jlass rod. Place the ball of solder in a dean crucible, edd sufficient oil to completely cover the solder and heel at the liquithis temperature ( +50J -Or) of tho soldore until it is completely melton. Carefully stir the aolton solder a few tines to freo ary entrapped flux. Allow tho adder to cool until It solldlfios, then raaovo it fro* the crucible, wash thoroughly with alcohol, dry and weigh the solder slug. cjuxuunow hr cent of Flux Initial Weight Find Weight of Cored Solder - of Solder * left Initial Welghi of Cored Solder' RMomncgrrs X. Dm flux is to bo permanently contained in tho wire until bested for application. 2. Thirty minutes after solder la applied, the rosldud flux (applicable to Type l)i (A) shall not bo roadily Indented by the fingernail, (8) shall permit, easy removal of applied powdered chalk or cotton wool with light brushing. See ASW 832-191 meSsaiOMaae* *wd**Mtah*udfeiin eii6*WMdi*aNi*iia