The book Bulletin 673 was written by author United States Bureau of Mines Here you can read free online of Bulletin 673 book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Bulletin 673 a good or bad book?
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. jwinchtoiinch.do.... AtorfitoAlnch,p€r cent 2.6 7.7 17.8 ^ inch to A inch, per cent 241 Throngh A inch, per cent 47.9 Machine used Renfrow No. 1. Briquetting tempera- ture •F.. Binder— ITind . 149 W. G. P. Laboratory No Amonnt.per cent. . Average weight of briquet, pounds. I>iop test (1-fiich soeen): Held percent.. Passed. . ...do .. 3410 7 0.60 Weather test: Time exposed. . .days. . Condition , 201 B 201 B 201 B 201 B Chemical analyses of coal and briquets. • Test 130. Test 130, Laboratory N...o. . Proximate: Moisture. .... per cent. . 2.62 37.09 64 32 6.97 1.17 6.08 79.02 1.70 6.87 1.99 Vof^tfl^ Fn^tt4»- do 36.66 do.... 6414 Ash do.... 7.30 Sulphur do.... 1.12 Ultimate: Hydrogen do.... 484 Ciurbon do.... 77.39 Nitrogen. do.... 1.53 OXTESD do .. 7.64 Digitized by LjOOQ IC 222 FUEL-BBIQUBTTIKG INVEBTIGATIOS^S. Extraction oTialyies, Pitch. FueL Briquets. Tenn. No.L Test 130. Laboratory No 9410 Air-drying loss . . . . war cent. 2.50 3.16 1 00 Extract by CSj (as received) Pitch In briquet by analysb .:.:;...;;::.;:;;.^.dS^:: do....
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