Pamphlets on Forestry, Volume 281991 |
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... less than 1 ppm and the pH is 7.0 or less , surface deterioration usually will not shorten the service life of the tower to less than 20 years . Higher chlorine residuals and / or more alkaline circulating water may be expected to ...
... less than 1 ppm and the pH is 7.0 or less , surface deterioration usually will not shorten the service life of the tower to less than 20 years . Higher chlorine residuals and / or more alkaline circulating water may be expected to ...
Page 123
... less than eight inches thick . Concrete Chimneys : These should be cast in place and reinforced vertically and horizon- tally to avoid cracks liable to occur from tem- perature stresses or unequal settlement of foundation . The metal ...
... less than eight inches thick . Concrete Chimneys : These should be cast in place and reinforced vertically and horizon- tally to avoid cracks liable to occur from tem- perature stresses or unequal settlement of foundation . The metal ...
Page 123
... Less than 2 years " 1 " 1 Room Heavy pitch More than 10 years " 1 5 36-90 None More than 3 years " 1 3-5 Room Less than 1 40-150 " I Sulfuric acid 95 36-200 Lead Acid resistant paint More than 5 years Long life - More than More than 10 ...
... Less than 2 years " 1 " 1 Room Heavy pitch More than 10 years " 1 5 36-90 None More than 3 years " 1 3-5 Room Less than 1 40-150 " I Sulfuric acid 95 36-200 Lead Acid resistant paint More than 5 years Long life - More than More than 10 ...
Contents
List of Figures | |
OBJECTIVES AND METHODS OF THE STUDY | |
Physiographic Regions | |
9 other sections not shown
Common terms and phrases
acid anden angreb arbejde average avons Berkeley Berkeley blev brænde CALIFORNIA LIBRARY caractéristiques cellulose chimney CHLORINE civilingeniør Claypan collage colles cooling tower cuisson d'humidité d'une dampede danske derfor deux Douglas fir dypning emner enkelte essais être fait farm construction farmers fire fire-stopping firkanter flue følge følgende Forest Forestry forhold forskel forskellige Forskningsudvalg forsøg forsøgene grades havde hêtre Hvidkilde industry joists K. F. Egund kævler Korinth l'air la colle laboratoire længde Langebæk langt le bois lignin longueur måde MANUFACTURERS material mills native lumber obtenus ont été øvrige packaging parketstav particle board pâtes Peinture percent pièces pine planker Prairie række råtræ redwood region repéré résultats sammenligning sample farms Savværk sawmill séchage skæring snitbredde soude species stablen STUD styrke suivant svampe tabel TECO temperature tilfælde tion træ Træindustriens udbytte udtørring undersøgelser UNIVERSITY OF CALIFORNIA utilisés utilization Vamdrup vist wood tanks دو