7 articles in this issue
Dulsalam Dulsalam
A study of the number of logging trucks used by a forest company in. Riau was carried out in 1989. To evaluate the number pf ... see more
Gustan Pari
creening triala were cond.ucted to determine. t~, antitermitic properties. of methanol:dieth.yl ether:ethyl acetate (M:D:E) and acetone:diethylether:ethyl acetate (A:Dfg) tannin extract obtained from Acaciadeeurrens bar... see more
Rodjak Memed
The "fiy1iialal'ld :chemical properties of urea formaldehyde resin were tested based on the Indonesian Standard. which cO'nlittfl)t appearatlceipropertie1, pH, tree fOrmaldehyde, solid content and pot'~llfe. TM re.ult 1hou>s tha... see more
At the present investigation two lignins taere prepared for the comparison of physicochemical properties. One represent«a lignin o'f)tained by evapomtion and the other represents a lignin isolated by precipitation.For each treatme... see more
Bambang Wiyono,Surdiding Ruhendi,Kumia Sofyan
In this investigation, the pith content of the bagaBBe samples were 10, .20, and 30 psrcent. Cookinf trials incoporated varioulpercentt11es of soda (NaOH) bei'ltf 15, 18, and .20 percent, concecutively. The cbndition applied were tiB follow temperature, 1... see more
Hartoyo NurmaJa Hudaya
Experimental study Q.n tj,am activation of biomaas char for manufacturing activated charcoal wa conducted in Fo'IWt Product Reaearch ancl" Development Centre, Bogor. The material used in these experiment&nbs... see more