Alligator Rivers region regional surface water quality monitoring : November 1978 - April 1981
Alligator Rivers Region - Regional Surface Water Quality Monitoring, Volumes 1,2,3 (Plus draft)
Northern Territory. Department of Transport and Works. Water Division, Environmental Section
E-Publications; E-Books; PublicationNT; Report ; 49/1983
At head of title: Water Division, Dept. of Transport & Works, Northern Territory. "April 1983".
Water quality -- Northern Territory -- Alligator Rivers Region; Hydrology -- Northern Territory -- Alligator Rivers Region
Northern Territory Government
Report ; 49/1983
3 volumes. ; 30 cm
Attribution International 4.0 (CC BY 4.0)
Northern Territory Government
https://hdl.handle.net/10070/672725 [Alligator Rivers region regional surface water quality monitoring : November 1978 - April 1981 - WRD83049_v_1.pdf]; https://hdl.handle.net/10070/672727 [Alligator Rivers region regional surface water quality monitoring : November 1978 - April 1981 - WRD83049_v_2.pdf]; https://hdl.handle.net/10070/672729 [Alligator Rivers region regional surface water quality monitoring : November 1978 - April 1981 - WRD83049_v_3.pdf]
Technical Report WRD83049 Viewed at 14:07:10 on 29/07/2010 Page 88 of 440. 8 7. (v) J-a" u o! soon All sarrmles p1aced on iCe as possible are tl1e~ returned to the ulastic and returned to the labor~tory 2s preferably within two hours. (vi) Record field :oeas...;,rements of un terrr:>erature c.nd conductivity, read, check and record-the g~uge heiEht. On return to the field laboratory place the GB~ffi.6.L pp_;:)~....6lJ...t,lERS sam:_JJ.e in the deep freeze and ot:'"""ler under ~ormal refrigeration to await filtration. (vii) sarr:ples FILTR.P.'T'TON PROCEDURE Normally two sets of 3 filtration u:c,:c -cs are set up and operated by two officers as follows: ( i) Jcdd 30 mls of 2J.1 acid Cl'Ji tric acid for metals or Hydrochloric for nutrients) to the top reservoir of the fi l tratior.. unit and s~'12..ke vigorously so that the acid uenetrates to all internal uarts of the unit, then discard~ - . (ii) Rinse six (6) tines with Milli-Q wate~, vigorously es above. S "'a,ri nee .~ "-- 0 (iii) Place a previously acid washed filter the holder end re-assecble the unit. Note: to handle the filter paper o:nly by the edges contact with any othe~ objects. paper ir. Use tweezers avoiding (iv) mixing "" th OJ... e Vigorously sna:o:e the sa~ple bottle to ensure co:oplete and irr~ediately add 50 w~s of sanple to the tou cna~ber """l' ...Ll -cer. ( v) Pull throJ.gh to t~e botto:n ch'""' T":"'":Jer Yli th the aid o:f t!:e vacuum system. (vi) Swirl the filtered ~:ater arou~d the botton chamber and discharge to was~e. (vii) Add of sc.mple to ' ..... l ' ana ll_T-er inside top The above procedure 2D-:J.:.:es to each o:. -cne tr...ree units used to urocess one sam~le as follows: UNIT .t:. (BCl washed) o: .-=- " ., ' ...Ll...:..-cer (a) Collect 250 rrf s of sc.:::ple th.ro~.;.gh a glass-fibre filter - ' ' ~ 1 . ror nu-crle~~s ana ys~s. I I I I I I I I I I I I I I I I I I I I
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