National Standards for irrigation water quality

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N~Hé9fi-?lttffi'-1-~ ~J;Ë 89:ll î@iffi,jj;ftp ~JNt;f,rlfiffi:f!.gffiiffl.it!M $ ~iJ!ll~é91fl-:f!.gffi. 6. 3 *ir-?l~r oo § é9tî~HHfr1f~.W..~ 2. ~z ;&œ~~*IDtfi-lfË~~**nm ·-· Ff % ~ § fflll jË 1f #[. *~MIi tng/L Y± ff 7tt'TJ:1.>~li! 1 1:'IUUUit JUf ~ ~fiJi#f. 3 ~;.Lt GB 7488 (BODs) 2 it~~-- ~îUUt#f. 10~800 GB 11914 (CODc,) 3 ;tr-r-1-~ ilf. /Jl#f. 5 k'J...t tW. + tJt t1h5t $1:. ~ z m GB 10911 3 GB 5084-92 Jf ~- Jijj § !'1-~ iË 1f 1t f.i:il'-1Jlfj flll mg!L t:E ff: 5ti'n-ntt*i» • llfl lâî -=f ~lHïiî it .ni Efl ~ ~ ,h'tJ'tltft o. 05~2. 0 lf,; ti ilM f~ ·'JJ IE Efl ~ t'ti'f1] tt. ff; t'f. ~ mt <LAS) ( MBAS ) , i;li W: ~:,( GB 7494 LAS it ~ .. 5 ~1.EO! r!-< &~-i.iiH'l'-~&ffl i~ -- O. 05~2. 0 ïîtr ~ JJI! F□ !fi ~ L't lt !lilfl::ltfg~* ~ffll ~t\:lt{g~ fg ~, il'-H~ j ,Jl:~fll )fi GB 7479 i flm.~z fil 1 1 6 -~-~ 1 O. 025~0. 6 ~* jJ*;i:1:7Ji7.I(~ 1 (1::,( p it) 1 ~iiHt~l1Ti:î, il@tlff j f!.liiHt~tt jJ 1'iHll ~ fil ;I: Fi1- ~ ! ,~.fil i ' 7 *ilii ! 8 pH fil i J&f.">; $ t&it 1 fl.J...... ,.....,. 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GB 7475 €i-~lli1.t! o. 01~0. 2 fij 7j( ff 't' éf.J ,g. «f' ~ iUJHtftft.!l~ 0.01~0.30 GB 7470 17 -~-- mt -=f IIJk i& 7tft J'tll t! *:i1i.l!éf.Jff ilh~il'! IH1 lJHl éf.J ,g, ffl :Il , 1îi&* o. 05~5 § 1i'i m • éf.J ;flLi: f1. •-s-~ lli1. t! 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