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-Federal Register / Vol. 59, No. 20 / Monday, January 31, 1994 / Rules and Regulations 4515
<br /> (b) 1992.Available from:American Public .Section 11.Parts 11.01 and 11.02.
<br /> ' ■ Health.Association,1015 Fifteenth American Society for Testing and
<br /> (6)."Standard Methods for the Street.MV.,Washington.DC 20005. Materials, 1993. 1916 Race Street,
<br /> Examination'of Water and Wastewater", Cost 5160.00_Tables LA,IB,IC,ID and Philadelphia,PA 19103.Cost available
<br /> Joint Editorial Board,American Public IE• from publislier.Tables LB,IC,M.and IF—
<br /> Health Association,American Water .
<br /> Works Association.and Water (10).'.Annual Book of Standards-- C. -
<br /> Environment Federation,18th Edition, Water and Environmental Technology," ■ * -
<br /> TABLE Il.—REQUIRED CONTAINERS, PRESERVATION TECHNIQUES', AND HOLDING TIMES
<br /> Parameter NoJname ' Container Preservationxs Maximum
<br /> holding
<br /> title 4
<br /> Metals 7:
<br /> 10. Boron ...... ...........__,..... ...... .............: F> (PFrE). or Quartz HNO3 TO pHQ ................. ...... 6 months
<br /> ..
<br /> 3, 5-8, 12. 13, 19, 20, 22. 26, 29. 30, 32-34,
<br /> 36, 37, 45, 47, 51, 52, 58--60, 62, 63, 70-
<br /> 72, 74, 75. Metals, except boron, chromium
<br /> Vi and mercury.
<br /> 42.Organic Carbon ..... ....................... G .�.._.„....�. . ... Cool to 4 •C HCI or H,:04 or H3PO4,to pH<2 28 days.
<br /> 61.Silica ..._.. ,._... _................ .. ..... P (PFTE). or Quartz » Coat.4°C ....---_------------------------- 28 days-
<br /> . _ � •
<br /> Table li--Notes:
<br /> I Potyethylene(P)or Glass(G).
<br /> =Sample preservation should be performed imnvdiatety upon sample collection. For composite chemical samples each aliquot should be pre-
<br /> served at the time of collection. When use of an automated sampler makes it impossible to preserve each aliquot, then chemical samples may
<br /> be Preserved by maintaining at 4°C until conwsrting and sample splitting is completed.
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<br /> When any sample is to be shipped by common carrier or sent through the United States Mails, it must comply with the Department of Trars-
<br /> portation Hazardc,;js Materials Regulations (49 CFR part 172). The person offering such material for transportation is responsible for ensuring
<br /> such compliance. For the preservation requirements of Table 11.the Office of Hazardous Materials. Materials Transportation Bureau, Department
<br /> of Transportation has detemtiined that the Hazardous Materials Regulations do not apply to the following materials: Hydrochloric acid (HC1) in
<br /> r+rarterns at concentrations of 0.04%by weight or less(pH about 1.96 or greater): NMc acid (HNO3) in water solutions at concentrations of
<br /> 0-15% by weight or less (pH about 1.62 or greater); Sulfuric acid (14=50.) in water solutions at concentrations of 0.35% by weight or less (pH
<br /> abota I.IS or greater); and sodium-hydroxide(NaOH) in water solutions at Concentrations of 0.080%by weight or less (pH about 12.30 or less).
<br /> •Samples should be analyzed as soon as possible after collection. The times listed are the maximum times that samples may be held before
<br /> arel�Psis is 1d Atill be considered valid. Samples may be held for longer periods only if the permittee, or monitoring laboratory, has data on file to
<br /> specific of samples under study, the analytes are stable for Ow longer time, and has received a variance from the Re-
<br /> gional Administrator underr.3(e). Some samples may not be stable for the maximum time period given in the table.A permittee. or monitor-
<br /> ing Laboratory, is obligated to hold the sample for a shorter time if knowledge exists to show that this is necessary to maintain sample Stab4tty.
<br /> See§1;36.3(a)for details.The term"analyze immediately”usually means within IS minutes or less of sample collection.
<br /> Samples should be filtered immedlately on-site before adding preservative for dissolved metals.
<br /> IFR Doc-94-1625 Filed 1-28-94;8:45 am]
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