[_____] mm [10] [_____] inches long, [plastic [_____] tube with an ion trap
to minimize contamination of the cell] [, and a minimum surface sensing
area of [______] square centimeters[______] square inches]. [The cell
shall be prepackaged by the manufacturer with a backfill material as
recommended by the manufacturer.] Provide cells with No. [10] [12] [_____]
AWG, [THHN] [_____] cable of sufficient length to extend to the [test
station] [junction box] without splicing. Reference electrodes shall have
a minimum 15 year life, stability of plus or minus 5 millivolts under 3
microamp load, and an initial accuracy of plus or minus 10 millivolts
referenced to a calibrated portable reference electrode.
2.14
STEEL FLANGES AND BOLTING
2.14.1
Steel Flanges
ASME B16.5 [667.5] [1335] [_____] N [150] [300] [_____] lb.
2.14.2
Bolting
ASTM A 307, Grade B for bolts: ASTM A 194/A 194M, Grade 2 for nuts.
Dimensions ANSI B18.2.1 for bolts, ASME B18.2.2 for nuts. Threads: ASME
B1.1, Class 2A fit for bolts, Class 2B fit for nuts. Bolts shall extend
completely through the nuts and may have reduced shanks of a diameter not
less than the diameter at the roof of the threads.
2.15
EXOTHERMIC WELD KITS
Exothermic weld kits specifically designed by the manufacturer for welding
the types of materials and shapes provided.
PART 3
EXECUTION
3.1
ANODE INSTALLATION
[IEEE C2] [NFPA 70].
3.1.1
Anodes and Lead Wires
Provide anodes and lead wires as follows [and in accordance with NACE RP0572
].
**************************************************************************
NOTE: Select the applicable paragraph(s) from the
following dependent upon selection of vertical or
horizontal anodes. Deep well anode beds may also be
used. Designer shall select anode and installation
procedures for specific site. Provide detail on the
drawings.
**************************************************************************
[3.1.1.1
Vertical Anodes
a.
Excavation for anodes: Excavate hole to [a minimum 75 mm 3 inches
larger than the packaged anode diameter.] [the diameter
indicated.] [1220 mm4 feet deeper than the anode length.] [the
depth indicated.]
b.
Excavation for wire trench: Excavate lead [and main feeder] wire
trenches to [the depth indicated] [not less than [455] [610] mm
SECTION 13111N
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