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ELEMENTS by ICP (Microwave Digestion): METHOD 7304, Issue 1, dated 25 June 2014 - Page 6 of 11

Table 1. PROPERTIES AND SAMPLING VOLUMES Element (Symbol)

Aluminum (Al) Arsenic (As) Barium (Ba) Boron (B)(1) Beryllium(Be) Calcium (Ca)(1) Cadmium (Cd)(3) Cobalt (Co) Chromium (Cr) Copper (Cu) Iron (Fe) Potassium (K)(1) Lithium (Li)(1) Magnesium (Mg) Manganese (Mn) Molybdenum (Mo) Sodium (Na)(1)(3) Nickel (Ni) Phosphorus (P) Lead (Pb) Platinum (Pt)(3) Selenium (Se) Strontium (Sr)(1) Tellurium (Te) Titanium (Ti) Thallium (Tl) Vanadium (V) Yttrium (Y) Zinc (Zn) Zirconium (Zr)

Properties [13] Atomic Weight

26.98 74.92 137.3 10.81 9.01 40.08 112.40 58.93 52.00 63.54 55.85 39.10 6.94 24.31 54.94 95.94 22.99 58.71 30.97 207.19 195.09 78.96 87.62 127.60 47.90 204.37 50.94 88.91 65.37 91.22

MP, °C

660 817 727 2300 1278 842.5 321 1495 1890 1083 1535 63 179 651 1244 651 98 1453 44 328 1769 217 769 450 1675 304 1890 1495 419 1852

Air Volume, L @ OSHA PEL [4] MIN

MAX

5 5 5(2) 5 1250 5 13 25 5 5 5 5 100 5 5 5 13 5 25 50 1250 13 5 25 5 25 5 5 5 5

100 2000 200(2) 2000 2000 200 2000 2000 1000 1000 100 2000 2000 67 200 67 2000 1000 2000 2000 2000 2000 2000 2000 100 2000 2000 1000 200 200

(1) No PEL, REL, or STEL data found [1,14]. (2) Air Volumes Estimated from TWA and LOQ’s (see Tables 2, 3). [10] (3) These metals, as well as tin and antimony, forms precipitates in nitric acid when chloride from the PVC filters is present.

NIOSH Manual of Analytical Methods (NMAM), Fifth Edition