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Appendix C
5/20/2009
7
Red – Flammability Hazard: Store in a flammable liquid storage area.
Blue – Health Hazard: Store in a secure poison area.
Yellow – Reactivity Hazard: Keep separate from flammable and combustible materials.
White – Contact Hazard: Store in a corrosion-proof area.
Green – Use general chemical storage (On older labels, this category was orange).
Striped – Incompatible materials of the same color class have striped labels. These
products should not be stored adjacent to substances with the same color label. Proper
storage must be individually determined.
6.
EQUIPMENT AND SUPPLIES
6.1 A Total Organic Carbon Analyzer capable of maintaining a combustion
temperature of 680
°
C and analyzing for organic and inorganic carbon. The
Shimadzu TOC5000 and the Shimadzu TOC5000A are used in this
laboratory.
6.2 Freezer, capable of maintaining -20
±
5
°
C.
6.3 Lab ware – All reusable lab ware (glass, Teflon, plastic, etc) should be
sufficiently clean for the task objectives. This laboratory soaks all lab ware
related to this method in a 10% HCl (v/v) acid bath overnight.
7.
REAGENTS AND STANDARDS
7.1 Purity of Water – Unless otherwise indicated, references to water shall be
understood to mean reagent water conforming to ASTM Specification D
1193, Type I. Freshly prepared water should be used for making the
standards intended for calibration. The detection limits of this method will
be limited by the purity of the water and reagents used to make the
standards.
7.2 Purity of Reagents – Reagent grade chemicals shall be used in all tests.
Unless otherwise indicated, it is intended that all reagents shall conform to
specifications of the Committee on Analytical Reagents of the American
Chemical Society, where such specifications are available. Other grades
may be used, provided it is first ascertained that the reagent is of
sufficiently high purity to permit its use without compromising the
accuracy of the determination.
7.3 Potassium Hydrogen Phthalate (KHP) C
6
H
4
(COOK) (COOH) – primary
standard for organic carbon.
7.4 Sodium Hydrogen Carbonate (NaHCO
3
) and Sodium Carbonate (Na
2
CO
3
)
– primary standard for inorganic carbon.
7.5 Hydrochloric Acid, 2 N –
Hydrochloric acid (HCl), concentrated, 172 ml
Deionized water, q.s.
1000 ml