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______________________________________________________________________________________________ <br />Nitric acid (67 - 70%)Revision Date 24-Dec-2021 <br />Environmental Precautions Should not be released into the environment. Do not flush into surface water or sanitary <br />sewer system. See Section 12 for additional Ecological Information. <br />Methods for Containment and Clean <br />Up <br />Soak up with inert absorbent material. Keep in suitable, closed containers for disposal. <br />Sweep up and shovel into suitable containers for disposal. Wear self-contained breathing <br />apparatus and protective suit. <br />7. Handling and storage <br />Handling Use only under a chemical fume hood. Wear personal protective equipment/face protection. <br />Do not get in eyes, on skin, or on clothing. Do not ingest. If swallowed then seek immediate <br />medical assistance. Do not breathe mist/vapors/spray. Keep away from clothing and other <br />combustible materials. <br />Storage.Keep containers tightly closed in a dry, cool and well-ventilated place. Do not store near <br />combustible materials. Do not store in metal containers. Keep in properly labeled <br />containers. Corrosives area. Incompatible Materials. Combustible material. Strong bases. <br />Reducing Agent. Metals. Finely powdered metals. Organic materials. Aldehydes. Alcohols. <br />Cyanides. Ammonia. Strong reducing agents. <br />8. Exposure controls / personal protection <br />Exposure Guidelines <br />Component ACGIH TLV OSHA PEL NIOSH IDLH Mexico OEL (TWA) <br />Nitric acid …% [C ≤ 70 %]TWA: 2 ppm <br />STEL: 4 ppm <br />(Vacated) TWA: 2 ppm <br />(Vacated) TWA: 5 mg/m3 <br />(Vacated) STEL: 4 ppm <br />(Vacated) STEL: 10 mg/m3 <br />TWA: 2 ppm <br />TWA: 5 mg/m3 <br />IDLH: 25 ppm <br />TWA: 2 ppm <br />TWA: 5 mg/m3 <br />STEL: 4 ppm <br />STEL: 10 mg/m3 <br />TWA: 2 ppm <br />STEL: 4 ppm <br />Legend <br />ACGIH - American Conference of Governmental Industrial Hygienists <br />OSHA - Occupational Safety and Health Administration <br />NIOSH IDLH: NIOSH - National Institute for Occupational Safety and Health <br />Engineering Measures Use only under a chemical fume hood. Ensure that eyewash stations and safety showers <br />are close to the workstation location. Ensure adequate ventilation, especially in confined <br />areas. <br />Personal Protective Equipment <br />Eye/face Protection Wear appropriate protective eyeglasses or chemical safety goggles as described by <br />OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard <br />EN166. Tight sealing safety goggles. Face protection shield. <br />Skin and body protection Wear appropriate protective gloves and clothing to prevent skin exposure. <br />Respiratory Protection Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard <br />EN 149. Use a NIOSH/MSHA or European Standard EN 149 approved respirator if <br />exposure limits are exceeded or if irritation or other symptoms are experienced. <br />Hygiene Measures Keep away from food, drink and animal feeding stuffs. When using do not eat, drink or <br />smoke. Contaminated work clothing should not be allowed out of the workplace. Provide <br />regular cleaning of equipment, work area and clothing. Avoid contact with skin, eyes or <br />clothing. Remove and wash contaminated clothing and gloves, including the inside, before <br />re-use. Wear suitable gloves and eye/face protection. <br />______________________________________________________________________________________________ <br />Page 4 / 9