Powered Industrial Trucks (29 DFR 1910.178)

Powered Industrial Trucks (29 DFR 1910.178)

Toxic and Hazardous Substances 1910 Subpart Z Presented by: ETTA, OSH Division, 919-807-2875 This presentation was created by the N.C. Department of Labor for safety and health training. Objectives Introduce toxic and hazardous substances Identify where to find toxicological information Understand what a PEL is and how it differs from a TLV, REL, IDLH Become comfortable with the information contained in 29 CFR 1910 Subpart Z This presentation was created by the N.C. Department of Labor for safety and health training. 29 CFR 1910 Subpart Z 1910.1000 Air contaminants 1910.1001 Asbestos

1910.1002 Coal tar pitch volatiles 1910.1003 13 Carcinogens (4-Nitrobiphenyl, etc.) 1910.1004 alpha-Naphthylamine 1910.1006 Methyl chloromethyl ether 1910.1007 3,'-Dichlorobenzidine 1910.1008 bis-Chloromethyl ether 1910.1009 beta-Naphthylamine This presentation was created by the N.C. Department of Labor for safety and health training. 29 CFR 1910 Subpart Z 1910.1010 Benzidine 1910.1011 4-Aminodiphenyl 1910.1012 Ethyleneimine 1910.1013 beta-Propiolactone 1910.1014 2-Acetylaminofluorene 1910.1015 4-Dimethylaminoazobenzene 1910.1016 N-Nitrosodimethylamine 1910.1017 Vinyl chloride 1910.1018 Inorganic arsenic This presentation was created by the N.C. Department of

Labor for safety and health training. 29 CFR 1910 Subpart Z 1910.1020 Access to employee exposure and medical records 1910.1025 Lead 1910.1026 Chromium (VI) 1910.1027 Cadmium 1910.1028 Benzene 1910.1029 Coke oven emissions 1910.1030 Bloodborne pathogens 1910.1043 Cotton dust 1910.1044 1,2-dibromo-3-chloropropane 1910.1045 Acrylonitrile This presentation was created by the N.C. Department of Labor for safety and health training. 29 CFR 1910 Subpart Z 1910.1047 Ethylene oxide 1910.1048 Formaldehyde 1910.1050 Methylenedianiline 1910.1051 1,3-Butadiene 1910.1052 Methylene chloride 1910.1096 Ionizing radiation

1910.1200 Hazard communication 1910.1201 Retention of DOT markings, placards and labels 1910.1450 Occupational exposure to hazardous chemicals in laboratories This presentation was created by the N.C. Department of Labor for safety and health training. Toxic and Hazardous Substances Chemicals present in the workplace in various forms and which exert health effects Examples include: - Dusts - Mists - Fumes - Mixtures - Vapors This presentation was created by the N.C. Department of Labor for safety and health training.

Health Hazard Definition 1910.1200 Chemical that poses one of the following effects: - Acute toxicity (any route of exposure) - Skin corrosion or irritation - Serious eye damage or eye irritation - Respiratory or skin sensitization - Germ cell mutagenicity - Carcinogenicity - Reproductive toxicity - Specific target organ toxicity (single or repeated exposure) - Aspiration hazard This presentation was created by the N.C. Department of Labor for safety and health training. Routes of Exposure Three major routes: - Skin (dermal absorption) - Respiratory tract (inhalation)

- Digestive tract (ingestion) Additional routes: - Eyes - Mucous membranes - Injection (parenteral) This presentation was created by the N.C. Department of Labor for safety and health training. Toxicological Information Resources OSHA Chemical Sampling Information NIOSH Pocket Guide CDC Agency for Toxic Substances and Disease Registry SDS Safety Data Sheet This presentation was created by the N.C. Department of Labor for safety and health training. Terminology This presentation was created by the N.C. Department of

Labor for safety and health training. Permissible Exposure Limit (PEL) For chemical exposures, it is the maximum airborne concentration an employee may be exposed to for a particular time period Are regulatory limits enforced by OSHA Based on an 8-hour time weighted average (TWA) exposure May contain a skin designation This presentation was created by the N.C. Department of Labor for safety and health training. Permissible Exposure Limit In addition to chemical exposures, there are PELs for many physical hazards such as: - Noise - Non-ionizing radiation Currently, there are no PELs for biological

hazards (such as mold and bacteria) This presentation was created by the N.C. Department of Labor for safety and health training. Occupational Exposure Guidelines TLV Threshold Limit Value - Established by American Conference of Governmental Industrial Hygienists (ACGIH) REL Recommended Exposure Limit - Established by National Institute for Occupational Safety and Health (NIOSH) WEEL Workplace Environmental Exposure Level - Established by American Industrial Hygiene Association (AIHA) This presentation was created by the N.C. Department of Labor for safety and health training. Occupational Exposure Guidelines IDLH Immediately Dangerous to Life or Health

- A situation that poses a threat of exposure to airborne contaminants when that exposure is likely to cause death or immediate or delayed permanent adverse health effects or prevent escape from such an environment - An IDLH is established to ensure that the worker can escape from a given contaminated environment in the event of failure of the respiratory protection equipment This presentation was created by the N.C. Department of Labor for safety and health training. Averaging Time PELs for chemicals are subclassified by their averaging time, which is referred to as the time weighted average - 8-hour time weighted average (typically denoted TWA) - 15-minute TWA (typically denoted as a Short Term Exposure Limit or STEL)

- Instantaneous or no averaging time (typically denoted as the Ceiling) This presentation was created by the N.C. Department of Labor for safety and health training. 29 CFR 1910.1000 Air Contaminants This presentation was created by the N.C. Department of Labor for safety and health training. 29 CFR 1910.1000 An employees exposure to any substance listed in Tables Z-1, Z-2, or Z-3 of this section (1910.1000) shall be limited in accordance with the requirements of this section - Table Z-1 Limits for Air Contaminants - Table Z-2 - Table Z-3 Mineral Dusts This presentation was created by the N.C. Department of

Labor for safety and health training. Table Z-1 Limits for Air Contaminants Substance CAS No. ppm mg/m3 Acetone 67-64-1 1000 2400 Chlorine 7782-50-5

(C)1 (C)3 Nicotine 54-11-5 0.5 Skin designation X This presentation was created by the N.C. Department of Labor for safety and health training. Table Z-1 Limits for Air Contaminants Substance CAS No.

ppm mg/m3 Acetone 67-64-1 1000 2400 Chlorine 7782-50-5 (C)1 (C)3 Nicotine 54-11-5

Skin designation 0.5 X Substance: - Many substances have multiple synonyms - Synonyms for acetone: Dimethyl ketone, Ketone propane, 2-Propanone This presentation was created by the N.C. Department of Labor for safety and health training. Table Z-1 Limits for Air Contaminants Substance CAS No. ppm

mg/m3 Acetone 67-64-1 1000 2400 Chlorine 7782-50-5 (C)1 (C)3 Nicotine 54-11-5 0.5

Skin designation X Chemical Abstracts Service (CAS) Registry Number: - Unique identifier - Used in many resources, including: - OSHAs Chemical Sampling Information - NIOSH Pocket Guide This presentation was created by the N.C. Department of Labor for safety and health training. Table Z-1 Limits for Air Contaminants Substance CAS No. ppm

mg/m3 Acetone 67-64-1 1000 2400 Chlorine 7782-50-5 (C)1 (C)3 Nicotine 54-11-5 0.5

Skin designation X Parts per million (ppm): Parts of vapor or gas per million parts of contaminated air by volume PELs are 8-hour TWAs unless otherwise noted This presentation was created by the N.C. Department of Labor for safety and health training. Table Z-1 Limits for Air Contaminants Substance CAS No. ppm mg/m3

Acetone 67-64-1 1000 2400 Chlorine 7782-50-5 (C)1 (C)3 Nicotine 54-11-5 Skin designation

0.5 X Milligrams of substance per cubic meter of air (mg/ m 3) - Exact when entry is only in this column - Approximate when listed along with a ppm entry PELs are 8-hour TWAs unless otherwise noted This presentation was created by the N.C. Department of Labor for safety and health training. Table Z-1 Limits for Air Contaminants Substance CAS No. ppm mg/m3 Acetone

67-64-1 1000 2400 Chlorine 7782-50-5 (C)1 (C)3 Nicotine 54-11-5 0.5 Skin designation

X An entry in this column indicates the substance may be absorbed through the skin To avoid exceeding the PEL, cutaneous absorption should also be prevented This presentation was created by the N.C. Department of Labor for safety and health training. Table Z-1 Limits for Air Contaminants Substance CAS No. ppm mg/m3 Acetone

67-64-1 1000 2400 Chlorine 7782-50-5 (C)1 (C)3 Nicotine 54-11-5 0.5 Skin designation

X Ceiling values C employees exposure shall at no time exceed the exposure limit If instantaneous monitoring is not feasible, assess using 15-minute TWA (STEL) This presentation was created by the N.C. Department of Labor for safety and health training. Table Z-2 Substance Benzene 8-hour TWA Acceptable ceiling concentration

10 ppm 25 ppm Acceptable max peak above acceptable ceiling for an 8-hr shift Concentration Duration 50 10 minutes This presentation was created by the N.C. Department of Labor for safety and health training. Table Z-2 Substance Benzene

1910.1000(b) 8-hour TWA Acceptable ceiling concentration 10 ppm 25 ppm Acceptable max peak above acceptable ceiling for an 8-hr shift Concentration Duration 50 10 minutes

An employees exposure to any substance listed in Table Z-2, in any 8-hour work shift of a 40-hour work week, shall not exceed the 8-hour TWA limit given for that substance in Table Z-2 This presentation was created by the N.C. Department of Labor for safety and health training. Table Z-2 Substance Benzene 1910.1000(b) 8-hour TWA Acceptable ceiling concentration 10 ppm

25 ppm Acceptable max peak above acceptable ceiling for an 8-hr shift Concentration Duration 50 10 minutes An employees exposure to a substance listed in Table Z-2 shall not exceed at any time during an 8-hour shift, the acceptable ceiling concentration limit given for the substance in the table, except for a time period, and up to a concentration not exceeding the maximum duration and concentration allowed in the column under acceptable maximum peak above the acceptable ceiling concentration for an 8-hour shift This presentation was created by the N.C. Department of Labor for safety and health training.

Table Z-2 Substance Benzene 1910.1000(b) 8-hour TWA Acceptable ceiling concentration 10 ppm 25 ppm Acceptable max peak above acceptable ceiling for an 8-hr shift Concentration

Duration 50 10 minutes Example. During an 8-hour work shift, an employee may be exposed to a concentration of Benzene (with a 10 ppm TWA, 25 ppm ceiling and 50 ppm peak) above 25 ppm (but never above 50 ppm) only for a maximum period of 10 minutes. Such exposure must be compensated by exposures to concentrations less than 10 ppm so that the cumulative exposure for the entire 8-hour work shift does not exceed a weighted average of 10 ppm. This presentation was created by the N.C. Department of Labor for safety and health training. Table Z-3 Mineral Dusts Substance mppcf mg/m3

250 %SiO2+5 10 mg/m3 %SiO2+2 Silica Crystalline Quartz (Respirable) Quartz (Total Dust) 30 mg/m3 %SiO2+2 This presentation was created by the N.C. Department of Labor for safety and health training. Table Z-3 Mineral Dusts Substance mppcf

mg/m3 250 %SiO2+5 10 mg/m3 %SiO2+2 Silica Crystaline Quartz (Respirable) Quartz (Total Dust) 30 mg/m3 %SiO2+2 mppcf millions of particles per cubic foot of air This presentation was created by the N.C. Department of Labor for safety and health training. Table Z-3 Mineral Dusts Substance

mppcf mg/m3 250 %SiO2+5 10 mg/m3 %SiO2+2 Silica Crystaline Quartz (Respirable) Quartz (Total Dust) 30 mg/m3 %SiO2+2 Percentage of crystalline silica in the formula is the amount determined from airborne samples, except in those instances in which other methods have been shown to be acceptable

This presentation was created by the N.C. Department of Labor for safety and health training. Hierarchy of Controls Elimination Substitution Engineering controls - Isolation - Mechanical ventilation Administrative controls - Housekeeping - Scheduling Personal protective equipment This presentation was created by the N.C. Department of Labor for safety and health training. 29 CFR 1910.1000(e) To achieve compliance with paragraphs (a) through (d), administrative or engineering controls must first be

determined and implemented whenever feasible. When such controls are not feasible to achieve full compliance, protective equipment or any other protective measures shall be used to keep the exposure of employees to air contaminants within the limits prescribed in this section. Any equipment and/or technical measures used for this purpose must be approved for each particular use by a competent industrial hygienist or other technically qualified person. Whenever respirators are used, their use shall comply with 1910.134 Respiratory Protection. This presentation was created by the N.C. Department of Labor for safety and health training. Expanded Health Standards 1910.1052 Methylene Chloride This presentation was created by the N.C. Department of Labor for safety and health training. Methylene Chloride

Organic solvent often used in furniture stripping and spray adhesives Metabolized to carbon monoxide in the body - Concern about hypoxia in addition to normal central nervous system solvent effects - Possible carcinogen Routes of exposure: - Skin - Respiratory tract (inhalation) This presentation was created by the N.C. Department of Labor for safety and health training. Methylene Chloride Health Risks Exposures to methylene chloride have been known to: - Affect the heart, central nervous system and liver - Irritate the eyes and skin

- Increase the risk of cancer This presentation was created by the N.C. Department of Labor for safety and health training. 1910.1052 Methylene Chloride a) Scope and application b) Definitions c) Permissible exposure limits d) Exposure monitoring e)

Regulated areas f) Methods of compliance g) Respiratory protection h) Protective work clothing and equipment i) Hygiene facilities This presentation was created by the N.C. Department of Labor for safety and health training. 1910.1052 Methylene Chloride j)

Medical surveillance k) Hazard communication l) Employee information and training m) Recordkeeping n) Reserved o) Appendices -

Appendix A: Substance Safety Data Sheet and Technical Guidelines for Methylene Chloride - Appendix B: Medical Surveillance for Methylene Chloride - Appendix C: Questions and Answers Methylene Chloride Control in Furniture Stripping This presentation was created by the N.C. Department of Labor for safety and health training. Summary We have covered the following items during this presentation: - Toxic and hazardous substances - Where to find toxicological information - PELs and how they differ from TLVs, RELs, IDLHs - 29 CFR 1910 Subpart Z

This presentation was created by the N.C. Department of Labor for safety and health training. Thank You For Attending! Final Questions? This presentation was created by the N.C. Department of Labor for safety and health training.

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