- Synonyms: Beech; Birch; Mahogany; Maple; Oak; Sapele; Walnut - Hardwoods. Redwood; Teak - Softwoods. Western Red Cedar
- OSHA IMIS Code Number: 9210 - Hardwood; 9211 - Softwood; W102 - Western Red Cedar
- IMIS Name History: W103 - All soft and hard woods, except Western Red Cedar - was discontinued in 4/1993
- NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: ZC9850000
- NIOSH Pocket Guide to Chemical Hazards, Wood dust: chemical description, physical properties, potentially hazardous incompatibilities, and more
- Respirable dust not included for compliance, as per Standard Interpretation between NIOSH and OSHA, April 22, 1993.
- OSHA Permissible Exposure Limit (PEL):
- General Industry: 29 CFR 1910.1000 Table Z-1 -- 15 mg/m3 TWA (Listed under Particulates Not Otherwise Regulated - Total dust)
- Construction Industry: 29 CFR 1926.55 Appendix A -- 15 mg/m3 TWA (Listed under Particulates Not Otherwise Regulated - Total dust)
- Maritime: Maritime: 29 CFR 1915.1000 Table Z-Shipyards -- 15 mg/m3 TWA (Listed under Particulates Not Otherwise Regulated - Total dust)
- American Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Value (TLV):
Western red cedar0.5 mg/m3 TWA*; Sensitizer; Appendix A4 - Not Classifiable as a Human Carcinogen Classifiable as Human CarcinogenAll other species1 mg/m3TWA*Carcinogenicity Oak and beechAppendix A1 - Confirmed Human CarcinogenBirch, mohagan, teak, walnutAppendix A2 - Suspected Human CarcinogenAll other wood dustsAppendix A4 - Not Classifiable as a Human Carcinogen* Inhalable fraction, see Appendix C, paragraph A
- National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL): 1 mg/m3 TWA; Appendix A - NIOSH Potential Occupational Carcinogens
- Carcinogenic Classification:
- Potential Symptoms: Irritation eyes; epistaxis (nosebleed); dermatitis; respiratory hypersensitivity; granulomatous pneumonitis; asthma, cough, wheezing, sinusitis; prolonged colds; nasal cancer
- Health Effects: Nasal cancer (HE1); Respiratory sensitization---Asthma, hypersensitivity pneumonitis (HE9); Irritation- Eye, Nose, Throat, Skin---Marked (HE14)
- Affected Organs: Eyes, skin, respiratory system
- Minimizing dust levels at work sites will go a long way to decrease damage to employee health.
- Literature Basis:
- Date Last Revised: 03/18/2008
Monitoring Methods used by OSHA
Primary Laboratory Sampling/Analytical Method (SLC1):
- Tared 37-mm diameter low-ash polyvinyl chloride filter
- maximum volume: 960 Liters
- maximum flow rate: 2 L/min
- current analytical method: Gravimetric
- method reference: OSHA Analytical Method (OSHA PV2121)
- method classification: Partially Validated
- note: OSHA personnel must obtain tared sampling media from the Salt Lake Technical Center. DO NOT USE CYCLONE! Respirable dust not included for compliance purposes, as per Standard Interpretation between NIOSH and OSHA - April 22, 1993.
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