WebAcceptable daily intake or ADI is a measure of the amount of a specific substance (originally applied for a food additive, later also for a residue of a veterinary drug or pesticide) in food or drinking water that can be ingested (orally) daily over a lifetime without an appreciable health risk. ADIs are expressed usually in milligrams (of the substance) … WebWhile inhalation exposures at the MTD will not result in total exposures approaching those that can be administered via gavage, data in rats show that a lifetime inhalation exposure to 0.15 ppm TDI vapor, a concentration 30-fold greater than the TDI TLV (5 ppb), does not cause a carcinogenic effect (Löser 1983) and that inhalation of 2 ppm TDI ...
Acceptable daily intake - Wikipedia
WebApr 19, 2024 · C₉H₆N₂O₂. Synonyms. 2,4-diisocyanate-1-methylbenzene; TDI; 2,4-TDI; 2,4-toluene diisocyanate. Physical Properties. Physical Properties. Physical description. … WebIn 1959, the first TLV-TWA for the 2,4-TDI isomer was set at 100parts per billion (ppb); it was quickly lowered to 20ppb in 1961. From 1983 to 1998, the TLVs for 2,4-TDI were 5ppb as an 8-hr TWA ... caltrans type a ac dike
2,4-TOLUENE-DIISOCYANATE - Occupational Safety …
WebTLV-C (Threshold Limit Value - Ceiling) is a concentration that should not be exceeded at all during work exposure. ... Allergic reactions may be caused by substances such as cotton … Webactivities. The current OSHA Permissible Exposure Limit for both TDI and MDI is 0.02 ppm (Ceiling). A ceiling limit is not to be exceeded. The current American Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Value (TLV)for TDI is 0.005 ppm for an 8 hour TWA, with a 15 minute Short Term Exposure Limit (STEL) of 0.02 ppm. WebJul 1, 2016 · TDI is a liquid at room temperature, and can cause asthma-like conditions when inhaled as an aerosol. TDI is a key ingredient in many spray paints and coatings. ... (ACGIH) recognizes 0.005 ppm as its threshold-limit value (TLV) as an eight-hour time-weighted average and 0.02 ppm as a short-term exposure limit (STEL) for TDI, MDI and HDI. caltrans water planning tool