Reference Source

Limestone — workplace exposure limit

What is the cas no. for Limestone — workplace exposure limit?

For Limestone, cas no. is 1317-65-3, verified against its source on 2026-08-05.

Limestone | 1317-65-3 | - | - | - |

— osha.gov, retrieved 2026-08-05

Substance
Limestone verified
CAS No.
1317-65-3 verified
NIOSH REL, as stated
TWA 10 mg/m3 (total) TWA 5 mg/m3 (resp) per cdc.gov
Sourceosha.gov
Verified
Review by
DatasetUS workplace chemical exposure limits: federal OSHA, Cal/OSHA and NIOSH, side by side

What cdc.gov says

NIOSH REL TWA 10 mg/m3 (total) TWA 5 mg/m3 (resp)

— cdc.gov, retrieved 2026-09-08

Sources

Last verified against source: . Due for re-check by . This page as Markdown · OKF bundle · full dataset as JSON.

What is the OSHA exposure limit for this substance?Find the exposure limit for a substance in workplace air — federal OSHA, California and NIOSH, side by side.

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