---
title: "Piperazine (110-85-0): exposure limits and sampling"
url: https://analyt-mtc.com/tools/hazard-search/piperazine-110-85-0/
lang: en
alternates:
  en: https://analyt-mtc.com/tools/hazard-search/piperazine-110-85-0/
  de: https://analyt-mtc.com/de/tools/gefahrstoffsuche/piperazine-110-85-0/
---

Hazard search

# Piperazine

CAS number

110-85-0

Also known as

1,4-Diazacyclohexane · Hexahydropirazine

## UK workplace exposure limits

| Limit | Value | Applies to |
| --- | --- | --- |
| 8-hour TWA | 0.1 mg/m³ |  |
| 15-minute STEL | 0.3 mg/m³ |  |

### Notations

-   Sen: can cause sensitisation

## Sampling methods

| Method | Sampling | Medium | Analysis | Part numbers |
| --- | --- | --- | --- | --- |
| **MDHS 14/4** / General inhalable or respirable dusts by gravimetric analysis / [Method document (opens in a new tab)](http://www.hse.gov.uk/pubns/mdhs/pdfs/mdhs14-4.pdf) | Active (pump) | IOM with GF filter |  | [225-70A](https://analyt-mtc.com/catalog/product/haz-dust-7204-particulate-monitor/#part-225-70a) / [225-58F](https://analyt-mtc.com/catalog/product/glass-fibre-depth-filters/#part-225-58f) |
| **OSHA CSI** | Active (pump) |  | HPLC-UV | [226-30-18](https://analyt-mtc.com/catalog/product/skc-xad-sorbent-tubes/#part-226-30-18) |

Methods and limits as published by their agencies and summarised by SKC; check the current method and the limit that applies to you before sampling.

Source: [SKC Ltd (UK), Hazard Search, used with SKC's permission (opens in a new tab)](https://www.skcltd.com/hazard-search.html); [SKC Inc. (USA), Sampling Guides, used with SKC's permission (opens in a new tab)](https://international.skcinc.com/sampling-guides/)