---
title: "2-Aminopyridine (504-29-0): exposure limits and sampling"
url: https://analyt-mtc.com/tools/hazard-search/2-aminopyridine-504-29-0/
lang: en
alternates:
  en: https://analyt-mtc.com/tools/hazard-search/2-aminopyridine-504-29-0/
  de: https://analyt-mtc.com/de/tools/gefahrstoffsuche/2-aminopyridine-504-29-0/
---

Hazard search

# 2-Aminopyridine

CAS number

504-29-0

Also known as

2-Pyridylamine · alpha-Aminopyridine · alpha-Pyridylamine

## UK workplace exposure limits

| Limit | Value | Applies to |
| --- | --- | --- |
| 8-hour TWA | 0.5 ppm |  |
| 8-hour TWA | 2 mg/m³ |  |
| 15-minute STEL | 2 ppm |  |
| 15-minute STEL | 7.8 mg/m³ |  |

## Sampling methods

| Method | Sampling | Medium | Analysis | Part numbers |
| --- | --- | --- | --- | --- |
| **OSHA PV2143** / 2-, 3-, and 4-Aminopyridine by GC-NPD / [Method document (opens in a new tab)](https://www.osha.gov/sites/default/files/methods/osha-pv2143.pdf) | Active (pump) | Two coated glass fibre filters in cassette | GC-NPD | [225-9004](https://analyt-mtc.com/catalog/product/skc-coated-treated-filters/#part-225-9004) / [225-1](https://analyt-mtc.com/catalog/product/aluminium-respirable-dust-cyclone/#part-225-1) |

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/)