---
title: "Dimethylaniline (121-69-7): exposure limits and sampling"
url: https://analyt-mtc.com/tools/hazard-search/dimethylaniline-121-69-7/
lang: en
alternates:
  en: https://analyt-mtc.com/tools/hazard-search/dimethylaniline-121-69-7/
  de: https://analyt-mtc.com/de/tools/gefahrstoffsuche/dimethylaniline-121-69-7/
---

Hazard search

# Dimethylaniline

CAS number

121-69-7

Also known as

DMA · N,N-Dimethylamine · N,N-Dimethylaniline · N,N-Dimethylaniline (Amines, Aromatic) · N,N-Dimethylbenzenamine · N,N-Dimethylphenylamine

## UK workplace exposure limits

| Limit | Value | Applies to |
| --- | --- | --- |
| 8-hour TWA | 5 ppm |  |
| 8-hour TWA | 25 mg/m³ |  |
| 15-minute STEL | 10 ppm |  |
| 15-minute STEL | 50 mg/m³ |  |

### Notations

-   Sk: can be absorbed through the skin

## Sampling methods

| Method | Sampling | Medium | Analysis | Part numbers |
| --- | --- | --- | --- | --- |
| **MDHS 88** / VOCs by solvent desorption and GC / [Method document (opens in a new tab)](https://www.hse.gov.uk/pubns/mdhs/pdfs/mdhs88.pdf) | Passive | Passive sampler | GC-FID | [575-001](https://analyt-mtc.com/catalog/product/skc-organic-vapour-passive-samplers/#part-575-001) / [575-002](https://analyt-mtc.com/catalog/product/skc-organic-vapour-passive-samplers/#part-575-002) |
| **MDHS 96** / VOCs by solvent desorption and GC / [Method document (opens in a new tab)](https://www.hse.gov.uk/pubns/mdhs/pdfs/mdhs96.pdf) | Active (pump) | Silica gel tube (150/75mg) | GC-FID | [226-10](https://analyt-mtc.com/catalog/product/skc-silica-gel-sorbent-tubes/#part-226-10) |
| **MDHS 104** / VOCs by solvent desorption and GC / [Method document (opens in a new tab)](https://www.hse.gov.uk/pubns/mdhs/pdfs/mdhs104.pdf) | Active (pump) | Silica gel tube (150/75mg) |  | [226-10](https://analyt-mtc.com/catalog/product/skc-silica-gel-sorbent-tubes/#part-226-10) |
| **NIOSH 2002** / Aromatic amines by GC-FID / [Method document (opens in a new tab)](http://www.cdc.gov/niosh/docs/2003-154/pdfs/2002.pdf) | Active (pump) | Silica gel tube (150/75mg) | GC-FID or GC-NSD | [226-10](https://analyt-mtc.com/catalog/product/skc-silica-gel-sorbent-tubes/#part-226-10) |
| **OSHA PV2064** / Dimethylaniline by GC-FID / [Method document (opens in a new tab)](https://www.osha.gov/sites/default/files/methods/osha-pv2064.pdf) | Active (pump) | XAD-7 tube (80/40mg) | GC-FID | [226-98](https://analyt-mtc.com/catalog/product/skc-xad-sorbent-tubes/#part-226-98) |
| **Non-agency** / N,N-Dimethylaniline by Colorimetric analysis | Direct-reading | Gastec detector tube |  | [810-181](https://analyt-mtc.com/catalog/product/gastec-colour-gas-detector-tubes/#part-gst-181) |
| **Other** | Passive |  | GC-FID | [575-001](https://analyt-mtc.com/catalog/product/skc-organic-vapour-passive-samplers/#part-575-001) / [575-002](https://analyt-mtc.com/catalog/product/skc-organic-vapour-passive-samplers/#part-575-002) |
| **Other** | Passive |  | DR | [810-3D](https://analyt-mtc.com/catalog/product/gastec-passive-dosi-tubes/#part-gst-3d) |

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/)