---
title: "o-Dichlorobenzene (95-50-1): exposure limits and sampling"
url: https://analyt-mtc.com/tools/hazard-search/o-dichlorobenzene-95-50-1/
lang: en
alternates:
  en: https://analyt-mtc.com/tools/hazard-search/o-dichlorobenzene-95-50-1/
  de: https://analyt-mtc.com/de/tools/gefahrstoffsuche/o-dichlorobenzene-95-50-1/
---

Hazard search

# o-Dichlorobenzene

CAS number

95-50-1

Also known as

1,2-Dichlorobenzene · 1,2-Dichlorobenzene (o-dichlorobenzene) · 1,2-Dichlorobenzene (ortho-dichlorobenzene) · o-Dichlorobenzene (1,2-dichlorobenzene) · o-Dichlorobenzene (hydrocarbons, halogenated) · ortho-Dichlorobenzene

## UK workplace exposure limits

| Limit | Value | Applies to |
| --- | --- | --- |
| 8-hour TWA | 25 ppm |  |
| 8-hour TWA | 153 mg/m³ |  |
| 15-minute STEL | 50 ppm |  |
| 15-minute STEL | 306 mg/m³ |  |

## Sampling methods

| Method | Sampling | Medium | Analysis | Part numbers |
| --- | --- | --- | --- | --- |
| **MDHS 88** / VOCs by solvent desorption and GC-FID / [Method document (opens in a new tab)](https://www.hse.gov.uk/pubns/mdhs/pdfs/mdhs88.pdf) | Passive | Anasorb CSC (350 mg) or Anasorb® 747 (500 mg) 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)](http://www.hse.gov.uk/pubns/mdhs/pdfs/mdhs96.pdf) | Active (pump) | Charcoal tube (100/50mg) | GC-FID | [226-01](https://analyt-mtc.com/catalog/product/skc-anasorb-sorbent-tubes/) |
| **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) | Charcoal tube (100/50mg) |  | [226-01](https://analyt-mtc.com/catalog/product/skc-anasorb-sorbent-tubes/) |
| **NIOSH 1003** / Halogenated hydrocarbons by GC-FID / [Method document (opens in a new tab)](http://www.cdc.gov/niosh/docs/2003-154/pdfs/1003.pdf) | Active (pump) | Charcoal tube (100/50mg) | GC-FID | [226-01](https://analyt-mtc.com/catalog/product/skc-anasorb-sorbent-tubes/) |
| **NIOSH 2549** / VOCs (screening) by thermal desorption and GC -MS / [Method document (opens in a new tab)](http://www.cdc.gov/niosh/docs/2003-154/pdfs/2549.pdf) | Active (pump) | Thermal desorption tube |  | [226-330](https://analyt-mtc.com/catalog/product/skc-thermal-desorption-sorbent-tubes/#part-226-330) |
| **ASTM D5466** / VOCs by GC -MS / [Method document (opens in a new tab)](http://www.astm.org/Standards/D5466.htm) | Active (pump) | Canister | GC-MS |  |
| **Non-agency** / o-dichlorobenzene by colorimetric analysis | Direct-reading | Gastec Detector Tube |  | [810-127](https://analyt-mtc.com/catalog/product/gastec-colour-gas-detector-tubes/#part-gst-127) |
| **Non-agency** / VOCs by solvent extraction and GC / [Method document (opens in a new tab)](https://www.skcltd.com/images/pdfs/ULTRA_Selection_Guide_April_2017.pdf) | Passive | Anasorb CSC (500mg) passive sampler |  | [690-105](https://analyt-mtc.com/catalog/product/skc-ultra-passive-samplers/#part-690-105) |
| **Non-agency** / VOCs by thermal desorption and GC / [Method document (opens in a new tab)](https://www.skcltd.com/images/pdfs/ULTRA_Selection_Guide_April_2017.pdf) | Passive | Anasorb GBC1 (370mg) or Chromosorb 106 (285 mg) or Tenax TA (265 mg) passive sampler |  | [690-101](https://analyt-mtc.com/catalog/product/skc-ultra-passive-samplers/#part-690-101) / [690-103](https://analyt-mtc.com/catalog/product/skc-ultra-passive-samplers/#part-690-103) / [690-104](https://analyt-mtc.com/catalog/product/skc-ultra-passive-samplers/#part-690-104) |
| **Other** | Passive |  | GC-FID | [575-001](https://analyt-mtc.com/catalog/product/skc-organic-vapour-passive-samplers/#part-575-001) |
| **Other** | Passive |  | GC-FID | [575-002](https://analyt-mtc.com/catalog/product/skc-organic-vapour-passive-samplers/#part-575-002) |
| **Other** | Passive |  | TD, GC | [690-101](https://analyt-mtc.com/catalog/product/skc-ultra-passive-samplers/#part-690-101) / [690-103](https://analyt-mtc.com/catalog/product/skc-ultra-passive-samplers/#part-690-103) / [690-104](https://analyt-mtc.com/catalog/product/skc-ultra-passive-samplers/#part-690-104) |
| **Other** | Passive |  | GC-FID | [690-105](https://analyt-mtc.com/catalog/product/skc-ultra-passive-samplers/#part-690-105) |
| **Other Internal** | Passive |  | TD, GC | [690-101](https://analyt-mtc.com/catalog/product/skc-ultra-passive-samplers/#part-690-101) / [690-103](https://analyt-mtc.com/catalog/product/skc-ultra-passive-samplers/#part-690-103) / [690-104](https://analyt-mtc.com/catalog/product/skc-ultra-passive-samplers/#part-690-104) |
| **Other Internal** | Passive |  | GC-FID | [690-105](https://analyt-mtc.com/catalog/product/skc-ultra-passive-samplers/#part-690-105) |

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/)