---
title: "Dioctyl phthalate (117-81-7): exposure limits and sampling"
url: https://analyt-mtc.com/tools/hazard-search/dioctyl-phthalate-117-81-7/
lang: en
alternates:
  en: https://analyt-mtc.com/tools/hazard-search/dioctyl-phthalate-117-81-7/
  de: https://analyt-mtc.com/de/tools/gefahrstoffsuche/dioctyl-phthalate-117-81-7/
---

Hazard search

# Dioctyl phthalate

CAS number

117-81-7

Also known as

Bis-(2-ethylhexyl)phthalate · bis-2-Ethylhexyl phthalate (dioctyl phthalate) · DEHP · DEHP (di-2-ethylhexyl phthalate) · Di(2-ethylhexyl) phthalate · di-2-Ethylhexyl phthalate (DEHP) · Di-n-octyl phthalate · Di-sec-octyl phthalate (see di-\[2-ethylhexy\] phthalate) · Dicapryl phthalate

## UK workplace exposure limits

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

## Sampling methods

| Method | Sampling | Medium | Analysis | Part numbers |
| --- | --- | --- | --- | --- |
| **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 JXC tube (630/315mg) | GC-FID | 226-36 |
| **NIOSH 5020** | Active (pump) |  | GC-FID | [225-3-01](https://analyt-mtc.com/catalog/product/mixed-cellulose-ester-membrane-filters/#part-225-3-01) / [225-1](https://analyt-mtc.com/catalog/product/aluminium-respirable-dust-cyclone/#part-225-1) |
| **NIOSH 5020HEX** / Di(2-ethylhexyl) phthalate by GC-FID / [Method document (opens in a new tab)](http://www.cdc.gov/niosh/docs/2003-154/pdfs/5020HEX.pdf) | Active (pump) | 0.8µm MCE filter in cassette |  | [225-3-01](https://analyt-mtc.com/catalog/product/mixed-cellulose-ester-membrane-filters/#part-225-3-01) / [225-1](https://analyt-mtc.com/catalog/product/aluminium-respirable-dust-cyclone/#part-225-1) |
| **OSHA 104** / DMP, DEP, DBP, DEHP & DNOP by GC-FID / [Method document (opens in a new tab)](https://www.osha.gov/sites/default/files/methods/osha-104.pdf) | Active (pump) | OVS-Tenax tube (140/70mg) | GC-FID | [226-56](https://analyt-mtc.com/catalog/product/skc-osha-versatile-sampler-ovs-tubes/#part-226-56) |
| **Non-agency** / VOCs by solvent desorption and GC-FID / [Method document (opens in a new tab)](https://www.skcltd.com/images/pdfs/VOC_Chek_575_Series-Selection_Guide.pdf) | Passive | Passive sampler |  | [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** |  |  |  |  |

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/)