---
title: "Tributyl phosphate (all isomers) (126-73-8) — Analyt-MTC"
url: https://analyt-mtc.com/tools/hazard-search/tributyl-phosphate-all-isomers-126-73-8/
lang: en
alternates:
  en: https://analyt-mtc.com/tools/hazard-search/tributyl-phosphate-all-isomers-126-73-8/
  de: https://analyt-mtc.com/de/tools/gefahrstoffsuche/tributyl-phosphate-all-isomers-126-73-8/
---

Hazard search

# Tributyl phosphate (all isomers)

CAS number

126-73-8

Also known as

TBP · Tri-n-butyl phosphate · Tributyl phosphate

## UK workplace exposure limits

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

## Sampling methods

| Method | Sampling | Medium | Analysis | Part numbers |
| --- | --- | --- | --- | --- |
| **NIOSH 5034** / Tributyl phosphate by GC-FPD / [Method document (opens in a new tab)](http://www.cdc.gov/niosh/docs/2003-154/pdfs/5034.pdf) | Active (pump) | 0.8µm MCE filter (use two cassettes in series if temp >23°C) | GC-FPD | [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) |

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/)