---
title: "Yttrium (7440-65-5): exposure limits and sampling"
url: https://analyt-mtc.com/tools/hazard-search/yttrium-7440-65-5/
lang: en
alternates:
  en: https://analyt-mtc.com/tools/hazard-search/yttrium-7440-65-5/
  de: https://analyt-mtc.com/de/tools/gefahrstoffsuche/yttrium-7440-65-5/
---

Hazard search

# Yttrium

CAS number

7440-65-5

Also known as

Y · Yttrium (Elements by Cellulosic Internal Capsule Sampler) · Yttrium (Elements by ICP Aqua Regia Ashing) · Yttrium (Elements by ICP HNO3 Digestion) · Yttrium (Elements by ICP HNO3/HClO4 Ashing) · Yttrium (Elements on Wipes)

## UK workplace exposure limits

| Limit | Value | Applies to |
| --- | --- | --- |
| 8-hour TWA | 1 mg/m³ |  |
| 15-minute STEL | 3 mg/m³ |  |

## Sampling methods

| Method | Sampling | Medium | Analysis | Part numbers |
| --- | --- | --- | --- | --- |
| **MDHS 91/2** / Metals & metalloids by XRF (non quantitative) / [Method document (opens in a new tab)](https://www.hse.gov.uk/pubns/mdhs/pdfs/mdhs91-2.pdf) | Active (pump) | IOM with 0.8µm MCE filter | XRF | [225-70A](https://analyt-mtc.com/catalog/product/haz-dust-7204-particulate-monitor/#part-225-70a) / [225-1930](https://analyt-mtc.com/catalog/product/mixed-cellulose-ester-membrane-filters/#part-225-1930) |
| **NIOSH 7300** / Elements by ICP (Nitric/perchloric acid ashing) / [Method document (opens in a new tab)](http://www.cdc.gov/niosh/docs/2003-154/pdfs/7300.pdf) | Active (pump) | 0.8µm MCE filter in 37mm cassette | ICP-AES | [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 7301** / Elements by ICP (Aqua regia ashing) / [Method document (opens in a new tab)](http://www.cdc.gov/niosh/docs/2003-154/pdfs/7301.pdf) | Active (pump) | 0.8µm MCE filter or 5µm PVC filter in 37mm cassette | ICP-AES | [225-3-01](https://analyt-mtc.com/catalog/product/mixed-cellulose-ester-membrane-filters/#part-225-3-01) / [225-803](https://analyt-mtc.com/catalog/product/gla-5000-pvc-membrane-filters/#part-225-803) / [225-1](https://analyt-mtc.com/catalog/product/aluminium-respirable-dust-cyclone/#part-225-1) |
| **NIOSH 7303** / Elements by ICP (Hot block/HCl/HNO3 Digestion) / [Method document (opens in a new tab)](http://www.cdc.gov/niosh/docs/2003-154/pdfs/7303.pdf) | Active (pump) | 0.8µm MCE filter in 37mm cassette | ICP-AES | [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 7306** / Elements by Cellulosic Internal Capsule Sampler ICP -AES / [Method document (opens in a new tab)](https://www.cdc.gov/niosh/docs/2014-151/pdfs/methods/7306.pdf) | Active (pump) | Solu-CAP MCE Filters Preloaded in Cassettes and Cassette Holder | ICP-AES | [225-8517](https://analyt-mtc.com/catalog/product/cassette-inserts/#part-225-8517) / [225-1](https://analyt-mtc.com/catalog/product/aluminium-respirable-dust-cyclone/#part-225-1) |
| **NIOSH 9102** / Elements on wipes by ICP -AES / [Method document (opens in a new tab)](http://www.cdc.gov/niosh/docs/2003-154/pdfs/9102.pdf) | Surface | Wipe | ICP-AES | [225-2414](https://analyt-mtc.com/catalog/product/ghost-wipes/#part-225-2414) / [225-2415](https://analyt-mtc.com/catalog/product/ghost-wipes/#part-225-2415) |
| **OSHA ID 121** | Active (pump) |  | AA or AES | [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 ID-121** / Metal & metalloid particulates by AAS / [Method document (opens in a new tab)](https://www.osha.gov/sites/default/files/methods/osha-id121.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) |
| **BS ISO 15202-1: 2020** / Determination of metals and metalloids in airborne particulate matter by ICP / [Method document (opens in a new tab)](https://shop.bsigroup.com/ProductDetail?pid=000000000030383009) | Active (pump) | IOM with 0.8µm MCE filter |  | [225-70A](https://analyt-mtc.com/catalog/product/haz-dust-7204-particulate-monitor/#part-225-70a) / [225-1930](https://analyt-mtc.com/catalog/product/mixed-cellulose-ester-membrane-filters/#part-225-1930) |

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/)