---
title: "Sodium tetraborate (anhydrous) (1330-43-4): sampling methods"
url: https://analyt-mtc.com/tools/hazard-search/sodium-tetraborate-anhydrous-1330-43-4/
lang: en
alternates:
  en: https://analyt-mtc.com/tools/hazard-search/sodium-tetraborate-anhydrous-1330-43-4/
  de: https://analyt-mtc.com/de/tools/gefahrstoffsuche/sodium-tetraborate-anhydrous-1330-43-4/
---

Hazard search

# Sodium tetraborate (anhydrous)

CAS number

1330-43-4

Also known as

Borates tetrasodium salts · Borax · Boron sodium oxide · Disodium tetraborate · Disodium tetraborate (anhydrous) · Sodium borate

## UK workplace exposure limits

| Limit | Value | Applies to |
| --- | --- | --- |
| 8-hour TWA | 1 mg/m³ |  |

## Sampling methods

| Method | Sampling | Medium | Analysis | Part numbers |
| --- | --- | --- | --- | --- |
| **OSHA ID-125G** / Metals & metalloid particulates by ICP -AES / [Method document (opens in a new tab)](https://www.osha.gov/sites/default/files/methods/id125g.pdf) | Active (pump) | 0.8µm MCE filter in 25mm or 37mm cassette | ICP-AES | [225-3-01](https://analyt-mtc.com/catalog/product/mixed-cellulose-ester-membrane-filters/#part-225-3-01) / [225-3100](https://analyt-mtc.com/catalog/product/mixed-cellulose-ester-membrane-filters/#part-225-3100) / [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/)