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

LimitValueApplies to
8-hour TWA 1 mg/m³

Sampling methods

MethodSamplingMedium AnalysisPart numbers
OSHA ID-125G
Metals & metalloid particulates by ICP -AES
Method document (opens in a new tab)
Active (pump) 0.8µm MCE filter in 25mm or 37mm cassette ICP-AES 225-3-01
225-3100
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); SKC Inc. (USA), Sampling Guides, used with SKC's permission (opens in a new tab)