Your cart is currently empty!
“ISO 23320:2022 Workplace air – Gases and vapours – Requirements for evaluation of measuring procedures using diffusive samplers” has been added to your cart. View cart
ISO 21438:2022
ISO 21438:2022 Workplace atmospheres – Determination of inorganic acids by ion chromatography – Part 1: Non-volatile acids (sulfuric acid and phosphoric acid)
CDN $233.00
Description
This document specifies a method for the determination of the time-weighted average mass concentration of sulfuric acid and phosphoric acid in workplace air by ion chromatography. The anions are detected by conductivity.
The method is applicable to the personal sampling of airborne particles, as defined in ISO 7708, and to static (area) sampling.
The method does not apply to the determination of sulfur trioxide.
The procedure does not differentiate between the acids and their corresponding salts if both are present in the workplace air.
The procedure does not differentiate between phosphoric acid and diphosphorus pentoxide (phosphoric anhydride) if both are present in the workplace air.
Edition
2
Published Date
2022-05-24
Status
PUBLISHED
Pages
22
Language
English
Format
Secure PDF
Secure – PDF details
- Save your file locally or view it via a web viewer
- Viewing permissions are restricted exclusively to the purchaser
- Device limits - 3
- Printing – Enabled only to print (1) copy
See more about our Environmental Commitment
Abstract
This document specifies a method for the determination of the time-weighted average mass concentration of sulfuric acid and phosphoric acid in workplace air by ion chromatography. The anions are detected by conductivity.
The method is applicable to the personal sampling of airborne particles, as defined in ISO 7708, and to static (area) sampling.
The method does not apply to the determination of sulfur trioxide.
The procedure does not differentiate between the acids and their corresponding salts if both are present in the workplace air.
The procedure does not differentiate between phosphoric acid and diphosphorus pentoxide (phosphoric anhydride) if both are present in the workplace air.
Previous Editions
Can’t find what you are looking for?
Please contact us at:
Related Documents
-
ISO 21832:2018 Workplace air – Metals and metalloids in airborne particles – Requirements for evaluation of measuring procedures
CDN $312.00 Add to cart -
ISO 17735:2019 Workplace atmospheres – Determination of total isocyanate groups in air using 1-(9-anthracenylmethyl)piperazine (MAP) reagent and liquid chromatography
CDN $273.00 Add to cart -
ISO 21623:2017 Workplace exposure – Assessment of dermal exposure to nano-objects and their aggregates and agglomerates (NOAA)
CDN $273.00 Add to cart -
ISO 23875:2021 Mining – Air quality control systems for operator enclosures – Performance requirements and test methods
CDN $233.00 Add to cart
