0 Ставка
Мој налог
Телефон: (011) 7541-421, 3409-301, 3409-335, 6547-293, 3409-310
E-mail: Продаја стандарда: prodaja@iss.rs Семинари, обуке: iss-edukacija@iss.rs Информације о стандардима: infocentar@iss.rs
Стевана Бракуса 2, 11030 Београд
Главни мени

ISO 21438-1:2022

Workplace atmospheres — Determination of inorganic acids by ion chromatography — Part 1: Non-volatile acids (sulfuric acid and phosphoric acid)
24. 5. 2022.

Опште информације

60.60     24. 5. 2022.

ISO

ISO/TC 146/SC 2

Међународни стандард

13.040.30  

енглески   француски  

Куповина

Објављен

Језик на коме желите да примите документ.

Апстракт

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.

Животни циклус

ПРЕТХОДНО

ПОВУЧЕН
ISO 21438-1:2007

ТРЕНУТНО

ОБЈАВЉЕН
ISO 21438-1:2022
60.60 Стандард објављен
24. 5. 2022.