Workplace atmospheres. Determination of inorganic acids by ion chromatography - Hydrofluoric acid and particulate fluorides1 Scope This part of ISO 21438 specifies a method for the determination of the time weighted average mass concentration of soluble particulate fluorides and hydrofluoric acid (HF) in workplace air by collection of the particulate fluorides on a pre filter and HF on an alkali impregnated filter and analysis by ion chromatography. The method is only applicable to determination of particulate fluorides that are soluble using the sample preparation

applicable to both machine control and output control systems

Test and Certification authorities

Eurocode 2: Design of concrete structures – Part 3: Liquid retaining or containing structures

for the assessment and certification/registration of supplier quality systems in accordance with the requirements of this document

The requirements take into account the differing test conditions necessary to encompass the range of physical sizes and power ratings of STS

a standard method for testing the reliability and abuse requirements of lithium-ion batteries is indispensable for securing a basic level of safety and obtaining essential data for the design of vehicle systems and battery packs

Note: The method allows measurements to be made on small specimens

Tolerances on form

Table 1 — Exhaust gas matrix

The management of the availability of ESI over time

this subject being included in BS 4447

The fifth test method (E) is applicable in all the CEN members in accordance with the requirement of each member state