Carbonaceous materials for the production of aluminium. Petroleum coke. Determination of trace metals by inductively coupled plasma atomic emission spectrometry1 Scope This International Standard applies to carbonaceous materials for the production of aluminium. This International Standard describes a test method which covers the analysis for commonly determined trace metals in test specimens of raw and calcined petroleum coke by inductively coupled plasma atomic emission spectroscopy. It can also be applied to other heat treated carbonaceous materials e. g. coal tar pitch coke, anthracite. Elements to which

preliminary tests

parameters of test

adjustment of atomic absorption spectrophotometer

either directly or over an interlayer

operating either under no-load or under quasi-static conditions

In Clause 7 (former Clause 6)

The sound attenuation performance is determined in terms of insertion loss

are not the focus of this standard but such secondary uses could also find the standard useful

These devices are intended for the humidification of respired gases for tracheostomized patients having a tidal volume of 250 ml or greater

the word "roving" is used throughout the text and is taken to include yarns

BS EN 61000-6-1 is intended for use by all manufacturers

Craftsperson who works with hazardous chemicals