ISO 334:1992
Solid mineral fuels; determination of total sulfur; Eschka method

Standard No.

ISO 334:1992

Release Date

1992

Published By

International Organization for Standardization (ISO)

Status

Withdraw

Replace By

ISO 334:2013

Latest

ISO 334:2020

Scope

The reference method specified is based on igniting a test portion (of hard coal, brown coal, lignite, or coke) in intimate contact with Eschka mixture in an oxidizing atmosphere, removal of combustible matter and conversion of the sulfur to sulfate, extraction of sulfate with hydrochloric acid solution and gravimetric determination by precipitation with barium chloride.

ISO 334:1992 history

• 2020 ISO 334:2020 Coal and coke — Determination of total sulfur — Eschka method
• 2013 ISO 334:2013 Solid mineral fuels.Determination of total sulfur.Eschka method
• 1992 ISO 334:1992 Solid mineral fuels; determination of total sulfur; Eschka method
• 1975 ISO 334:1975 Coal and coke — Determination of total sulphur — Eschka method