BS ISO 334:2020 pdf free.Coal and coke一Determination of total sulfur- Eschka method. BS ISO 334 Cover the bottom of the crucible (6.4) uniformly with 0,5 g of the Eschka mixture (5.1), weighed to the nearest 0,1 mg. Mix the test portion intimately with 2,5 g of the Eschka mixture, weighed to the nearest 0,1 mg, in a suitable vessel. Transfer...