BS ISO 1762:2019 pdf free.Paper, board, pulps and cellulose nanomaterials - Determination of residue (ash content) on ignition at 525 °C. 4 Principle The test specimen is weighed in a heat-resistant crucible and ignited in a muffle furnace at 525 °C+ 25 °C. The moisture or dry matter content of a separate test specimen is also measured. The percentage ash...
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