# The Trade Effluent (Asbestos) (Scotland) Regulations 1993, Paragraph 1


The reference method of analysis to determine total suspended matter (filterable matter from the non precipitated sample) as expressed in mg/l shall be filtering through a 0.45 μM filter membrane, drying at 105°C and weighing.

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Source: https://www.legislation.gov.uk/uksi/1993/1446/schedule/paragraph/1 (the official version)
Page: https://openlegislation.uk/trade-effluent-asbestos-scotland-regulations-1993/schedule/paragraph-1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.