CSA Preface
This is the second edition of CSA ISO 16993, Solid biofuels — Conversion of analytical results from one basis to another, which is an adoption without modification of the identically titled ISO (International Organization for Standardization) Standard 16993 (second edition, 2016-07-01). It supersedes the previous edition, published in 2015 as CAN/CSA-ISO 16993 (adopted ISO 16993:2015).
For brevity, this Standard will be referred to as “CSA ISO 16993” throughout.
This Standard is one of many Standards developed by ISO/TC 238 on Solid Biofuels that are beingadopted by CSA Group. In the ISO Standards covering the analysis of solid biofuels, it is generally specified that the determination is intended to be carried out on the air-dried or in air-equilibrated general analysis test sample prepared according to ISO 14780. However, in making use of these analyses, it is necessary to express the results on dry basis and sometimes, also on some other basis. The bases in common use for solid biofuels are “air-dried” (sometimes stated as “as determined”), “as received” (sometimes stated “as sampled” or “as delivered”), “dry”, and “dry, ash free”.
This Standard gives formulae, which allow analytical data relating to solid biofuels to be expressed on the different bases in common use. Consideration is given to corrections that can be applied to certain determined values for solid biofuels prior to their calculation to other bases.
This Standard was reviewed for Canadian adoption by the CSA Technical Committee on Solid Biofuels, under the jurisdiction of the CSA Strategic Steering Committee on Fuels and Appliances, and has been formally approved by the Technical Committee.
This Standard has been developed in compliance with Standards Council of Canada requirements for National Standards of Canada. It has been published as a National Standard of Canada by CSA Group.
Scope
This International Standard gives formulae which allow analytical data relating to solid biofuels to be expressed on the different bases in common use. Consideration is given to corrections that can be applied to certain determined values for solid biofuels prior to their calculation to other bases.
In Annex A, tools for integrity checks of analytical results are given. In Annex B, conversion factors for calculation into other units are given. Annex C is a guideline for the use of validation parameters as can be found in ISO/TC 238 analytical standards.