TS ISO 78-2

TS ISO 78-2 addresses the layout and wording used in standards that describe methods of chemical analysis. Rather than defining a single analytical technique, it provides a structured way to present such methods so that they read consistently across technical documents and are easier to apply in practice.

How chemical analysis methods are presented

According to the title and scope, this part sets out a number of principles for writing and arranging the text of chemical analysis methods in standards. The emphasis is on the organisation of the method description: how the procedure is introduced, how terms are used, and how the information is sequenced. In standardised test documentation, that editorial structure matters because it helps users compare methods, follow them in the intended order, and interpret them in a consistent way.

In general technical terms, chemical analysis methods are procedures used to determine composition, purity, concentration, or other specified chemical properties of a material. Clear standard wording is important for items such as the measurement principle, sample preparation, reagents, calculations, and reporting of results. This standard supports that clarity by promoting a common documentary style for methods published in standards.

• Provides principles for the wording and arrangement of chemical analysis methods in standards.
• Supports more consistent presentation of internationally standardised method texts.
• May also be useful for other types of test methods.