CSA Z5100-17:2018 pdf download.Cellulose nanomaterials一Test methods for characterization
4.1 User responsibility
It is not the intent of this Standard to address safety and regulatory issues associated with its use. It is the responsibility of the user of this Standard to train personnel, establish proper health and safety procedures, and be aware of, and comply with, local, provincial/territorial, and national regulations that apply. This includes wearing all necessary personal protection equipment and using appropriate safety equipment through all stages of each procedure, and ensuring that safety data sheets and appropriate spill kits are available for all chemicals used.
4.3 Optional information to report
Optional information recommended for test reports is as follows:
a) under "name of test facility":
Note: Supporting evidence is recommended as to the technical competence of the test facility to carry out the specified test method, e.g, an active quality management system, verification of measurement capabilities (external accreditation or peer assessment), participation in proficiency testing, or round-robin measurement comparisons. Adherence to the“OECD Principles of Good Laboratory Practice" (GLP) is recommended as well.
b) under "description of material tested":
i) cellulose source;
ii) extraction/ production method and/or producer company;
iii) moisture or solids content;
iv) storage conditions prior to testing; and
v) any other data or properties relevant to the test being performed, e.g. counterion or pH,colour.
c) under "name of test conducted":
i) specific instrument(s) and data acquisition software used and parameter(s) and protocol(s) and analysis software used which are specific to each instrument;
ii) sample preparation method;
iii) if not specified by the test method, conditions at which tests were performed (temperature,relative humidity), particularly if different from standard laboratory conditions; and
iv) any other deviations from the described test method.
5.1.1.1 Scope
These tests establish methods for determining the five principal monosaccharides from which cellulose nanomaterials are produced and which define the carbohydrate composition of wood and wood pulp.The constituents determined quantitatively and on an absolute basis are glucan, mannan, arabinan,xylan, and galactan. Gas-liquid chromatography (GLC) and high-performance anion-exchange chromatography (AEC) are used to separate the monosaccharide constituents which have been obtained by acid hydrolysis of the CNC, CNF, and CMF samples.
The test methods are taken from TAPPI T 249 cm (GLC method) and Sullivan and Douek (1994) (AEC Method). It has been found that the AEC method is more sensitive, precise, and reliable.
5.1.1.2 Significance
The presence of carbohydrates other than cellulose (e.g., hemicelluloses) in CNMs is of importance to establish their purity for materials specifications, grade determination, quality control purposes, and property measurement. The presence of hemicelluloses can also affect the performance of the CNMs in the intended application.CSA Z5100-17 pdf download.