Standard for Cellulose Fibre Insulation for Buildings
Scope:
This Standard specifies requirements for treated wood-based cellulose fibre intended for use as thermal insulation (Cellulose Fibre Insulation, CFI) in new and existing buildings within the temperature range of -60 °C to 90 °C.
This Standard describes general requirements for the material (See TABLE 1) and additional requirements specific to the types of CFI (See TABLE 2). The types are specified as Type 1 and Type 2.
This document does not purport to address all the health and safety aspects associated with its use. Anyone using this Standard has the responsibility to consult the appropriate authorities and to establish appropriate health and safety practices in conjunction with any existing applicable regulatory requirements prior to its use.
The methods used in this Standard to measure and describe the properties of materials, products or assemblies in response to heat and flame under controlled laboratory conditions do not describe or appraise the fire hazard or fire risk of materials and products under actual fire conditions. Results of these tests are meant to be used as elements in a fire risk assessment that takes into account all of the factors
that are pertinent to an assessment of the fire hazard of a particular end use.
Project need:
This is a ballot for a new edition of CAN/ULC 703. This standard was revised the last time in 2009 and has been re-approved since. In this ballot, there are numerous technical and editorial changes.
Editorial changes include:
•Modifications required by the ULSE Style Manual.
•Moving the tables and figures at the location where they are first referenced in the text and re-numbering them to the clause number.
•Removal of dates in referenced standards.
•Formatting of section and chapter headings.
Technical changes include:
•Revision of the definition for cellulose fibre insulation.
•Addition of a definition for “fibre” as requested by the committee.
•Clarification of intended uses for Type 1 in the Classification section.
•The moisture vapour sorption test is replaced with a reference to ASTM C739.
•The open flammability test (critical radiant flux) is replaced with a reference to ASTM C1485. Some specific test conditions that are unique to S703 are maintained in this version to ensure continuity and consistency. Because ASTM C1485 does not contain a report section, this draft retains a report section.
•The smoulder resistance test clarifies conditions that require a new specimen to be prepared (mandatory language).
•The statement favouring C177 in case of dispute is removed. When C518 was first created, there was some skepticism about the accuracy of the method compared to a direct measurement in C177. Decades later, that concern is largely a non-issue. C518 has been accepted to be as accurate as C177.
•Reporting and Labelling sections are updated to remove references to “sub-type” to be consistent with the Classification section.
•Annex A is extensively re-written.
Note: The information provided above was obtained by the Standards Council of Canada (SCC) and is provided as part of a centralized, transparent notification system for new standards development. The system allows SCC-accredited Standards Development Organizations (SDOs), and members of the public, to be informed of new work in Canadian standards development, and allows SCC-accredited SDOs to identify and resolve potential duplication of standards and effort.
Individual SDOs are responsible for the content and accuracy of the information presented here. The text is presented in the language in which it was provided to SCC.