CSA A370-14:2018 pdf download.Connectors for masonry
1.3 CSA A370-14 recognizes two types of masonry connectors:
a) connectors, including repair connectors, designed in accordance with the performance requirements of this Standard; and
b) prescriptive connectors, which offer a simple prescriptive solution (or deemed-to-comply solution) to the performance requirements of this Standard when complying with the stated limiting conditions for use.
1.4 In this Standard, "shall" is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the standard;“should" is used to express a recommendation or that which is advised but not required; and "may" is used to express an option or that which is permissible within the limits of the standard.
Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material.
4.2.4.1 Labelling
The following information shall appear on a label securely affixed to each carton, cube, or package:
a) the trade name and address of the manufacturer;
b) the description or name of the item;
c) the corrosion protection level described in Clause 5.2 except as permitted by Clause 4.2.4.2.1; and
d) the intended application of the item.
Note: The carton, cube, or package may also be colour coded to indicate the level of corrosion protection in accordance with the requirements for colour in Clause 4.2.4.2.2.
4.2.4.2 Colour coding for corrosion protection
4.2.4.2.1 When the level of corrosion protection of a tie cannot be labelled or colour coded on its carton, cube,or package, the tie shall be colour coded to indicate the level of corrosion protection.
Note: See Clause 5.2 for a description of the corrosion protection levels.
5.1 Effective life
Masonry connectors shall have sufficient protection against corrosion to enable them to maintain their strength, stiffness, and anchorage and to function effectively for the intended design service life.
Note: Shelf angles for masonry are not classified as masonry connectors by this Standard. CSA S304 contains requirements pertaining to corrosion protection for shelf angles, plates, and lintels.
5.2.2 Level 1 corrosion protection
Connectors used in environments requiring Level 1 corrosion protection may be fabricated from unprotected carbon steel or steel whose zinc coating does not meet the minimum requirements of Table 5.2. The coating should not contain aluminum.
5.2.4 Level 3 corrosion protection
Connectors used in environments requiring Level 3 corrosion protection shall be fabricated from stainless steel meeting the requirements of Clause 4.1.
Other materials may be used, provided that they have equivalent corrosion protection.
Note: Some Level 3 materials can be corroded by substances such as acids and chlorides.CSA A370-14 pdf download.