CSA Z259.18:2019 pdf download.Counterweighted guardrail systems
8.3.1.1 General
A static point load shall be applied to the railing in several locations. For wet conditions, apply water in the temperature range from 10 to 25 °C (50 to 77 °F) and a minimum quantity of 0.5 L/m2 (2.93 cups/yd2) onto the test surface so that the test surface is wet. Water should be applied no more than 30 min before the test.
8.3.1.2 Static horizontal test
The static horizontal test shall be conducted as follows:
a) Install the test samples as specified in Clause 8.1 and prepare a test surface as specified in Clause 8.2.2 without parapets or other supports.
b) Determine the loading point for each sample as ilustrated in Figure 2.
c) For each loading point
i) use the load values from Table 1;
ii) connect directly to the loading point with a lanyard specified in Clause 8.2.3. Adjust the length of the lanyard to ensure it is not making contact with other parts of the CGS assembly or rigid test rig;
iii) establish the datum (top of top rail) for measuring the deflection of the point being tested of the sample;
iv) using calibrated test weights, apply the load using the rigid test rig or overhead lifting devices to which a suspended pulley block is attached 2 m (6.6 ft) away from the sample. The load shall be applied gradually to the assembly to reduce any dynamic effects. Once the load is fully applied, it should be held for 3 min; and
v) measure the required deflection as listed in Table 3 or displacement as listed in Table 4 at the end of the duration, while the load is still applied, but mark the horizontal displacement at the 1 min mark if it is moving.
d) Repeat the steps in Items i) to v) until all points are done.
e) Test each sample on both wet and dry test surfaces.
The success or failure of the test shall be determined as specified in Clause 7.1.
8.3.1.3 Static vertical downward test
The static vertical downward test shall be conducted as follows:
a) Install the test samples as specified in Clauses 8.1 and prepare a test surface as specified in Clause 8.2.2 without parapets or other supports.
b) ldentify the loading points for each sample in accordance with Figure 2. If the system has a cantilevered section, add an additional loading point to the end of that section.
c) For each loading point
i) establish the datum (top of top rail) for measuring the deflection of the sample;
ii) use the load values from Table 1;
iii) using calibrated test weights, apply gradual load to the assembly to reduce any dynamic effects. Once the load is fully applied, it should be held for 3 min; and
iv) measure the vertical height at the end of the duration, while the load is still applied.
d) Repeat the steps in Items i) to iv) until all points are done.
e) Test each sample on a single dry surface.CSA Z259.18 pdf download.