The following video presentation of snowpack tests from Bruce Jamieson and Mike Conlan from the Applied Snow and Avalanche Research Center at the University of Calgary in Alberta offers a lot of information, including tests ranging from simple hand shears to full propagation tests and large Rutschblock tests.
Remember, snowpack tests are an important part of your bag of tricks, but they should not be the only tool you are using to determine slope stability and avalanche hazard.
Common Snowpack Tests
A brief how-to for common snowpack tests to locate and assess instabilities within the snowpack, presented by Mike Conlan. Start times of tests in this video are as follows:
1:32 Compression Test
5:06 Deep Tap Test
7:28 Extended Column Test
10:54 Rutschblock Test
14:48 Propagation Saw Test
18:48 Shovel Shear Test
20:49 Hand Shear Test
22:11 Concluding remarks on initiation, propagation, and limitations.