Testing. 1  All dogs should be tested annually for heartworm infection. Since not all pets receive the proper dose of preventives, the AHS recommends a more conservative testing routine than in the past. 2  Dogs should be tested for heartworm if they are going to be switched from one preventive to another. If a pet owner switches between preventives, there are specific time periods in which their pet should be retested in order to ensure the pet is protected.
Step 4: Testing for an Open Cell in a Flooded/Wet cell battery. If you have the sealed type batteries, this test method cannot be used. Use a temperature compensating battery hydrometer for this test. a.) With the hydrometer, measure and record the specific gravity of each battery cell.
Battery Capacity Tests: Perform a battery load test to see if service or replacement is necessary. Determine the load by retrieving the CCA from the battery case and reducing this number by half. The discharge rate is one half of the batteryâs cold cranking rating.Apply this load to the battery for 15 seconds.attery Capacity Tests: Perform a battery load test to see if service or replacement is necessary. Determine the load by retrieving the CCA from the battery case and reducing this number by half. The discharge rate is one half of the batteryâs cold cranking rating.