diff --git a/test/com/globo/player/metrics/PingEventDispatcherTest.as b/test/com/globo/player/metrics/PingEventDispatcherTest.as
index 9f65277..fa84c62 100644
--- a/test/com/globo/player/metrics/PingEventDispatcherTest.as
+++ b/test/com/globo/player/metrics/PingEventDispatcherTest.as
@@ -88,13 +88,20 @@ package com.globo.player.metrics {
     [Test(async, timeout="1000")]
     public function sessionTimeShouldIncreaseAccordingToTimeInterval():void {
       var timeInterval:Number = 200;
-      var THRESHOLD:Number = timeInterval * 0.4;
+      var THRESHOLD:Number = timeInterval * 0.2;
       var timer:Timer = new Timer(timeInterval * 2 + THRESHOLD);

       var check:Function = function(event:TimerEvent, ... args):void {
-               Assert.assertEquals(2, eventsParams.length);
-           var diff:Number = eventsParams[1].totalSessionTime - eventsParams[0].totalSessionTime;
-        Assert.assertTrue(Math.abs(diff - timeInterval) < 10, "" + diff + " should be close to " + timeInterval);
+            Assert.assertEquals(2, eventsParams.length);
+
+            firstPing = eventsParams[0];
+            secondPing = eventsParams[1];
+
+           var pingDeltaTime:Number = secondPing.totalSessionTime - firstPing.totalSessionTime;
+
+             errorMessage = pingDeltaTime + " should be close to " + timeInterval;
+
+            Assert.assertTrue(pingDeltaTime < timeInterval + THRESHOLD || pingDeltaTime > timeInterval - THRESHOLD, errorMessage);
       };
       MainBus.addEventListener(PingEvent.PING, incrementEventsDispatched);