Showing posts with label Water Separability. Show all posts
Showing posts with label Water Separability. Show all posts

Thursday, June 2, 2011

Water Separability Paddle Cleanliness

With all the concern for cleanliness of the glassware for this ASTM D1401 test, it was recently discovered that the paddle itself may cause cleanliness problems. Most paddles are soldered to the shaft. It is unclear how to thoroughly clean soldered edges. To eliminate any possibility of impurities, the paddle and shaft should be one piece of metal. Lawler supplies a one piece paddleand shaft to address this concern. Learn more about out D1401 Water Separability bath here: http://www.LawlerCorp.com/d1401.html

Tuesday, May 31, 2011

Water Separability Testing Advice

Extreme care should be taken to use very clean, unscratched, un-etched glassware in this test method. Carefully examine the cylinder. Discard it if any sign of residue, etching or scratching is noted. Before using, the glassware should be checked for cleanliness by adding reagent water to the cylinder and inverting it to drain. If the water is drained by a smooth sheeting action and leaves behind no droplets, the glassware is clean for use.

Please visit the Lawler page for our Model 305 Water Separabilty Apparatus: http://www.LawlerCorp.com/d1401.html