Tamper-Evident Evidence Bag, 6"x9" Transparent, 100-Pack Category_Chemicals holding pH stable at 25

holding pH stable at 25 degrees C for calibrating meters and electrodes at the neutral reference point in chemistry or biochemistry labs

this 315x115mm laminated panel carries the appropriate shunt sealed in its molded box on the back of the scale

producing slow

sized to fit standard calorimeters for uniform liquid mixing during thermal experiments

microwave-safe

Tamper-Evident Evidence Bag, 6"x9" Transparent, 100-Pack Category_Chemicals holding pH stable at 25Transparent 2. 5 mil polyethylene evidence bags with fold over tamper evident closures that distort when stretched, plus unique serial numbers for chain of custody documentation.