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these wooden frames are strong
Extra Notes pages
Pack size: 250 sheets
Strong links with QCA and the Scottish Guidelines provide you with valuable cross-curricular links
who are looking for effective ways to engage with them
Hanna Hi-98127 Pocket Water-Resistant Ph Tester 51545 these wooden frames are strongWater resistant, accurate and portable, this handy little pocket meter is a 'go anywhere' pH tester, with a replaceable electrode. Also designed to float if accidentally dropped into water. Dual LCD showing pH and temperature readings simultaneously. The exposed temperature sensor provides fast response time. For convenience the pH readings can be held on the LCD using the HOLD button and the meter will automatically switch itself off to preserve