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Showing results 1 to 10 of 40
Explains the relative merits of three different ways of producing printed circuit boards by etching copper-clad boards.
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Brief risk assessment guidance and experimental notes for a range of practical activities involving nitric(V) acid (Hazcard 67).
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Brief risk assessment guidance and experimental notes for a range of activities involving (oxidising) ammonium salts (Hazcard 8).
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This edition includes notes on confusion over universal indicators; advice on demonstrating the thermit (thermite) reaction, issues with new laboratories, and information for teachers of D&T on pu..
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This guide gives general advice to technicians/ teachers about using haemocytometers for precise cell counts, and CLEAPSS microquadrat for counting cells and studying microhabitats.
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Using these sodium salts safely in practical work, Includes metabisulfite and the equivalent potassium salts. Sodium sulfite is also known as sodium sulfate(IV), sodium hydrogensulfite as sodium hyd..
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Guidance on how to prepare sodium hydroxide.
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Guidance on how to prepare potassium hydroxide and lithium hydroxide solutions. Also
includes guidance on the preparation of alcoholic potassium hydroxide solution
(10% w/v).
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Risk assessment guidance for nitric(V) acid (HNO3).
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Instructions on how to calibrate eyepiece aids using a DIY stage micrometer.
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Showing results 1 to 10 of 40
