Warning

Several readers are involved in materials growth techniques involving the use of phosphorous. The dangers associated with using this material are well known and safety precautions usually taken. Unfortunately, as reported by KTVU, last week's accident at Agilent Technologies in California is a reminder to us all of the potential risks involved. Over 100 staff were evacuated, 3 hurt and one person critically injured following an explosion whilst a maintenance team were cleaning an MBE machine that contained phosphorus. A regrettable but timely reminder to all of us to revisit and review our safety precautions and disaster planning procedures.