DelAgua OXFAM-DELAGUA, Руководство пользователя

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OXFAM-DELAGUA Water Testing Kit — Users Manual
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CONTENTS
1 The OXFAM - DELAGUA Kit Components
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1.1 General 10
1.2 Filtration Apparatus and Components 11
1.3 Contents of the Spares Case 11
1.4 Materials Needed for Testing 12
2 Sampling Programmes 13
2.1 Selection of sites and frequency of sampling on a network supply 13
3 Preparation of the Kit 15
3.1 Sterilisation of the Filtration Apparatus 15
3.2 Preparation of Culture Medium in the Laboratory 17
3.3 Preparation of Culture Medium in the Field 19
3.4 Storage of Culture Medium 20
3.5 Sterilisation of the petri-dishes 20
3.6 Disposal of Contaminated Material 21
3.7 Absorbent Pads and Dispenser 21
3.8 Methanol Dispenser 22
4 Sampling Methods 23
4.1 Sampling from a Tap 23
4.2 Sampling from a Lake, Reservoir or other Surface Water Source 24
4.3 Sampling from an Open Well or Storage Tank 26
5 Processing of Samples using the Kit 27
5.1 Introduction 27
5.2 Analysis of Free Chlorine Residual and pH 27
5.3 Turbidity Analysis 29
5.4 Bacteriological Analysis of Water 31
6 Care and Maintenance of the Kit 45
6.1 The Battery 45
6.2 Electronic Components and the Incubator 46
6.3 Filtration Apparatus 46
6.4 Chlorine and pH Comparator and Turbidity Tubes 46
6.5 Kit Case 46
6.6 Maintenance 47
7 Evaluation and Repair of the Kit 48
7.1 Fault Finding in the Incubator, Battery and Charger 48
7.2 Fault Finding Chart 51
7.3 Checking and Recalibrating the Incubator 52