About the Authors |
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xi | |
Series Foreword: Essentials of Forensic Science |
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xv | |
Foreword |
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xvii | |
Preface |
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xxi | |
About the Companion Website |
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xxv | |
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1 | (24) |
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1 | (3) |
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1.2 A brief history of tool marks |
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4 | (3) |
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1.3 General aspects of marks' comparison |
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7 | (1) |
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1.4 Training requirements for examiners |
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8 | (2) |
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1.5 Good forensic practice |
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10 | (1) |
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1.6 Examination and comparison strategy |
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11 | (2) |
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11 | (1) |
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12 | (1) |
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12 | (1) |
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12 | (1) |
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1.7 Environment and equipment |
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13 | (9) |
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13 | (1) |
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1.7.2 Examiner's `toolbox' |
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14 | (1) |
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1.7.3 Test mark and casting materials |
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14 | (3) |
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17 | (1) |
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18 | (4) |
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22 | (1) |
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23 | (2) |
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24 | (1) |
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25 | (28) |
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25 | (3) |
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28 | (1) |
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2.3 Creating a tool `blank' |
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29 | (5) |
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30 | (1) |
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2.3.2 Blanking and shearing |
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31 | (1) |
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2.3.3 Metal cutting operations |
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32 | (2) |
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34 | (11) |
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2.5 Wear, corrosion and damage |
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45 | (8) |
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51 | (2) |
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53 | (28) |
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3.1 Examining and recording the scene |
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53 | (1) |
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3.2 General preliminaries |
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54 | (2) |
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3.2.1 Verifying the circumstances |
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54 | (1) |
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3.2.2 Recording the scene |
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54 | (1) |
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3.2.3 Scene to scene linking |
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55 | (1) |
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55 | (1) |
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3.3 Forced entry marks---levering |
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56 | (7) |
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3.3.1 Recovery of levering marks |
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58 | (5) |
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3.4 Forced entry marks---other |
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63 | (4) |
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64 | (1) |
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3.4.2 Gripping tool attacks |
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65 | (1) |
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3.4.3 Motor vehicle entry |
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66 | (1) |
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67 | (5) |
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68 | (1) |
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3.5.2 Breached security systems |
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69 | (3) |
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72 | (1) |
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3.7 Examination of machines |
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73 | (1) |
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74 | (3) |
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3.9 Collecting suspect tools |
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77 | (4) |
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79 | (2) |
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4 Initial Laboratory Examination |
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81 | (34) |
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4.1 General preliminaries |
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81 | (5) |
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81 | (1) |
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4.1.2 Planning the examination |
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82 | (2) |
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4.1.3 Preparing for the examination |
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84 | (1) |
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4.1.4 Collecting the items |
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84 | (1) |
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4.1.5 Decontamination of item packaging |
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84 | (1) |
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4.1.6 Operating procedures |
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84 | (1) |
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4.1.7 Recording and opening the packaging |
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85 | (1) |
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4.1.8 Description of the item |
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86 | (1) |
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4.1.9 Examination of the item |
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86 | (1) |
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4.2 Mainly impressed marks |
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86 | (5) |
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87 | (2) |
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89 | (1) |
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89 | (1) |
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90 | (1) |
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91 | (8) |
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4.3.1 Levering marks with striations |
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92 | (1) |
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4.3.2 Cutting and stabbing marks |
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92 | (7) |
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99 | (6) |
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105 | (3) |
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108 | (3) |
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4.7 Using tool marks for intelligence purposes |
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111 | (4) |
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4.7.1 Type and size of tool |
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111 | (1) |
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4.7.2 Scene-to-scene linking without a tool |
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111 | (1) |
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4.7.3 Scene-to-scene linking using a tool recovered from a scene |
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112 | (1) |
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4.7.4 Linking suspect's tool(s) to previously unsuspected scenes |
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112 | (1) |
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4.7.5 Setting up a database |
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112 | (1) |
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113 | (2) |
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5 Detailed Laboratory Examination |
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115 | (36) |
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115 | (1) |
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5.2 Presentation of material to the comparator |
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116 | (3) |
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119 | (4) |
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5.4 Marks with striations |
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123 | (13) |
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124 | (4) |
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5.4.2 Double-bladed cutting tools |
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128 | (3) |
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5.4.3 Stab marks (in tyres and bones) |
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131 | (5) |
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136 | (3) |
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5.5.1 Initial and final cuts |
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136 | (1) |
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137 | (2) |
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139 | (8) |
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5.6.1 Alphanumeric punches |
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139 | (4) |
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143 | (1) |
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144 | (2) |
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146 | (1) |
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147 | (4) |
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5.7.1 Test marks made in situ |
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147 | (1) |
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5.7.2 Amount of detail required for comparison |
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148 | (1) |
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5.7.3 Use of a scanning electron microscope (SEM) |
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148 | (2) |
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150 | (1) |
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6 Interpretation and Evaluation |
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151 | (24) |
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151 | (6) |
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151 | (2) |
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153 | (2) |
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6.1.3 Interpretation and evaluation |
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155 | (2) |
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6.1.4 Scene-to-scene linking |
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157 | (1) |
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6.2 Considerations as the laboratory examination progresses |
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157 | (9) |
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6.2.1 Eliminations and inconclusive evidence |
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157 | (1) |
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6.2.2 Identifications and levels of support |
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158 | (8) |
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166 | (4) |
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170 | (1) |
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6.5 After the examination |
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171 | (1) |
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172 | (3) |
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173 | (2) |
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7 Manufacturing Marks: Involving Tool Mark Related Examinations |
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175 | (8) |
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175 | (1) |
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176 | (2) |
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178 | (1) |
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179 | (2) |
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181 | (2) |
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182 | (1) |
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8 Physical Fits: Involving Tool Mark Related Examinations |
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183 | (14) |
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183 | (2) |
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185 | (1) |
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8.3 Categories of physical fit and laboratory examination |
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186 | (7) |
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186 | (1) |
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8.3.1.1 Multiple broken pieces |
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187 | (1) |
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8.3.2 Physical fits requiring tool mark skills |
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188 | (2) |
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8.3.3 Physical fits requiring knowledge of manufacturing detail |
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190 | (1) |
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190 | (1) |
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191 | (1) |
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192 | (1) |
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193 | (4) |
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9 Plastic Film Examinations |
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197 | (22) |
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197 | (2) |
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9.2 The `blown film' process |
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199 | (6) |
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199 | (2) |
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9.2.2 Bag production and construction |
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201 | (1) |
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9.2.2.1 Heat sealing, perforating and cutting |
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201 | (2) |
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203 | (1) |
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203 | (1) |
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203 | (2) |
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9.3 Laboratory considerations |
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205 | (3) |
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205 | (1) |
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206 | (2) |
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9.4 Laboratory examination and evaluation |
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208 | (11) |
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209 | (1) |
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9.4.1.1 One unknown bag versus one known bag |
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209 | (2) |
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9.4.1.2 Unknown bag(s) versus a roll/set of known bags |
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211 | (2) |
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213 | (1) |
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214 | (1) |
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215 | (2) |
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217 | (2) |
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219 | (1) |
References |
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220 | (3) |
Glossary |
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223 | (14) |
Index |
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237 | |