{"id":340172,"date":"2024-10-19T23:49:45","date_gmt":"2024-10-19T23:49:45","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-iso-119902003\/"},"modified":"2024-10-25T22:59:03","modified_gmt":"2024-10-25T22:59:03","slug":"bs-en-iso-119902003","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-iso-119902003\/","title":{"rendered":"BS EN ISO 11990:2003"},"content":{"rendered":"
PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
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5<\/td>\n | TitlePage – Optics and optical instruments\ufffd\u2014 Lasers and laser-related equipment\ufffd\u2014 Determination o… <\/td>\n<\/tr>\n | ||||||
7<\/td>\n | TableofContent – Contents Page <\/td>\n<\/tr>\n | ||||||
8<\/td>\n | Foreword – Foreword <\/td>\n<\/tr>\n | ||||||
9<\/td>\n | Introduction – Introduction <\/td>\n<\/tr>\n | ||||||
11<\/td>\n | Scope – 1\ufffd\ufffd\ufffd Scope NormativeReference – 2\ufffd\ufffd\ufffd Normative references <\/td>\n<\/tr>\n | ||||||
12<\/td>\n | Clause1 – 4\ufffd\ufffd\ufffd Principle Clause1 – 5\ufffd\ufffd\ufffd Significance and use of the test UntitledSubclause2 – 5.1\ufffd\ufffd\ufffd This document UntitledSubclause2 – 5.2\ufffd\ufffd\ufffd A large number and range of variables are involved in laser ignition … UntitledSubclause2 – 5.3\ufffd\ufffd\ufffd Since it is conceivable that an oxygen-enriched atmosphere may be enc… UntitledSubclause2 – 5.4\ufffd\ufffd\ufffd A flowrate of UntitledSubclause2 – 5.5\ufffd\ufffd\ufffd Opportunities for development: variations of this method can be appli… <\/td>\n<\/tr>\n | ||||||
13<\/td>\n | Clause1 – 6\ufffd\ufffd\ufffd Apparatus Subclause2 – 6.1\ufffd\ufffd\ufffd Gas supply system UntitledSubclause3 – 6.1.1\ufffd\ufffd\ufffd The gas supply system shall provide oxygen to the tracheal tube at … UntitledSubclause3 – 6.1.2\ufffd\ufffd\ufffd Other arrangements, such as an oxygen flood valve for rapidly purgi… Subclause2 – 6.2\ufffd\ufffd\ufffd Containment box UntitledSubclause3 – 6.2.1\ufffd\ufffd\ufffd The containment box is a means to control the environment around th… UntitledSubclause3 – 6.2.2\ufffd\ufffd\ufffd The typical containment box shall have the following characteristics: UntitledSubclause3 – 6.2.3\ufffd\ufffd\ufffd Other configurations may be used, as long as the requirements of th… Subclause2 – 6.3\ufffd\ufffd\ufffd Smoke evacuation UntitledSubclause3 – 6.3.1\ufffd\ufffd\ufffd A device to safely remove smoke resulting from any burning tube sho… UntitledSubclause3 – 6.3.2\ufffd\ufffd\ufffd The smoke evacuation device shall not interfere with maintaining th… <\/td>\n<\/tr>\n | ||||||
14<\/td>\n | Subclause2 – 6.4\ufffd\ufffd\ufffd Lasers and delivery systems UntitledSubclause3 – 6.4.1\ufffd\ufffd\ufffd Various laser types emitting radiation of wavelengths in the visibl… UntitledSubclause3 – 6.4.2\ufffd\ufffd\ufffd The laser radiation shall be applied using the specific focusing\/ha… <\/td>\n<\/tr>\n | ||||||
15<\/td>\n | UntitledSubclause3 – 6.4.3\ufffd\ufffd\ufffd Bare fibres, contact tips, contact fibres, or other devices that co… UntitledSubclause3 – 6.4.4\ufffd\ufffd\ufffd The power of radiation transmitted by these systems should be verif… Subclause2 – 6.5\ufffd\ufffd\ufffd Oxygen analyser UntitledSubclause3 – 6.5.1\ufffd\ufffd\ufffd Any device that can measure the concentration of gaseous oxygen wit… UntitledSubclause3 – 6.5.2\ufffd\ufffd\ufffd The oxygen sensor should be positioned to minimize the chance of it… <\/td>\n<\/tr>\n | ||||||
16<\/td>\n | Clause1 – 7\ufffd\ufffd\ufffd Reagents and materials UntitledSubclause2 – 7.1\ufffd\ufffd\ufffd Oxygen UntitledSubclause2 – 7.2\ufffd\ufffd\ufffd Nitrogen or other inert gas Clause1 – 8\ufffd\ufffd\ufffd Preparation of test specimen UntitledSubclause2 – 8.1\ufffd\ufffd\ufffd The test specimen shall be any material, device or system used as a t… UntitledSubclause2 – 8.2\ufffd\ufffd\ufffd Five test specimen shall be used, each with UntitledSubclause2 – 8.3\ufffd\ufffd\ufffd Each test specimen shall be prepared according to the manufacturer’s … UntitledSubclause2 – 8.4\ufffd\ufffd\ufffd The test specimen shall be free from extraneous materials such as blo… UntitledSubclause2 – 8.5\ufffd\ufffd\ufffd The test specimen and apparatus shall be equilibrated to UntitledSubclause2 – 8.6\ufffd\ufffd\ufffd The test specimen shall not be preconditioned in an oxygen-enriched a… Clause1 – 9\ufffd\ufffd\ufffd Preparation of apparatus UntitledSubclause2 – 9.1\ufffd\ufffd\ufffd Ensure that the containment box is clean (i.e. free of contaminants)…. UntitledSubclause2 – 9.2\ufffd\ufffd\ufffd Ensure that the laser is in working order, that its operation is unde… UntitledSubclause2 – 9.3\ufffd\ufffd\ufffd Ensure that there is adequate gas for the test and that means are pro… UntitledSubclause2 – 9.4\ufffd\ufffd\ufffd Have other methods of fire extinguishment, e.g. carbon dioxide fire e… Clause1 – 10\ufffd\ufffd\ufffd Test procedure UntitledSubclause2 – 10.1\ufffd\ufffd\ufffd Perform the test at UntitledSubclause2 – 10.2\ufffd\ufffd\ufffd Insert the test specimen into the containment box. Connect the gas s… UntitledSubclause2 – 10.3\ufffd\ufffd\ufffd Place the enclosure covers on the top of the containment box, as sho… <\/td>\n<\/tr>\n | ||||||
17<\/td>\n | UntitledSubclause2 – 10.4\ufffd\ufffd\ufffd Determine that the inert gas flush is working properly. UntitledSubclause2 – 10.5\ufffd\ufffd\ufffd Determine that the smoke evacuation system is working properly and w… UntitledSubclause2 – 10.6\ufffd\ufffd\ufffd Flow oxygen into the containment box at a rate and time period suffi… UntitledSubclause2 – 10.7\ufffd\ufffd\ufffd Establish an oxygen flowrate of UntitledSubclause2 – 10.8\ufffd\ufffd\ufffd Position the laser so that the laser beam is perpendicular to the su… UntitledSubclause2 – 10.9\ufffd\ufffd\ufffd Verify that the following standardised test parameters are correct d… UntitledSubclause2 – 10.10\ufffd\ufffd\ufffd Starting with a UntitledSubclause2 – 10.11\ufffd\ufffd\ufffd Increase the laser power in steps by the minimum increment availabl… <\/td>\n<\/tr>\n | ||||||
18<\/td>\n | UntitledSubclause2 – 10.12\ufffd\ufffd\ufffd Continue increasing the power until burning occurs or the test spec… Clause1 – 11\ufffd\ufffd\ufffd Interpretation of results UntitledSubclause2 – 11.1\ufffd\ufffd\ufffd Any test specimen that experiences combustion or damage, as defined in UntitledSubclause2 – 11.2\ufffd\ufffd\ufffd Any damage or blemish (see Clause1 – 12\ufffd\ufffd\ufffd Test report <\/td>\n<\/tr>\n | ||||||
20<\/td>\n | Bibliography – Bibliography <\/td>\n<\/tr>\n | ||||||
22<\/td>\n | National foreword National foreword <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Optics and optical instruments. Lasers and laser-related equipment. Determination of laser resistance of tracheal tube shafts<\/b><\/p>\n |