{"id":239349,"date":"2024-10-19T15:39:14","date_gmt":"2024-10-19T15:39:14","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-61340-4-72017\/"},"modified":"2024-10-25T10:21:23","modified_gmt":"2024-10-25T10:21:23","slug":"bs-en-61340-4-72017","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-61340-4-72017\/","title":{"rendered":"BS EN 61340-4-7:2017"},"content":{"rendered":"

This part of IEC 61340<\/span> <\/span> provides test methods and procedures for evaluating and selecting air ionization equipment and systems (ionizers).<\/p>\n

This document establishes measurement techniques, under specified conditions, to determine offset voltage (ion balance) and decay (charge neutralization) time for ionizers.<\/p>\n

This document does not include measurements of electromagnetic interference (EMI), or the use of ionizers in connection with ordnance, flammables, explosive items or electrically initiated explosive devices.<\/p>\n

As contained in this document, the test methods and test conditions can be used by manufacturers of ionizers to provide performance data describing their products. Users of ionizers are urged to modify the test methods and test conditions for their specific application in order to qualify ionizers for use, or to make periodic verifications of ionizer performance. The user will decide the extent of the data required for each application.<\/p>\n

\n
\n CAUTION:\n <\/div>\n

Procedures and equipment described in this document can expose personnel to hazardous electrical and non-electrical conditions. Users of this document are responsible for selecting equipment that complies with applicable laws, regulatory codes and both external and internal policy. Users are cautioned that this document cannot replace or supersede any requirements for personnel safety.<\/p>\n<\/div>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
2<\/td>\nNational foreword <\/td>\n<\/tr>\n
5<\/td>\nEnglish
CONTENTS <\/td>\n<\/tr>\n
7<\/td>\nFOREWORD <\/td>\n<\/tr>\n
9<\/td>\nINTRODUCTION <\/td>\n<\/tr>\n
10<\/td>\n1 Scope
2 Normative references
3 Terms and definitions <\/td>\n<\/tr>\n
12<\/td>\n4 Test fixture and instrumentation <\/td>\n<\/tr>\n
13<\/td>\nFigures
Figure 1 \u2013 Charged plate monitor components for non-contacting plate measurement
Figure 2 \u2013 Charged plate monitor components for contacting plate measurement <\/td>\n<\/tr>\n
14<\/td>\n5 Specific requirements for equipment categories
5.1 Specific requirements for all ionization equipment
Figure 3 \u2013 Conductive plate detail for the non-contacting CPM
Figure 4 \u2013 Conductive plate detail for the voltage follower CPM <\/td>\n<\/tr>\n
15<\/td>\n5.2 Room ionization
Table 1 \u2013 Test set-ups and test locations\/points (TP) <\/td>\n<\/tr>\n
16<\/td>\nFigure 5 \u2013 Test locations for room ionization \u2013 AC grids and DC bar systems
Figure 6 \u2013 Test locations for room ionization \u2013 Single polarity emitter systems <\/td>\n<\/tr>\n
17<\/td>\n5.3 Laminar flow hood ionization
Figure 7 \u2013 Test locations for room ionization \u2013 Dual DC line systems
Figure 8 \u2013 Test locations for room ionization \u2013 Pulsed DC emitter systems <\/td>\n<\/tr>\n
18<\/td>\nFigure 9 \u2013 Test locations for vertical laminar flow hood \u2013 Top view
Figure 10 \u2013 Test locations for vertical laminar flow hood \u2013 Side view <\/td>\n<\/tr>\n
19<\/td>\n5.4 Work surface ionization
Figure 11 \u2013 Test locations for horizontal laminar flow hood \u2013 Top view
Figure 12 \u2013 Test locations for horizontal laminar flow hood \u2013 Side view <\/td>\n<\/tr>\n
20<\/td>\nFigure 13 \u2013 Test locations for benchtop ionizer \u2013 Top view <\/td>\n<\/tr>\n
21<\/td>\nFigure 14 \u2013 Test locations for benchtop ionizer \u2013 Side view
Figure 15 \u2013 Test locations for overhead ionizer \u2013 Top view <\/td>\n<\/tr>\n
22<\/td>\n5.5 Compressed gas ionizers \u2013 Guns and nozzles
Figure 16 \u2013 Test locations for overhead ionizer \u2013 Side view <\/td>\n<\/tr>\n
23<\/td>\nFigure 17 \u2013 Test locations for compressed gas ionizer (gun or nozzle) \u2013 Side view <\/td>\n<\/tr>\n
24<\/td>\nAnnex A (informative) Theoretical background and additional information on the standard test method for the performance of ionizers
A.1 Introductory remarks
A.2 Air ions
A.3 Mobility and ion current
A.4 Neutralization current <\/td>\n<\/tr>\n
25<\/td>\nA.5 Neutralization rate
A.6 Ion depletion and field suppression
A.7 Charged plate monitor and charge neutralization <\/td>\n<\/tr>\n
26<\/td>\nA.8 Relationship between charged plate monitor decay time and actual object
A.9 Offset voltage
A.10 Preparation of test area <\/td>\n<\/tr>\n
27<\/td>\nA.11 Ion transport in airflow
A.12 Obstruction of airflow around the charged plate monitor
A.13 Effect of \u201cair blanket\u201d <\/td>\n<\/tr>\n
28<\/td>\nA.14 Sources of measurement error
A.14.1 Typical decay time variability
A.14.2 Plate isolation
A.14.3 Charging voltage
A.14.4 Materials near the plate
A.14.5 Other field-producing devices in test area
A.14.6 Effect of offset voltage on decay time <\/td>\n<\/tr>\n
29<\/td>\nA.15 Importance of ionization equipment maintenance <\/td>\n<\/tr>\n
30<\/td>\nAnnex B (normative) Method of measuring the capacitance of an isolated conductive plate
B.1 Method
B.2 Equipment
B.3 Procedure
B.4 Example <\/td>\n<\/tr>\n
31<\/td>\nB.5 Sources of error
B.5.1 Measuring equipment
B.5.2 Poor plate isolation
Table B.1 \u2013 Example measurement data <\/td>\n<\/tr>\n
32<\/td>\nB.5.3 Objects in the environment
B.5.4 Stray capacitance <\/td>\n<\/tr>\n
33<\/td>\nAnnex C (informative) Safety considerations
C.1 General
C.2 Electrical
C.3 Ozone
C.4 Radioactive
C.5 X-ray
C.6 Installation <\/td>\n<\/tr>\n
34<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Electrostatics – Standard test methods for specific applications. Ionization<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2017<\/td>\n36<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":239354,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2641],"product_tag":[],"class_list":{"0":"post-239349","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-bsi","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/239349","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/239354"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=239349"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=239349"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=239349"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}