UL SUBJECT 2885-2015 UL Outline of Investigation for Acid Gas Acidity and Conductivity of Combusted Materials and Assessment of Halogens (Issue 2)《燃烧材料的酸气 酸度以及电导率和卤素评估的UL调查大纲 (议题2).pdf
《UL SUBJECT 2885-2015 UL Outline of Investigation for Acid Gas Acidity and Conductivity of Combusted Materials and Assessment of Halogens (Issue 2)《燃烧材料的酸气 酸度以及电导率和卤素评估的UL调查大纲 (议题2).pdf》由会员分享,可在线阅读,更多相关《UL SUBJECT 2885-2015 UL Outline of Investigation for Acid Gas Acidity and Conductivity of Combusted Materials and Assessment of Halogens (Issue 2)《燃烧材料的酸气 酸度以及电导率和卤素评估的UL调查大纲 (议题2).pdf(12页珍藏版)》请在麦多课文档分享上搜索。
1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULFEBRUARY 12, 20151UL 2885Outline of Investigation for Acid Gas, Acidity and Conductivity ofCombusted Materials and Assessment of HalogensIssue Number: 2February 12, 2015Summary of TopicsThis is t
2、he second issue of the Outline of Investigation for Acid Gas,Acidity and Conductivity of Combusted Materials and Assessmentof Halogens, based on the following standards:a) IEC 60754-1, Test on gases evolved during combustion ofmaterials from cables Part 1: Determination of the halogen acidgas conten
3、t.b) The recommended performance requirements in InformativeAnnex A of IEC 60754-2, Test on gases evolved during combustionof materials from cables Part 2: Determination of acidity (by pHmeasurement) and conductivity.c) IEC 62821-1, Halogen free low smoke thermoplastic insulatedand sheathed cables o
4、f rated voltages up to and including 450/750V Part 1: general requirements, Annex B (normative),Assessment of halogens, Requirements for extruded material,Sample test.d) IEC 62821-2, Electric cables Halogen-free, low smoke,thermoplastic insulated and sheathed cables of rated voltages upto and includ
5、ing 450/750 V - Part 2: Test methods, Chemical test:Determination of halogens Elemental test.e) IEC 60684-2 Flexible insulating sleeving Part 2: Methods oftest, Determination of low levels of fluorine) Methods A (Ionselective electrode method fluoride) or B (Alizarin fluorine bluemethod.This outline
6、 is issued to document the assessment of individual materialstested to the aforementioned IEC test method standards.UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULULs Outlines of Investigation are copyrighted by UL. Neither a printed norelect
7、ronic copy of an Outline of Investigation should be altered in any way. All ofULs Outlines of Investigation and all copyrights, ownerships, and rights regardingthose Outlines of Investigation shall remain the sole and exclusive property of UL.COPYRIGHT 2015 UNDERWRITERS LABORATORIES INC.UL COPYRIGHT
8、ED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULCONTENTSINTRODUCTION1 Scope .42 Glossary .53 Units of Measurement .54 Undated References 5SAMPLES5 Specimens for Test .55.1 General .55.2 Materials evaluated to IEC 60754-1 .65.3 Materials evaluated to IEC 6
9、0754-2 .65.4 Materials evaluated to IEC 62821-1 Annex B (normative), Assessment of halogens,Requirements for extruded material, sample test .6PERFORMANCE TESTS6 Test Apparatus a) IEC 60754-1, Test on gases evolved during combustion of materials from cables Part 1:Determination of the halogen acid ga
10、s content andb) IEC 60754-2, Test on gases evolved during combustion of materials from cables Part 2:Determination of acidity (by pH measurement) and conductivity. Cable weighted pH andconductivity values are not to be used for the evaluation of test results in this outline.c) IEC 62821-1, Halogen f
11、ree low smoke thermoplastic insulated and sheathed cables of ratedvoltages up to and including 450/750 V Part 1: general requirements, Annex B (normative),Assessment of halogens, Requirements for extruded material, Sample test.1.3 The requirements may be applied to other material types if found to b
12、e appropriate.1.4 The final acceptance of materials certified to IEC 60754-1, IEC 60754-2 or IEC 62821-1 is dependentupon its use in or as a complete product that complies with the requirements in the standard applicableto such a product.1.5 Materials certified to IEC 60754-1 and IEC 60754-2 are not
13、 considered as non-halogen,non-halogenated, zero halogen, halogen-free, low halogen, low smoke zero halogen (LSZH) or any otherrelated terminology.1.6 Materials certified to the sample test requirements for extruded material in Annex B (normative),Assessment of halogens, Requirements for extruded ma
14、terial, Sample test in IEC 62821-1 are consideredhalogen-free or HF.1.7 This Outline does not investigate other properties of materials including flammability, toxicity orenvironmental risks.FEBRUARY 12, 2015UL 28854UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHO
15、UT PERMISSION FROM UL2 Glossary2.1 For the purpose of this standard, the following definitions apply.2.2 COEFFICIENT OF VARIATION (Standard Deviation / Mean) x 100.2.3 HOMOGENEOUS Uniform in composition.2.4 MATERIAL A compound, part or substance that is discretely homogeneous throughout itsentirety
16、(e.g. a polyethylene compound) or discretely used as a uniform composite or layered material(e.g. co-extruded insulation) whose compositional entities cannot be readily separated by mechanicalmeans. These compounds, parts or substances are constructed such that: Homogeneous material pieces can be cu
17、t from any portion in any fashion such that they arerepresentative of the whole and compositionally equal to pieces similarly cut from any otherportion of the part / substance. Uniform composite or layered material pieces can be cut from any portion in a specific fashion(e.g. cross section) such tha
18、t they are representative of the whole and compositionally equal topieces similarly cut from any other portion of the part / substance.3 Units of Measurement3.1 Values stated without parentheses are the requirement. Values in parentheses are explanatory orapproximate information.4 Undated References
19、4.1 Any undated reference to a code or standard appearing in the requirements of this standard shall beinterpreted as referring to the latest edition of that code or standard.SAMPLES5 Specimens for Test5.1 General5.1.1 Specimens representative of the material under evaluation are to be employed in t
20、hese tests.5.1.2 Special consideration is to be given for evaluation of multiple sample types for a given designationbecause of compositional differences due to variation in color, finish, construction and printing. Coloredspecimens shall be chosen according to the following:a) Natural and the most
21、heavily pigmented light and dark colors.b) The heaviest organic pigment loading (unless the most heavily pigmented light and darkcolors include the highest organic pigment level.)When certain color pigments are known to affect combustion product acidity characteristics, or containhalogen elements th
22、ey are also to be provided.FEBRUARY 12, 2015 UL 2885 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL5.1.3 Composite or layered (co-extruded) materials shall be evaluated such that if layer mass ratios varydisproportionally with thickness or
23、composition varies otherwise, the extreme mass ratios or compositionvariations are to be evaluated in the investigation.5.2 Materials evaluated to IEC 60754-15.2.1 A minimum of 20 grams of each material under evaluation is needed for use in this test program.5.3 Materials evaluated to IEC 60754-25.3
24、.1 A minimum of 60 grams of each material under evaluation is needed for use in this test program.5.4 Materials evaluated to IEC 62821-1 Annex B (normative), Assessment of halogens,Requirements for extruded material, sample test5.4.1 A minimum of 100 grams of each material under evaluation is needed
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