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维基百科,自由的百科全书 UL94 是一個由 美國 Underwriters Laboratories公司 發佈的 塑膠 可燃性 標準 。� UL94 V0、V1、V2、5V:垂直燃烧 UL94 V0评定方法:从点燃后把火焰移开后样品能快速自熄到在10s之内无燃烧的熔体滴落(也就是说,燃烧着的熔体滴落在位于测试样品下面的一英尺的棉花垫上﹐不能引燃棉花)。 UL 94 HB - GWIT per par. 3.20 of at least 575°C or a GWFI per par. 3.21 of at least 550°C, or UL standards often allow “pre-selection” material tests to avoid end-product testing Understanding the nuances of the “V” test ratings and how UL standards use the UL 94 1 Scope 1.1 These 1.2 The methods described in this Standard involve standard size specimens and are intended to be used solely to measure and describe the flammability properties of materials, used in devices and appliances, in response to a small open flame or radiant heat source under controlled laboratory conditions. HB是UL94标准中最低的阻燃等级。试验方法是水平夹住试片的一端与水平成 45±2 度,取一铁网,水平固定在试片下方 10±1mm,将本生灯(火焰高度20mm左右)成 45 度,移动到试片另一端接触样品 6mm,并计时 30±1 秒后移开,待试片烧至 25mm 标记时,启动另一计时器。 UL 94 contains the following tests: 94HB, 94V, 94VTM, 94-5V, 94HBF, 94HF and Radiant Panel. The 94HB test describes the Horizontal Burn method. Methods 94V and 94VTM are used for Vertical Burn, a more stringent test than 94HB. The 94-5V test is for enclosures for products that are not easily moved or are attached to a conduit system.

Ul 94 standard免费下载

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Requesting a UL Yellow Card from RTP Company (向RTP公司要UL黄卡) UL 94 HB flammability standard(UL94 HB可燃性标准) Specimen 试片 Length 125 mm (5 in) x Width 13 mm (0.5 in) x Thickness [typically 1.5 mm (1/16 in) or 3.0 mm (1/8 in) or 6.0 mm (1/4 in)]. UL 94 flammability testing is the first step toward obtaining a plastic recognition and subsequent listing in the "Plastics Recognized Component Directory" (former known as "Yellow Cards"). UL 94 contains the following tests: 94HB, 94V, 94VTM, 94-5V, 94HBF, 94HF and Radiant Panel. The 94HB test describes the Horizontal Burn method. UL-94 Test classification - Fire test standard. 首页 文档 视频 音频 文集. 文档. 搜试试. 会员中心. VIP福利社. VIP免费专区 Fire test standard 爱问共享资料ul 943文档免费下载,数万用户每天上传大量最新资料,数量累计超一个亿 UL 943 1 Scope(范围) 1.1 These requirements cover ground-fault circuit-interrupters intended for use only in alternating-current circuits wherein one of the wires is grounded in accordance with the National Electrical code.

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提供UL94标准word文档在线阅读与免费下载,摘要:UL94标准介绍UL94UL94HBflammabilitystandard(UL94HB可燃性标准)oRequirementsforHB(HB的要求条件)UL94V-0,V-1,V-2flammabilitystandard(UL94V- 谁引用了ul 94-2013 关系 非常抱歉,我们暂时无法提供预览,您可以试试: 免费下载 UL 94-2013 前三页 ,或者稍后再访问。 如果您需要购买此标准的全文,请联系: 。 UL 94-1996 发布日期 1996-10-29 实施日期 废止日期 无 中国标准分类号 G31 国际标准分类号 13.220.40;83.080.01 发布单位 US-UL 代替标准 UL 94-2009 UL 94-2013 适用范围 UL is issuing a Recirculation Proposal to address comments received on the previous UL 94 Proposal dated October 14, 2005.

Ul 94 standard免费下载

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UL Standards encompass UL's extensive safety research and scientific expertise. With over a century of experience in the development of more than 1,500 Standards, UL is an accredited standards developer in the US and Canada. • UL 94 is a flammability standard for plastic materials, horizontal burning or vertical burning tests (HB V-2, V1, V-0) • UL94-5V is test standard for the materials which are already classified in UL94 V-0, including both vertical and horizontal burning tests (UL94-5VA or UL 94, the Standard for Safety of Flammability of Plastic Materials for Parts in Devices and Appliances testing There are two types of pre-selection test programs conducted on plastic materials to measure flammability characteristics. UL94 V-0, V-1, V-2 Flammability Standard ANSI/UL 94-2013 设备和器械零件用塑料材料的易燃性安全性试验标准 Standard for Safety Tests for Flammability of Plastic Materials for Parts in Devices.

UL COPYRIGHTED MATERIAL – NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 6 UL 94 MARCH 28, 2013 2 References 2.1 General 2.1.1 Any undated reference to a code or standard appearing in the requirements of this standard shall be interpreted as referring to the latest edition of that code or standard. UL 96A-2007 防雷系统安装要求安全性UL标准 国外国际规范.pdf; UL 104-2016 升降机门锁装置和触点安全性UL标准 国外国际规范.pdf; UL 142-1998 国外国际规范.pdf; UL 142A-2018 UL Standard For Safety Special Purpose Aboveground Tanks For Specif. 国外国际规范.pdf 本类标准下载排行 ANSI X3.141-1987(R1992)信息系统 - 数据通信系统和服务 - 测量方法以用户为导向的绩效评价 ANSI Z21.78a Addenda-1993气体器具的混合气体控制装置.补充件 标准UL 94 BULLETIN-2018.pdf,Subject 94 January 19, 2018 SUMMARY OF TOPICS The following changes in requirements to the Standard for Tests for Flammability of Plastic Materials for Parts in Devices and Appliances, UL 94, are being proposed: 1.

[单选题] * Understanding 5G New Radio Release 15/16 Standards Keysight maximum number of configured Component Carriers for a UE is 16 for DL and 16 for UL. +33 4 92 94 42 00 Fax: +33 4 93 65 47 16 Siret N° 348 623 562 00017 - NAF 爱问共享资料中国电信5g多连接网络架构文档免费下载,数万用户每天上传  Get info on UL 94 Flammability test which was developed by Underwriters Laboratories for determining a specimen's relative flammability. PlayStation 1 was released on December 3, 1994 in Japan, 3rd September, 70q2վ468i:L >s@ B D F H J &L -N 4P R CET JjV Q X WZ ^\ f^ m` u b |\d f h j ul n p r yt v x z. (Ecm) platform, based on modern Java EE standards and components. 这个软件是老毛子开发的一款免费软件,无广告,直接从play下载后发上来的, 

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