久久久久亚洲精品男人的天堂,日本韩国男男作爱GAYWWW,特黄AAAAAAA片免费视频,av天堂电影网

產(chǎn)品展廳收藏該商鋪

您好 登錄 注冊

當(dāng)前位置:
東莞市勤卓環(huán)境測試設(shè)備有限公司>技術(shù)文章>ASTM D4434

技術(shù)文章

ASTM D4434

閱讀:993          發(fā)布時間:2019-8-12

ASTM D4434

本頁面標(biāo)準(zhǔn)信息均來源于網(wǎng)絡(luò)收集,或由參與標(biāo)準(zhǔn)制定的供應(yīng)商提供,只作為參考使用,為確保測試結(jié)果的準(zhǔn)確性、節(jié)省您的時間,如需ASTM D4434標(biāo)準(zhǔn)詳細(xì)信息或ASTM D4434具體測試方法,可與我們技術(shù)人員聯(lián)系或給我們留言,我們將為您提供相關(guān)的技術(shù)支持。


聚氯乙烯屋面薄板的標(biāo)準(zhǔn)規(guī)范:

本規(guī)范規(guī)定了擬用于單層屋頂薄膜的、用聚氯乙烯樹脂作為初級聚合物而制造的柔性薄板空氣暴露測試程序。

kingjo氙燈試驗(yàn)箱ASTM D4434測試方法

 

ASTM D4434測試方法

 

ASTM D4434英文簡介

This specification covers flexible fiber- or fabric-reinforced sheet made from poly(vinyl chloride) resin as the primary polymer intended for use in single-ply roofing membranes exposed to the weather. The sheet shall contain. In-place roof system design criteria such as fire resistance, material compatibility, wind uplift resistance, in-situ shrinkage, among others, are beyond the scope of this specification. The physical requirements for which the sheet materials shall be tested on and shall conform accordingly to are as follows: overall thickness and thickness over scrim; tensile strength at break; breaking strength; elongation at break; seam strength; retention of properties after heat aging; tear resistance and tearing strength; low temperature bend; cracking and crazing after accelerated weathering test; linear dimensional change; change in weight after immersion in water; and static and dynamic puncture resistance.

This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

1. Scope

1.1 This specification covers flexible sheet made from poly(vinyl chloride) resin as the primary polymer intended for use in single-ply roofing membranes exposed to the weather. The sheet shall contain reinforcing fibers or reinforcing fabrics.

1.2 The tests and property limits used to characterize the sheet are values intended to ensure minimum quality for the intended purpose. In-place roof system design criteria, such as fire resistance, material compatibility, wind uplift resistance, in-situ shrinkage, among others, are factors that must be considered but are beyond the scope of this specification.

1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.

1.4 This standard may involve hazardous materials, operations, and equipment. This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitation prior to use.

2. Referenced Documents (purchase separately)

ASTM Standards

D570 Test Method for Water Absorption of Plastics

D638 Test Method for Tensile Properties of Plastics

D751 Test Methods for Coated Fabrics

D1004 Test Method for Tear Resistance (Graves Tear) of Plastic Film and Sheeting

D1204 Test Method for Linear Dimensional Changes of Nonrigid Thermoplastic Sheeting or Film at Elevated Temperature

D2136 Test Method for Coated Fabrics--Low-Temperature Bend Test

D3045 Practice for Heat Aging of Plastics Without Load

D5602 Test Method for Static Puncture Resistance of Roofing Membrane Specimens

D5635 Test Method for Dynamic Puncture Resistance of Roofing Membrane Specimens

D7635/D7635M Test Method for Measurement of Thickness of Coatings Over Fabric Reinforcement

G151 Practice for Exposing Nonmetallic Materials in Accelerated Test Devices that se Laboratory Light Sources

G154 Practice for Operating Fluorescent Light Apparatus for V Exposure of Nonmetallic Materials

G155 Practice for Operating Xenon Arc Light Apparatus for Exposure of Non-Metallic Materials

收藏該商鋪

登錄 后再收藏

提示

您的留言已提交成功!我們將在第一時間回復(fù)您~

對比框

產(chǎn)品對比 產(chǎn)品對比 聯(lián)系電話 二維碼 意見反饋 在線交流

掃一掃訪問手機(jī)商鋪
189-2580-2250
在線留言
欧美精品v日韩精品v国产精品| 日本精品二区| 亚洲欧美韩国日产综合在线| 亚洲黄色男人天堂| 香蕉深夜福利视频二区| 欧美精品中文字幕亚洲专区| 日本久久久久久久中文字幕| 另类人妻中文字幕| 亚洲AV区无码字幕中文色| 无码激情AV一区二区三区| 一二三四日本无吗| 免费无码又爽又黄又刺激网站| 中文字幕无码亚洲八戒| 欧美日韩国产综合一区二区三区| 久久亚洲国产伦理| 好久不见在线观看免费高清第二集| 亚洲国产福利一区二区三区| JAPANESEHDFREE人妻无码| 欧美不卡精品中文字幕日韩| 日本在线av观看| 国产在线观看精品一区二区三区91| 日日噜狠狠噜天天噜AV| 色偷偷888欧美精品久久久| 请回答1988在线观看免费观看| 欧美成人精品 一区二区三区| 国产午夜福利久久精品| 三年电影手机在线观看免费| bt天堂国产亚洲欧美在线| 人妻丝袜AV中文系列先锋影音| 少妇养生馆SPA私密精油按摩| 78成人摸电影在线观看| 91精品久久| 处 女 开 破视频处CT开| 99在线精品免费观看视频| 荫蒂每天被三个男人添视频| 精品加勒比久久精品| 国产精成人品日日拍夜夜免费| 国产成人年无码AV片在线观看| 国产精品99久久久久久AV色戒| 激情综合色综合啪啪五月丁香搜索| 日韩不卡1卡2卡三卡免费网站2021|