亚洲一区二区三区,精品无码日韩国产不卡av,少妇被粗大的猛烈进出动视频
,午夜福利高清在线观看,夜夜嗨久久人成在日日夜夜,久久亚洲中文字幕不卡一二区,人妻少妇精品视频无码综合,激情 自拍 另类 亚洲
遠東無損檢測資訊網
標題: 無損檢測英語學習園地---1 [打印本頁]
作者: 丁偉臣 時間: 2013-6-28 23:16
標題: 無損檢測英語學習園地---1
1 Non-Destructive Examination (NDE) acc. EN 13 480-5; article 81.1 NDE scheduleBased on the types and extent of NDE required under the applicable codes and standards or any additional specifications, the Fabricator/Installer or the inspection/test organization commissioned by him shall prepare a NDE schedule. The NDE schedule shall be submitted to Lurgi and, where applicable, the Authorized Inspector, for review and approval.
1.2 Selection of NDE methodThe method and scope of non-destructive examination required are defined in the Lurgi welding data sheets.
For the criteria to be satisfied for the use of these examination methods, please refer to EN 12062.
In special cases, it may be necessary to examine the welds and the adjacent transition zones for cracks, open pores and other surface imperfections. This applies in particular to materials sensitive to cracking.
If required, the type and scope of magnetic particle or liquid penetrant examination shall be separately agreed between Lurgi and the Fabricator/Installer. An additional magnetic particle or liquid penetrant examination shall be performed in all cases where the Test Category B criteria for radiography and ultrasonic examination set out in AD 2000 HP 5/3 cannot be met for the respective material groups.
1.3 Performance of NDEAll NDE shall be performed by inspection/test organizations which can draw on properly qualified own personnel including own inspection/test supervisors and are equipped with suitable test equipment.
Where random examinations are specified, the welds to be examined shall be selected by the Fabricator/Installer and, in the case of piping subject to official inspection, the Authorized Inspector. Lurgi will verify the objective selection of welds to be examined and reserves the right to select additional welds to be subjected to NDE.
A minimum of 50 % of all the welds examined shall be field welds. Welds whose root side is not visible shall be preferably selected for examination.
A random examination scope of 10% means that 10% of all welds shall be completely examined (in each case, one out of ten welds shall be examined over its complete length).
After completion of the weld examinations, the examination results shall be evaluated by the inspection/test organization in cooperation with the Fabricator/Installer and, for piping subject to official inspection, the Authorized Inspector. Lurgi reserves the right to carry out random checks of the NDE evaluation.
Whenever possible, NDE should be started directly after completion of the first welds in order to obtain information on the quality of the welding work early on in the fabrication/installation process.
NDE shall be performed after the last fabrication step and where welds are heat treated, after the final postweld heat treatment. (The Fabricator/Installer shall, however, be free to perform additional NDE prior to the postweld heat treatment) In the case welding repairs, the repaired welds shall always be examined by NDE in order to rule out a renewed repair and hence, a third postweld heat treatment.
All NDE shall be successfully completed prior to hydrostatic testing of the piping.
The Fabricator/Installer shall ensure access to the welds to be examined. Any scaffolding required for this purpose shall be provided by the Fabricator/Installer.
A sufficient time for NDE shall be provided for in the fabrication/installation schedule.
At construction sites, the removal of any scaffolding required for NDE or the commencement of insulation or coating work in the area of examined welds shall only be allowed after the examination result "no objections" is available and release for such work has been given by Lurgi.
For radiographic examination, the requirements of the radiation protection regulations shall be observed. In this connection, special care shall be taken to rule out harmful effects on personnel working in the vicinity of the test location or interferences with the proper function of radiometric level measuring instruments.
1.4 Qualification of NDE personnelAccording to AD 2000 HP 4, NDE personnel shall have a sufficient basic knowledge to command the technology involved in the examinations to be performed by them.
Depending on the specific functions to be performed, NDE personnel shall furnish evidence of the following qualifications as per EN 473.
感興趣的學友請將翻譯后的文件發到我郵箱，我將組織大家共同糾錯。
| 歡迎光臨 遠東無損檢測資訊網 (http://www.unipc.com.cn/) |
Powered by Discuz! X5.0 |
主站蜘蛛池模板：
亚洲精品网站在线观看不卡无广告|
国产成人MV视频在线观看|
91亚瑟视频|
日本青青草在线|
日本一区二区在线播放|
拍真实国产伦偷精品|
亚洲电影在线观看|
亚洲国产精品久久久久婷婷图片|
亚洲av永久无码天堂影院|
人妻免费无码不卡视频|
日本视频一两二两三区|
国产AV影片麻豆精品传媒|
狠狠躁天天躁日日躁躁躁|
国产97在线 | 免费|
人妻欧美亚洲|
欧美成人aaa片一区国产精品|
www.亚洲555久久久|
蕾丝av无码专区在线观看|
极品性荡少妇一区二区色欲|
免费无码AV一区二区波多野结衣|
国产中文字幕精品在线|
欧美黑吊大战白妞|
国产亚洲AV片在线观看16女人|
99精品国产中文字幕|
精品一区二区三区日韩版|
欧美顶级metart祼体全部自慰|
超碰伊人久久大香线蕉综合|
久青草六在线观看视频|
1000部啪啪未满十八勿入下载|
99亚洲男女激情在线观看|
手机看片欧美日韩|
免费看一区二区三区四区
|
亚洲一区二区精品偷拍|
免费吃奶摸下激烈视频|
日韩不卡一区二区三区|
制服无码在线第一页|
国产综合久久99久久|
四虎精品视频永久免费|
欧美大香线蕉线伊人久久|
日韩精品毛片人妻AV不卡|
精品久久久久久无码免费|