This standard specifies the classification, technical requirements and test methods of blocks for penetrant testing (or penetrant testing blocks).
This standard is applicable to type testing and Exfactory inspection of penetrant testing blocks.This standard may also be used as the acceptance criteria for in client orders.
NOTE The penetrant testing blocks applicable to this standard do not include Type 1 and Type 2 blocks in GB/T 18851.3.
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This document specifies a test method for determining the mean pore size of separation membranes by gas permeation method.
This document is applicable to the mean pore size test for flat membranes and hollow fiber membranes with a diameter within 0.01μm-0.20μm in dry state, and for other shapes of separation membranes this document may be referred to.
This document is applicable to the mean pore size test with nitrogen as the test gas, and the test with other noncondensable gases, such as He, H2, O2, Ar etc., may refer to this document.
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本文件规定了使用白光或紫外光(UV-A,中心波长为365 nm)检测被检材料表面开口不连续(如裂纹、重皮、折叠、气孔和未熔合等)的渗透检测方法。该方法主要用于金属材料,但也用于其他非多孔性且对渗透材料呈惰性的材料(如铸件、锻件、焊接件、陶瓷等)。
本文件规定了检测过程与控制要求,但不包括验收准则。本文件不涉及个别检测系统特定应用的适用性信息,也不涉及检测设备的要求。
注1:测定和监测渗透检测产品的基本性能方法,见ISO 3452-2和ISO 3452-3。
注2:本文件使用的术语“不连续”包括了所有尚未进行可接受或不可接受验收评定的显示。
注3:CEN/TR 16638 给出了使用光化蓝光进行渗透检测的方法。
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