ASTM & NDTMA 2017 Meeting, ASTM E165 (cleaning, elemental analysis), ASTM E709 (parallel magnetism), ASTM E-1316
As usual, the January meeting of ASTM Committee E-07 was held in Plantation Florida on January 23 and 24. The penetrant section of the meeting dealt with revisions and updating of E-165, a subject that the committee has been working on for several meetings. The ASTM Committee is under the direction of Brian MacCracken, of Pratt & Whitney, and the penetrant effort is lead by Frank DeSande, of Boeing. ASTM E-165 is a “Standard Guide”, which means that it is a tutorial document that has the purpose of giving guidance to those using penetrant inspection. As a guide, it provides general information about the penetrant inspection process, and is especially useful for those who are newcomers to this method of inspection.
Past versions of E-165 required updating in several ways, but one of these was a simple substitution of the word “should” for the word “shall”. Tutorials are intended to give general information and guidance, and the word “should” more properly expresses the intent of certain of the processes described in the document.
Without listing all of the many changes that were made to the document, some of the major ones
were as follows:
- The wording concerning the care required to prevent penetrants being washed out of discontinuities either by over washing or improper use of solvent remover was made clearer.
- The definition and description of lipophilic emulsifiers was clarified.
- Emulsifier dwell time was clearly defined as that time in which the emulsifier was in contact with the
penetrant, regardless of whether the part was immersed in the emulsifier or whether it was draining.
- The wording concerning the application of developer was tightened up to be clearer concerning
- Wording concerning black light or UV light was addressed by dealing with warm up time, wavelength, line voltage, exposure time on parts, visual adaptation, etc
ASTM E165 has several annexes that deal with precleaning, post cleaning, and the analysis of penetrant materials for impurities such as Chlorine and Fluorine. These were in pretty good shape and had only very minor changes made. Progress on this document has been steady and effective, largely due to the time and effort put into it by Frank DeSande, who has made the review of the proposed changes easy,
by sending committee members copies of the document in which the proposed changes are highlighted in
ASTM E-1316 was also considered in the meeting. This document simply defines terms used in other
documents, and although it has been worked on for several years, there still are objections to some of the
definitions by some of the committee members. Without getting into the specific items, the committee
considered each objection and dealt with it appropriately. In most cases, the committee voted that the objection was non persuasive, and allowed the present definitions to remain.
Work also continued with ASTM E-709, under the direction of George Hopman. One of the more interesting moments in the meeting concerned an objection to the definition of parallel magnetism, where the objection centered on the statement that parallel magnetism produced a distorted magnetic field. George had obtained a copy of a 1941 book on magnetic inspection authored by F.B. Doane, of Magnaflux®. In this book the subject of parallel magnetism was addressed, along with a photo of the magnetic field developed and described by Doane as “distorted”.
NDTMA will meet in Las Vegas February 12 -15. This is a meeting that focuses on the needs of the NDT
Lab. Business, from the management perspective. A serious threat to this business is the sqeeze on profitability due to increased costs of qualified personnel, government and industry regulations (NADCAP), and resistance by the customer base to allow the costs to be passed on. This is on top of the increased costs all businesses are experiencing due to rising energy costs.
A good meeting to learn what is going on in the NDT business. Too often the value of qualified NDT
personnel and NDT itself is over looked until too late.