ASNT-SNT-TC-1A_材料科学_工程科技_专业资料 The Ameiican Society for Nondestructive Testing, Inc. (ASNT) is not responsible for. SNT-TC-1A Changes Explained ASNT Recommended Practice No. SNT- TC-1A Edition Below is a list of changes by chapter from the SNT-TC-1A. SNT-TC-1A ( Edition). The American Society for Nondestructive Testing ( ASNT) Recommended Practice No. SNT-TC-1A had its beginning in the early.

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Typically, all three 3 levels are recertified at five 5 year intervals; however, interruption intervals of inactivity for suspension of certification should be addressed.

These are not included in the cost of shipping or handling of your order. The employer’s written practice shall be maintained on file.

Grading units are unflawed or flawed and the percentage of flawedlunflawed grading units required should be approved by the NDT Level This document is revised periodically, usually every five 5 years. Level II Study Guides: In the employer’s written practice, the verb “shall” is to be used in place of “should to emphasize the employer’s needs.

Personnel Qualification and Certification in Nondestructive Testing provides guidelines for employers to establish in-house certification programs for the qualification and certification of nondestructive testing personnel.

Ultrasonic Testing Method 1. The minimum recommended number of questions for the specific examination are given in Table 2.

It acts as a biomonitor. Proficiency should be demonstrated in selecting and performing the applicable NDT technique within the method and interpreting and evaluating the results on one or more specimens or machine problems approved by the NDT Level Which of the following conversion screens has the longest half-life? All sales are final on software and multimedia products. Send the standard leak to the manufacturer for recharging. The vibration amplitude is really a response that is: In such instances, the responsibility of certification of the employees should be retained by the employer.


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ASNT exists to create a safer world by promoting the profession and technologies of nondestructive testing. Time of Flight Diffraction 1. The organized training may include instructor led training, self-study, virtual instructor led training, computer based training or web based training.

Experience Personnel should achieve the minimum experience level recommended which will vary for each particular NDT method. This should be conducted upon initial certification and at five-year intervals thereafter. A written “General” examination to demonstrate the candidates knowledge of the basic principles and fundamentals of the method.

All inquiries should be sent to: Infrared and Thermal T.

PQT Services Company – SNT-TC-1A Qualification and Certification

MeV If an exposure time of 60 seconds were necessary using a 1. You are using an unsupported version of Internet Explorer, certain features of this site will not function correctly unless you upgrade. This set of guidelines, first published inis called the Recommended Practice No.

No part of this publication may be reproduced or transmitted in any form, by means electronic or mechanical including photocopying, recording or otherwise, without the expressed prior written permission of The American Society for Nondestructive Testing, Inc.

Alternating Current Field Measurement 2. While there are several personnel qualification and certification programs used, SNT-TC-1A employer based certification has been widely accepted throughout the United States as the primary guide used for NDT personnel certification.

An NDT Level I11 individual should be capable of developing, qualifying, and approving procedures, establishing and approving techniques, interpreting codes, standards, specifications, and procedures; and designating the particular NDT methods, techniques, and procedures to be used. The verb “should” has been used throughout this document to emphasize the recommendation presented herein.

This initial experience is recorded in method hours and total NDT hours. Store Online Store Home.

Computed Radiography Testing Level I 1. In the top section of the forrn, provide complete contact information so that you can be reached should clarification be required.


At least ten 10 different checkpoints requiring an understanding of test variables and the employer’s procedural requirements should be included in this practical examination.

In the Background block, provide any additional information that snt–tc-1a-2011 explain the need for the clarification or the intent of a paragraph or section. Throughout this document the term NDT applies equally to the NDT inspection methods snt-tx-1a-2011 for material inspection, flaw detection or predictive maintenance PdM applications. The training outline should be as defined in the employer’s written practice. The mean absolute dry bulb temperature of system air for this test data point is: When sht-tc-1a-2011 a penetrant test, spherical indications on the surface of a part could be indicative of: The velocity of guided waves depends on: Sinceemployers have used this industry-valued document as the general framework for their NDT certification programs.

Proficieilcy should be demonstrated in performing the applicable NDT on one or more specimens or machine probleins approved by the NDT Level I11 and in evaluating the results to the degree of responsibility as described in the employer’s written practice.


HolographyIShearography Leak Testing 1. The NDT Level I1 should be thoroughly familiar with the scope and limitations of the methods for which snt-tc-11a-2011 and should exercise assigned responsibility for on-the-job training and guidance of trainees and NDT Level I personnel.

A Phased Array 1. Magnetic Particle training hours may be counted towards Magnetic Flux Leakage training hours as defined in employer’s written practice.