JIS Z 8401 PDF

Find the most up-to-date version of JIS Z at Engineering JIS Z Guide to the rounding of numbers (FOREIGN STANDARD). Available for Subscriptions. Content Provider Japanese Industrial Standards [JIS] . Correct: Rule B of JIS Z Rule A of JIS Z Remarks: This erratum is for correcting the first edition of this Standard. Japanese Standards Association.

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Similarly, an jos kerraa and air absorbed dose per unit time are called “the rate of an air kerma”, and “rate of an air absorbed dose”, respectively. The other is that the beam monitor which monitors the output change of irradiation equipment is concurrently used. Vote Promote or demote ideas. Subtract its minimum from its maximum and divide the difference by its minimum.

Moreover, 70 ,u m dose equivalent in connection with an individual is the dose equivalent in the depth of 70 u m. It is referred to as “calibration tables”. WTien y -ray irradiation equipment with the similar value setting is used independently, it shall be included in this category, I A practical reference y -ray source is a y -ray source where a reference meter determines the value of the exposure rate, the rate of an air kerma, or the dose equivalent rate 4801 a radiation source.

As for the quality of the material of the substance used for the filter, the purity shall be Grading comment Thanks everybody. Practical y -ray irradiation equipment is assigned a value by the ICRU-sphere dose equivalent rateand it can set a practical ICRU’sphere dose-equivalent rate standard.

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It shall also be based on the practical dose-equivalent rate standard whose value is decided by the practical dose -equivalent rate standard, as well as the calibration for confirmation.

Calculate the reproducibility of response from the calibration constant. The contents shall be as follows- In addition, method to round numbers shall be as specified in JIS Z The substance used as a filter shall be of four kinds- aluminum, copper, tin, and lead. Printed in Japan.


Round off to one decimal tenth place. Round off to one decimal tenth place Explanation: Search the history of over billion web pages on the Internet. English PRO pts in category: In such a field, an arr absorbed 3 dose practical meter can be calibrated. Unless otherwise specified, no part of this pubhcation may bo reproduced or utihzed in any form or by any means, electronic or mechanicat including photocopying and microfilm, without permission in writing from the publisher. If there is no corresponding energy, it shall be found by interpolation.

The record shall be maintained to enable continual confirmation.

Grading comment Thanks everybody 4 KudoZ points were awarded for this answer. I looked for js, and found many references to the standard, but was unable to find the standard itself.

Totalizing type One point within the entire measuring range. You can request verification for native languages by completing a simple application that takes only a couple of minutes.

JIS Z English: General principles, Annex B Guide to the rounding of numbers http: Attention is drawn to the possibility that some parts of this Standard may conflict with a patent right, application for a patent after opening to the public, utility model right or application for registration of utility model after opening to the public which have technical properties. You will also have access to many other tools and opportunities designed for those who have language-related jobs or are passionate about them.

When obtaining the ratio of the indicated value at the time of calibration to the initial indicated value, use half-life compensation of a radiation source.

Express the quotient in percentage. The coefficient of variation shall be 0. The calibration constant of a meter to be calibrated shall be obtained by the following formula. In the case of the digital scale, the number of the second lowest digit should be 3 or over. Calibration of a dose-equivalent practical meter shall be based on the dose-equivalent rate standard which is obtained by multiplying the practical air kerma rate standard by the dose-equivalent conversion factor.


The value shall be obtained by the following formula. Term search All of ProZ. In that case, the indicated value at the time of calibration for confirmation shall be obtained by performing the same number of measurements. Moreover, the practical exposure rate standard is multiplied by the air absorbed dose conversion g factor in order to set vip the filed of the practical air absorbed dose rate standard.

In this case, a personal dosemeter shall be placed at the central part of the phantom and as close as possible to the phantom.

JIS Z 8401:1999 English Edition

Calculate the stem effect by dividing the difference of indicated value by the value obtained wdthout the shield. A long dashed double-short dashed line shows the relation to a practical ICRU slab dose- equivalent rate standard. The purpose of calibration for confirmation is to verify and confirm that the performance of a meter is maintained continually and that it is sufficiently accurate for the intended measurement which uses the said meter.

Peer comments on this answer and responses from the answerer.


The revision introduces an air kerma standard and concerns the fundamental matters of the system of calibration. But, it should have intense enough to fully verify the validity of the 840 constant of a meter to be calibrated. View Ideas submitted by the community.

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