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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When y -ray irradiation equipment with the similar value setting is used independently, it shall be included in this category. The 70 ii m dose equivalent is indicated by Hi ,m. View forum View forum without registering on UserVoice. First, a meter to be calibrated is used.

Moreover, the same radiation source shall be used through the usable years of a meter.

The calibration constant of a meter to be calibrated shall be obtained by the following formula. But, it should have intense enough to fully verify the validity of the calibration constant of a meter to uis calibrated. General principles, Annex B Guide to the rounding of numbers http: I looked for it, and found many references to the standard, but was unable to find the standard itself. You have native languages that can be verified You can request verification for native languages by completing a simple application that takes only a couple of minutes.

The uncertainty in calibration shall be found the square root of the sum of the square of uncertainty of the field where a standard was set uncertainty of jiis calibration including the performance of a reference meter, or uncertainty of calibration of 8410 reference y -ray source and the sum of the square of uncertainty of a meter to be calibrated including uncertainty of calibration6 Uncertainty of calibration 6.

Next, suppose that the value would be obtained on the phantom. The ionization chamber shall have the wall thickness or entrance window thickness and meet the performance indicated in table 1, depending on each energy range used. Peer comments on this answer and responses from the answerer agree. Late responding, but I agree on this. 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.

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Similarly, an air kerraa and air absorbed dose per unit time are called “the rate of an air kerma”, and “rate of an air absorbed dose”, respectively. Totalizing type One point within the entire measuring range.

Figure 4 In the case of X-ray irradiation 11 Radiation quality of X-rays 11,1 Measuring method of the 1st and 2nd half-value layers Under a certain tube voltage, tube current, the characteristic filter including the air spaceand added-filter conditions, a dose rate over the thickness of the filter for half- value -layer measurement of a certain single substance shall be measured.

Round to one decimal place.

An initial indicated x shall be obtained promptly after the calibration constant is defined. The coefficient of variation shall be 0. You will also have access to a other tools and opportunities designed for those who have language-related jobs or are passionate about them.

As necessary, the record at the time of calibration original calibration record shall be attached. In that case, the indicated value at the time of calibration for confirmation shall be obtained by performing the same number of measurements.

In addition, this dose equivalent rate is indicated by H icm. Calculate the linearity of scale from the calibration constant.

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A long dashed double-short dashed line shows the relation to a practical ICRU slab dose- equivalent rate standard. In the case of a stationary type meter, it shall be obtained promptly after installation at the place of use. The normative references without the indication of the year of coming into effect apply only to the most recent editions including amendments. Irradiation shall be performed using the practical y -ray source and irradiation conditions which were specified beforehand.

In this case, a personal dosemeter shall be placed at the central part of the phantom and as close as possible to the phantom. Calibration of the personal dosemeter installed in the phantom hereafter referred to as “phantom installed personal dosemeters’O shall be performed by one method of the following- 1 In the field where a reference uis and irradiation equipment determines the practical air kerma rate standard, which is jjis by the dose -equivalent conversion factor in order to set the ICRU slab dose-equivalent rate jos, a substitution method or an inverse square laW’ shall be used.


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In this Standard, an air kerma or rate of an air kerma is expressed with an air kerma rateand an air absorbed dose or rate of an air absorbed dose is expressed with an air absorbed dose rate. As for the quality of the material of the substance used for the filter, the purity shall be One is that a meter to be calibrated and a reference instrument specified in ISO “3 are simultaneously irradiated.

JIS Z – Guide to the rounding of numbers (FOREIGN STANDARD)

It can be performed only when the dosemeter of the same type is calibrated. Printed in Japan. Round to one decimal place Entered by: English PRO pts in category: Eemarks 1 The dose equivalent per unit time is called “dose equivalent rate”, and the dose equivalent or dose equivalent rate is expressed with “the dose equivalent rate ” in this Standard.

Full text of ” JIS Z 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. Vote Promote or demote ideas. Return to KudoZ list. Calculate the reproducibility of response from the calibration constant.

Moreover, in the class of practical reference meter, there are an exposure or an air kerma practical reference meter, and a dose-equivalent practical reference meter. However, calibration for confirmation may be perfbrmed continually in the following case.