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MT/T 691-1997 English PDF

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MT/T 691-1997: Determination of electrostatic potential in detonator production line

Standard ID	Contents [version]	USD	STEP2	[PDF] delivered in	Standard Title (Description)	Status	PDF
MT/T 691-1997	English	179	Add to Cart	2 days [Need to translate]	Determination of electrostatic potential in detonator production line		MT/T 691-1997

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Basic data

Standard ID	MT/T 691-1997 (MT/T691-1997)
Description (Translated English)	Determination of electrostatic potential in detonator production line
Sector / Industry	Coal Industry Standard (Recommended)
Classification of Chinese Standard	G89
Classification of International Standard	71.100.30
Word Count Estimation	5,568
Date of Issue	12/30/1997
Date of Implementation	7/1/1998
Quoted Standard	GB 4385-1995; GB 12014-1989; MT 520-1995
Summary	This standard specifies the detonator production line of electrostatic potential measurement instruments, measurement conditions, measured steps and so on. This standard applies to the determination of electrostatic potential mine detonator production line.

MT/T 6:

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Determination of electrostatic potential in detonator production line People's Republic of China Coal Industry Standard MT 691-1997 Method for measuring electrostatic potential of detonator production line Determination of electrostatic potential in detonator production line 1997-12-30 Approved.1998-07-01 Implementation Approved by the Ministry of Coal Industry of the People's Republic of China

1 Scope 1 2 Normative references 1 3 Basic principles 1 4 Instrument 1 5 Measurement conditions 1 6 Determination step 1 7 Measurement object 1 8 Test report 1 MT 691-1997 Method for measuring electrostatic potential of detonator production line

1 Scope

This standard specifies the instruments, measurement conditions, and measurement procedures for measuring the electrostatic potential of detonator production lines. This standard is applicable to the measurement of electrostatic potential of detonator production lines in coal mines.

2 Reference standards

The following standards contain provisions that, through reference in this standard, constitute provisions of this standard. When this standard was published, the editions shown were all Is effective. All standards will be revised, and all parties using this standard should explore the possibility of using the latest versions of the following standards. GB 4385-1995 Technical requirements for anti-static shoes and conductive shoes GB 12014-89 anti-static work clothes MT 520-1995 Antistatic safety regulations for mine detonator production plants

3 Basic principles

An arbitrary point in the electric field is used as a reference point. The potential of each point in the electric field to this point can be used to compare or explain the nature of the electric field. Reference point After selection, the potential of each point to the reference point is only related to the position of that point. So as long as the potential at this point is measured, a table of charged objects can be obtained. Area potential.

4 instruments

Use a non-contact electrostatic potentiometer that meets the safety requirements of the detonator production line. Measurement range is 0 ~ 50 kV, its accuracy is ± 2.5%.

5 Measurement conditions

5.1 The measurement site should have anti-static facilities. 5.2 Avoid measuring near strong electric and magnetic fields, and keep away from other charged objects. 5.3 Determination of environmental conditions. temperature 10 ~ 40 ℃, relative humidity is not less than 60%.

6 Measurement steps

6.1 The tester should wear the GB 12014 anti-static workwear and GB 4385 anti-static shoes. 6.2 Check the instrument to make sure it complies with the provisions of this standard. 6.3 Adjust the instrument so that it is in normal working condition. 6.4 Adjust the zero point. 6.5 Measurement. Hold the sensor by hand or mechanically, align the end face of the sensor with the center position of the surface of the electrostatic charge to be measured, and level the measured surface Row. The distance between the sensor and the measured object is determined according to the requirements of the instrument manual. 6.6 Measure the measured object and make a record in time.

7 Measurement object

Press MT The classification of procedures specified in Chapter 520 of 520 performs electrostatic potential measurement on each procedure and the human body.

8 Test report

The test report must include the following. MT 691-1997 a) measurement time; b) measured temperature and humidity conditions; c) using the name and model of the instrument; d) the location of the measurement; e) The measured electrostatic potential value. MT 691-1997

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