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MHT1002.1-2016 English PDF

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MHT1002.1-2016: Quality indexes of agricultural aviation operation. Part 1: Spraying operation
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Standard ID	Contents [version]	USD	STEP2	[PDF] delivered in	Standard Title (Description)	Status	PDF
MH/T 1002.1-2016	English	259	Add to Cart	3 days [Need to translate]	Quality indexes of agricultural aviation operation. Part 1: Spraying operation	Valid	MH/T 1002.1-2016

PDF similar to MHT1002.1-2016

Standard similar to MHT1002.1-2016

GB/T 23420 MH/T 2014 MH/T 1075 MH/T 2011

Basic data

Standard ID	MH/T 1002.1-2016 (MH/T1002.1-2016)
Description (Translated English)	Quality indexes of agricultural aviation operation. Part 1: Spraying operation
Sector / Industry	Civil Aviation Industry Standard (Recommended)
Classification of Chinese Standard	V53
Classification of International Standard	03.220.50
Word Count Estimation	11,142
Date of Issue	2016-01-27
Date of Implementation	2016-05-01
Older Standard (superseded by this standard)	MH/T 1002.1-1995
Quoted Standard	MH/T 1031-2010; MH/T 1040-2011
Regulation (derived from)	?Civil Aviation Industry Standard Announcement 2016 No.2
Issuing agency(ies)	Civil Aviation Administration of China
Summary	This standard specifies the technical specifications and measurement methods for the quality of aircraft spraying operations. This standard applies to airplanes equipped with spraying systems for constant, low-volume and ultra-low-volume spraying operations. Use of other types of aircraft spraying operations can refer to the implementation of this standard.

MHT1002.1-2016: Quality indexes of agricultural aviation operation. Part 1: Spraying operation

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Quality indexes of agricultural aviation operation-Part 1.Spraying operation ICS 03.220.50 V 53 Civil Aviation Industry Standard of the People's Republic of China Replace MH/T 1002.1-1995 Technical indicators of agricultural aviation operation quality Part 1.Spraying operation 2016-01-27 released 2016-05-01 Implementation Issued by Civil Aviation Administration of China

Foreword

MH/T 1002 "Agricultural Aviation Operation Quality Technical Index" is divided into two parts. --Part 1.Spraying operation; --Part 2.Broadcasting operations. This part is part 1 of MH/T 1002. This section was drafted in accordance with the rules given in GB/T 1.1-2009. This part replaces and abolishes MH/T 1002.1-1995 "Agricultural Aviation Operation Quality Technical Index Spray Operation", and MH/T 1002.1 -Compared with.1995, the main technical changes are as follows. -Modified the scope of this part (see Chapter 1, Chapter 1 of the.1995 edition); -Added "Normative Reference Documents" (see Chapter 2); --Added "spray rate", "permissible error of spray rate", "droplet distribution uniformity", "volume median diameter", "quantity" Terms and definitions such as “median diameter” and “droplet spectrum width” have been deleted, and terms and definitions such as “spray width” and “spray rate” have been deleted; (See Chapter 3, Chapter 2 of the.1995 edition); --Modified and simplified the "allowable error of spraying amount", "droplet coverage density", "droplet distribution uniformity", "droplet diameter" And other technical indicators, the technical indicators of "fog droplet spectrum width" have been added (see Chapter 4, Chapter 3 of the.1995 edition); --Added "Sampling" and "Spray rate error measurement", "Mist droplet coverage density and distribution uniformity measurement", "Mist drop diameter And the content of measurement methods such as the measurement of droplet spectrum width (see Chapter 5); -Added the content of "Report" (see Chapter 6); -Change the names of Appendix A and Appendix B to "droplet diameter of different spray objects" and "droplet coverage density of different spray objects", The technical indicators of the original standard "droplet size" and "droplet coverage density" are included in Appendix A and Appendix B (see Appendix A And Appendix B, Chapter 3 of the.1995 edition); --Added reports of "spray rate error", "droplet coverage density and distribution uniformity", "droplet diameter and droplet spectrum width" Single (see Appendix C); -Added "References". This part was proposed by the Transportation Department of the Civil Aviation Administration of China. This part was approved by the Aircraft Airworthiness Certification Department of the Civil Aviation Administration of China. This part is under the jurisdiction of the China Academy of Civil Aviation Science and Technology. Drafting organization of this section. The Second Research Institute of Civil Aviation Administration of China. The main drafters of this section. Zhu Xiaobo, Jin Junhao, Wang Bingxi, Ma Li, Xu Tianmu, Yan Fengshuo, Xiong Kui. This section was first published in October.1995. Technical indicators for the quality of agricultural aviation operations. Part 1.Spraying operations

1 Scope

This part of MH/T 1002 specifies the technical indicators and measurement methods for the quality of aircraft spraying operations. This section applies to aircraft equipped with spray systems for constant, low volume and ultra-low volume spraying operations. Use other types of aircraft to enter Line spraying operations can refer to this section.

2 Normative references

The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this article Pieces. For undated references, the latest version (including all amendments) applies to this document. MH/T 1031-2010 Specification for performance testing of agricultural aircraft spraying equipment MH/T 1040-2011 Measurement of spraying rate and distribution pattern of aviation spraying equipment

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 Conventional spray Spraying operations with a spray volume of not less than 30 L per hectare. Note. Rewrite MH/T 0017-1998, definition 3.15. 3.2 Low volume spray Spraying operations where the spray volume per hectare is greater than 5 L but less than 30 L. Note. Rewrite MH/T 0017-1998, definition 3.16. 3.3 Ultra low volume spray Spraying operations where the spray volume per hectare is not more than 5 L. Note. Rewrite MH/T 0017-1998, definition 3.17. 3.4 Application rate The amount of spray on the unit area of the treatment object. Note 1.Rewrite MH/T 0017-1998, definition 3.10. Note 2.The unit of spray rate is liter per hectare (L/hm2). 3.5 Permissible error of application rate The maximum allowable deviation of the actual spray rate from the predetermined spray rate. Note. The allowable error of spray rate is expressed in percentage. 3.6 Coverage density of droplets The number of droplets per unit area of the processing object. Note 1.Rewrite MH/T 0017-1998, definition 8.12. Note 2.The coverage density of droplets is expressed by the number of droplets per square centimeter. 3.7 Uniformity of deposits distribution The uniformity of the droplet distribution in the spray range. Note 1.Rewrite MH/T 0017-1998, definition 8.13. Note 2.The uniformity of droplet distribution is usually expressed by the coefficient of variation of droplet coverage density or deposition amount. 3.8 Volume median diameter The volume of the sampled droplets is accumulated in the order of droplet size, and the cumulative value is the droplet diameter corresponding to 50% of the total volume of the sampled droplets. [MH/T 0017-1998, definition 3.12.4] Note. The volume median diameter is expressed in microns (μm). 3.9 Number median diameter The number of sampled droplets is accumulated in the order of droplet size, and the cumulative value is the droplet diameter corresponding to 50% of the total number of sampled droplets. [MH/T 0017-1998, definition 3.12.3] Note. The median diameter of the quantity is expressed in microns (μm). 3.10 Droplet size spectrum The uniformity of the droplet size distribution. Note 1.Rewrite MH/T 0017-1998, definition 3.13. Note 2.Usually the ratio of volume median diameter to number median diameter (VMD/NMD), or the difference between 90% cumulative volume diameter and 10% cumulative volume diameter, and The ratio of the volume median diameter is expressed.

4 Technical indicators of operation quality

The quality and technical indicators of constant, low-volume, and ultra-low-volume spraying operations are shown in Table 1.The droplet diameter and droplet coverage density of different spraying objects Please refer to appendix A and appendix B.

5 Measurement method

5.1 Sampling 5.1.1 For sampling conditions, see 6.6.1 in MH/T 1031-2010. 5.1.2 For sampling line setting and sampling method, see 6.6.2 in MH/T 1031-2010. 5.2 Measurement of spray rate error Calculate the actual spray rate according to the methods specified in 4.2.1 and 4.6 in MH/T 1040-2011, and calculate the spray rate error according to formula (1). 5.3 Measurement of fog droplet coverage density and distribution uniformity Use an optical microscope, computer image analysis system or other professional instruments to observe the sampling piece, the measuring instrument used and the analysis The analysis software should meet the measurement and analysis requirements. The number of samples for testing on each sampling line should be no less than 30, and the measurement area of each sample should be no less than 1 cm2.Statistics According to formula (2) ~ formula (5), calculate the fog droplet coverage density and the coefficient of variation; or use professional equipment to directly read each sample And calculate the average coverage density and coefficient of variation. The coefficient of variation is used to express the uniformity of droplet distribution. 5.4 Measurement of droplet diameter and droplet spectrum width Measure the droplet diameter on each sampling line according to the method in 5.3, and calculate the median diameter according to the definition in 3.9; determine the droplet diameter The droplet diameter is divided into at least 20 grades. According to formula (6) ~ formula (8), calculate the volume of each level of droplet and the total volume of droplet. The volume of the droplets at all levels is accumulated in the order from small to large, and the cumulative value is found to be about 50% of the total volume of the droplets and the cumulative percentage. Use the interpolation method to calculate the volume median diameter according to formula (9). Or use professional equipment to directly read the number median diameter and volume median diameter. Calculate the ratio of the volume median diameter to the number median diameter (VMD/NMD), which can be used to express the droplet spectrum width.

6 report

The measurement data and results of the operation quality technical indicators should be recorded in the report form. The format of the report form is shown in Appendix C.

Appendix A

(Informative appendix) Droplet diameter of different spray objects According to the droplet diameter index parameters of different spray types in Table 1, the droplet diameter range of different spray objects is divided, see Table A.1. Note. Systemic refers to the characteristic that the medicament is absorbed into the plant body through the leaves, stems and roots of the plant and is transmitted to the affected part. B BC

Appendix B

(Informative appendix) The droplets of different spraying objects cover the droplets According to the droplet coverage density index parameters of different spray types in Table 1, the droplet coverage density range of different spray objects is divided, See Table B.1.

Appendix C

(Informative appendix) Report card Report format for measurement data and results of spray rate error, droplet coverage density and distribution uniformity, droplet diameter and droplet spectrum width See Table C.1 ~ Table C.3.

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