LY/T 1343-2014 English PDF

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
LY/T 1343-2014	239	Add to Cart	2 days	Regulations of apparatus performance on tree seed testing	Obsolete
LY/T 1343-1999	359	Add to Cart	3 days	Regulations of apparatus performance for tree seed testing	Obsolete

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Basic data

Standard ID: LY/T 1343-2014 (LY/T1343-2014)
Description (Translated English): Regulations of apparatus performance on tree seed testing
Sector / Industry: Forestry Industry Standard (Recommended)
Classification of Chinese Standard: B61
Classification of International Standard: 65.020.20
Word Count Estimation: 6,660
Date of Issue: 8/21/2014
Date of Implementation: 12/1/2014
Older Standard (superseded by this standard): LY/T 1343-1999
Quoted Standard: GB 2772
Regulation (derived from): State Forestry Bulletin No. 12 2014
Issuing agency(ies): State Forestry Administration
Summary: This standard specifies the use of forest tree seed testing equipment, infrastructure and performance requirements. This standard applies to tree seed quality testing equipment and technical conditions.

LY/T 1343-2014: Regulations of apparatus performance on tree seed testing

---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.
Regulations of apparatus performance on tree seed testing ICS 65.020.20 B61 People's Republic of China Forestry Industry Standard Replacing LY/T 1343-1999 Forest seed testing equipment technical conditions Published on.2014-08-21 2014-12-01 implementation State Forestry Administration released

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. Please note that some of the contents of this document may involve patents. Publication of this document The organization is not responsible for identifying these patents. This standard replaces LY/T 1343-1999 "Technical Conditions for Forest Seed Testing Instruments". This standard has been modified as follows. --- Revised the regulations on the use, basic structure and technical conditions of the instrument, including. sampler use, technical conditions, sample separator Way, basic structure, technical conditions, basic structure of germination box, technical conditions, oven use, basic structure, technical conditions, etc.; --- Increased electronic balance and incubator items; --- Removed the net type, inspection mirror and seed inspection necessary equipment, optional instrument items. This standard is under the jurisdiction of the National Forest Seed Standardization Technical Committee (SAC/TC115). This standard was drafted. China Forestry Research Institute, Nanjing Forestry University, Beijing Forestry University, Yunnan Forest Seedling Station, Gan Sustained forest seedlings workstation. The main drafters of this standard. Li Qingmei, Shen Yongbao, Gao Weidong, Peng Yudeng, Li Jiping, Wang Sang. The previous versions of the standard replaced by this standard are. ---LY/T 1343-1999. Forest seed testing equipment technical conditions

1 Scope

This standard specifies the use, basic structure and performance requirements of forest seed testing equipment. This standard applies to the technical conditions of the instrument for quality inspection of forest seeds.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article. Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB 2772 forest seed inspection procedures

3 sampler

3.1 Use In the implementation of GB 2772 for forest seed sampling, it is used for the extraction of the first sample of bagged small seeds. 3.2 Basic structure It is a metal tube with a pointed tip, a tube inner diameter of 10mm~14mm, and a pointed length of 60mm. There is a long oval hole near the tip. tube The length should be able to reach the center of the seed bag. 3.3 Performance requirements The tube is smooth and has no edges and corners. The tip and the body are tightly connected and the transition is gentle.

4 sampler

4.1 Cone Spectrometer 4.1.1 Use When performing GB 2772 for forest seed sampling, the sample to be taken from the mixed sample or the sample to be taken from the sample to be sent is taken. Product, suitable for seeds with high mobility. 4.1.2 Basic structure It consists of a funnel, a funnel bottom flap, a cone and a partition that divides the seed into two outlets. 4.1.3 Performance requirements a) The surface of the cone is smooth, the tip of the cone and the center of the funnel are on a vertical line, and the movable switch at the bottom of the funnel is flexible and tight. b) The weight error of the two seeds passing through the sampler shall not exceed 5% of the average weight of the two seeds. ......

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