SJ/T 11654-2016General Specification for Solid State Disk (English PDF)

Foreword

This standard is prepared according to the provisions specified in "Directives for

Standardization - Part 1. Structure and Drafting of Standards" (GB/T 1.1-2009).

This standard was proposed by and is under the jurisdiction of The Ministry of Water

Resources of the People's Republic of China.

This standard was approved by. The Ministry of Water Resources of the People's Republic of

China.

This standard was presided by. Department of Rural Water Resources for the Ministry of

Water Resources of the People's Republic of China.

This standard shall be interpreted by. Department of Rural Water Resources for the Ministry

of Water Resources of the People's Republic of China.

Chief development organization of this standard. China Irrigation and Drainage Development

Center.

Participating development organizations of this standard. China Institute of Water Resources

and Hydropower Research, China Agricultural University, Farmland Irrigation Research

Institute of The Ministry of Water Resources of the People's Republic of China, Wuhan

University, and Beijing Water Resources and Hydropower Technique Center.

Publishing and issuing organization of this standard. China Water Power Press.

Chief drafting staffs of this standard. Yao Bin, Gong Shihong, Li Guangyong, Zhai Guoliang,

Guo Zhixin, Wang Liuyun, Dong Wenchu, and Tian Jinxia.

Review conference technical principal of this standard. Xu Maoyun.

Stylistic rules and layout format examiner of this standard. Cao Yang.

INDUSTRY STANDARD

OF THE PEOPLE'S REPUBLIC OF CHINA

Basic Parameters and Technical Requirements for

Irrigation Filters

1 Scope

This standard specifies basic parameters and technical requirements for screen filters,

centrifugal filters (hydro-cyclone sand separators), sand media filters and disc filters.

2 Normative References

The following referenced documents are indispensable for the application of this document.

For dated reference, only the edition cited applies. For undated references, the latest edition of

the normative document (including any amendment) applies.

GB 150 "Steel Pressure Vessels"

GB/T 2828 "Sampling Procedures and Tables for Lot-by-lot Inspection by Attributes

(Apply to Inspection of Successive Lots or Batches)"

GB/T 7306.1 Pipe Threads with 55 Degree Thread Angle Where Pressure-tight Joints

Are Made on the Threads - Part 1. Parallel Internal and Taper External Threads (eqv

ISO 7-1. 1994)

GB/T 7306.2 Pipe Threads with 55 Degree Thread Angle Where Pressure-tight Joints

Are Made on the Threads - Part 2. Taper Internal and External Threads (eqv ISO 7-1.

1994)

GB/T 9112~9124 "Steel Pipe Flanges"

GB/T 18690.2 "Agricultural Irrigation Equipment - Filters - Strainer-type Filters"

GB/T 18690.3 "Agricultural Irrigation Equipment - Filters - Automatic Self-cleaning

Strainer-type Filters"

JB/T 2932 "Specification for Water Treatment Equipment"

3 Terms and Definitions

3.1

Filtration

The process to remove impurities possibly blocking the irrigation system from water.

3.2

Filter media

Porous and penetrable substances or materials for intercepting impurities in water.

3.3

Filter element

The assembly installed in the filter and used for intercepting and separating impurities in

water.

3.4

Filter housing

The container for containing filter media or filter element.

3.5

Screen filter

The filter regarding screen as the filter media.

3.6

Hydro-cyclone sand separator centrifugal separation

Also known as hydro-cyclone sand separator, i.e. the filter for separating solid particles from

water by way of cyclone.

3.7

Sand media filter

The filter regarding naturally or artificially synthesized sand or gravel as the filter media.

3.8

Disc filter

The filter regarding overlapped plastic sheet with fine groove on the surface as the filter

Flushing control system

The system for controlling filter flushing in accordance with the combination of one or

several physical quantities like pressure drop, filtration time and filtration water volume.

3.17

Flushing pressure differential

The artificial pressure differential between upstream and downstream in case of starting filter

flushing cycle.

3.18

Minimum working pressure

The minimum working pressure that can ensure the filter to exert normal function.

3.19

Flushing water volume

The water volume discharged from the filter in one flushing process.

4 Classification

5 Model

7 Basic Requirements