17.120.20 明渠中流量的测量 标准查询与下载



共找到 565 条与 明渠中流量的测量 相关的标准,共 38

Specifies a method for the estimation of subcritical flow of clear water in smooth, essentially horizontal, straight open channels with a vertical drop and discharging freely. Gentle positive slopes not greater than 1 in 2000 are admissible. Covers channels with the following types of cross-section, the nappe being confined: a) trapezoidal; b) triangular; c) parabolic; d) circular.

Measurement of liquid flow in open channels by weirs and flumes; End depth method for estimation of flow in non-rectangular channels with a free overfall (approximate method)

ICS
17.120.20
CCS
P12
发布
1984-12
实施

Gives functional requirements of sounding and suspension equipment used in the direct measurement of depth and velocity of flow in open channels, including the collection of sediment samples.

Measurement of liquid flow in open channels - Measuring instruments and equipment - Recommendations for direct depth sounding and suspension equipment

ICS
17.120.20
CCS
N12
发布
1983-12-30
实施
1983-12-30

Etched-stem liquid-in glass thermometer

ICS
17.120.20
CCS
发布
1983-12-19
实施

이 규격은 전체 담금으로 측정하는 온도 범위가 -30도 - +360도이며, 액체를 봉입한

Etched-stem liquid-in glass thermometer

ICS
17.120.20
CCS
N11
发布
1983-12-19
实施
1983-12-19

Determination of concentration or density of Suspended and deposited sediment in water bodies by Radiometric Methods

ICS
17.120.20
CCS
发布
1983-10
实施

Hydrometry — Stream gauging — Part 1: Fieldwork

ICS
17.120.20
CCS
发布
1983-10
实施

Hydrometry — Stream gauging — Part 2: Computation of discharge

ICS
17.120.20
CCS
发布
1983-10
实施

Hydrometry — Low cost baffles to aid fish passage on triangular profile gauging weirs

ICS
17.120.20
CCS
发布
1983-10
实施

Liquid flow measurement in open channels — Cup-type and propeller-type current-meters — Amendment 1

ICS
17.120.20
CCS
发布
1983-10
实施
1983-10

Liquid flow measurement in open channels by weirs and flumes. End-depth method for estimation of flow in rectangular channels with a free overfall.

ICS
17.120.20
CCS
A52
发布
1983-09-01
实施
1983-09-16

Water flow measurement in open channels using thin-wall weir.

ICS
17.120.20
CCS
A52
发布
1983-09-01
实施
1983-09-16

Specifies functional requirements of sounding and suspension equipment used in the direct measurement of depht and velocity of flow in open channels, including the collection of sediment samples. Does not apply to indirect methods such as echo sounding. This second edition cancels and replaces the first edition (1975).

Liquid flow measurement in open channels; Direct depth sounding and suspension equipment

ICS
17.120.20
CCS
N12
发布
1983-08
实施

Deals with the measurement of flow in rivers and artificial channels under steady or slowly varying flow conditions, using certain types of standing-wave (or critical depth) flumes. An annex gives the guidelines for the selection of weirs and flumes for the measurement of the discharge of water in open channels.

Liquid flow measurement in open channels; Rectangular, trapezoidal and U-shaped flumes

ICS
17.120.20
CCS
P12
发布
1983-07
实施

Summarizes the results of investigations of the total error in measurements of flow by velocity-area methods. Describes the procedure used and types of errors (section one), and gives recommendation for the collection of data for investigations of errors (section two) with a view to supplementing the information given in ISO 1088.

Liquid flow measurement in open channels; Velocity-area methods; Investigation of total error

ICS
17.120.20
CCS
P12
发布
1983-07
实施

Liquid flow measurement in open channels — Round-nose horizontal crest weirs

ICS
17.120.20
CCS
发布
1982-12-01
实施

Liquid flow measurement in open channels — Flat-V weirs

ICS
17.120.20
CCS
发布
1982-11-01
实施

Liquid flow measurement in open channels — Dilution methods for measurement of steady flow — Part 3: Constant rate injection method and integration method using radioactive tracers

ICS
17.120.20
CCS
发布
1982-09-01
实施

Liquid flow measurement in open channels — Part 2: Determination of the stage-discharge relation

ICS
17.120.20
CCS
发布
1982-06
实施
1982-06

Liquid flow measurement in open channels — Part 1: Establishment and operation of a gauging station

ICS
17.120.20
CCS
发布
1981-10-01
实施

Specifies the installation, head measurement and assessment of the accuracy of discharge formulae for 2 types of weir - rectangular thin-plate and triangular notch thin-plate weirs. Also covers the assessment of the accuracy of discharge measurement.

Methods of measurement of liquid flow in open channels - Weirs and flumes - Method using thin-plate weirs

ICS
17.120.20
CCS
P12
发布
1981-08-31
实施
1981-08-31



Copyright ©2007-2022 ANTPEDIA, All Rights Reserved
京ICP备07018254号 京公网安备1101085018 电信与信息服务业务经营许可证:京ICP证110310号