Standards

DB50/T 576-2014 Abolished

DB50/T 576-2014 Rules for the Inspection and Evaluation of Appearance Quality of Water Resources and Hydropower Engineering

This standard applies to the inspection and evaluation of the engineering appearance quality of large and medium-sized new, renovated, expanded, and reinforced water conservancy and hydropower construction projects within the jurisdiction of Chongqing City. The inspection and evaluation of the engineering appearance quality of small-scale water conservancy and hydropower construction projects can be implemented with reference to this standard.

Publish Date: 2014-12-30

DB50/T 261-2014 Abolished

DB50/T 261-2014 DB50/T 261-2014 Kitchen Knife

This standard specifies the product classification, requirements, test methods, inspection rules, marking, packaging, transportation, and storage of kitchen knives. This standard applies to kitchen knives made from materials such as carbon composite steel, carbon stainless composite steel, and stainless steel.

Publish Date: 2014-02-01

DB50/T 264-2014 Abolished

DB50/T 264-2014 DB50/T 264-2014 Steel Shovel

This standard specifies the types and specifications, requirements, test methods, inspection rules, marking, packaging, transportation, and storage of steel shovels. This standard applies to steel shovels made from high-quality carbon steel and high-quality carbon structural steel hot-rolled thin steel plates and steel strips as raw materials.

Publish Date: 2014-02-01

DB50/T 540-2014 Abolished

DB50/T 540-2014 Micro-electronic thermal mass gas flow meter

This standard applies to the measurement of the mass, volume, and energy of gas flow in closed pipelines with a working pressure not exceeding 50kPa, where the type of gas used is artificial gas, natural gas, or liquefied petroleum gas.

Publish Date: 2014-01-30

DB50/T 541-2014 Abolished

DB50/T 541-2014 Wet gas flow meter

This standard applies to the production and acceptance of wet gas flow meters.

Publish Date: 2014-01-30

DB50/T 546-2014 Abolished

DB50/T 546-2014 The method of testing sand equivalent instrument

This standard specifies the terms and definitions, requirements, and testing methods for sand equivalent meters. This standard is applicable to the measurement performance testing of sand equivalent meters designed and manufactured in accordance with JTG E42-2005. The measurement performance testing of other instruments with similar structures or applications can refer to this standard.

Publish Date: 2014-01-24

DB50/T 505-2013 Abolished

DB50/T 505-2013 Measuring discharge flow rate of open channel channel box flow meter for technical specifications

This standard specifies the terms and definitions, working principles, technical requirements, and inspection items for measuring the discharge flow and cumulative quantity using open-channel weir flowmeters as measuring instruments. This standard is applicable to the most commonly used open-channel weir flowmeters (rectangular thin-walled weirs and Bachlet weirs) in wastewater discharge measurement, as well as open-channel flowmeters equipped with water level sensors or water level flow display instruments in conjunction with weir flowmeters.

Publish Date: 2013-11-15

DB50/T 504-2013 Abolished

DB50/T 504-2013 The pressure differential integration microflow metering compensation table-front valve detection method

This standard specifies the terms and definitions, overview, technical requirements, testing conditions, testing items and methods, processing of testing results, and re-inspection time intervals for pressure differential integral micro-flow metering compensation valves before meters. This standard is applicable to the testing of pressure differential integral micro-flow metering compensation valves before meters with a nominal diameter of DN (15~20) mm.

Publish Date: 2013-11-15

DB50/T 508-2013 Abolished

DB50/T 508-2013 The on-site testing method for high-voltage measurement devices for AC electricity with a rated voltage of 35kV and below

This standard specifies the terms and definitions, inspection items, technical requirements, inspection conditions, inspection methods, processing of inspection results, and inspection cycles for high-voltage metering devices for AC power of 35kV and below. This standard applies to the on-site inspection of high-voltage metering devices for AC power of 35kV and below with a rated frequency of 50Hz before and during their operation.

Publish Date: 2013-11-15

DB50/T 503-2013 Abolished

DB50/T 503-2013 Determination of Content of Diisopropyl Peroxide in Paint Industry (Redox Capacity Method)

This standard specifies the safety warnings, principles, reagents, instruments, analysis steps, result calculation, and allowable errors for determining the content of dibenzoyl peroxide by the redox capacity method. This standard is applicable to the analysis of the main content of dibenzoyl peroxide used in the coatings industry.

Publish Date: 2013-11-15

DB50/T 501-2013 Abolished

DB50/T 501-2013 Ordinary work protective clothing

This standard specifies the general requirements, inspection (testing) methods, inspection classification rules, and all technical characteristics such as marking, packaging, transportation, and storage for ordinary protective workwear. This standard applies to ordinary protective clothing produced with woven textiles as the main fabric for industrial workers to use under normal conditions. This standard does not apply to clothing with special functions.

Publish Date: 2013-11-01

DB50/T 500-2013 Abolished

DB50/T 500-2013 DB50/T 500-2013 Industrial Park Investment Promotion Work Management Specification

This standard stipulates the management responsibilities, investment promotion principles, enterprise admission conditions, and investment promotion workflow for investment promotion in industrial parks. This standard applies to investment promotion activities carried out by the management institutions of industrial parks.

Publish Date: 2013-06-01