Industrial Files 1 Industrial Files 2 Industrial Files 3
Laws and Regulations
Standards
Chinese - English & English - Chinese Dictionary of Water and Wastewater, Water Treatment, Water Resources and Environmental Engineering
Chinese Glossary of Water Terminology
English Glossary of Water Terminology
Measures for the Administration on Foreign Investment in Commercial Fields
Foreign Trade Law of the People's Republic of China
Interim Measures for the Management of the Transfer of the State-owned Property Right of Enterprises
Amendment to the Measures for the Administrative Penalties for Environmental Protection
Regulations of Hefei Municipality on Protection for the Sources of Urban Drinking Water
Notice on Further Strengthening the Urban Water Saving and Guaranteeing the Safety of Water Supply
Measures for the Administration of Environmental Protection of Transport Construction Projects
Notice on Strengthening the Water Quality Monitoring of Rivers, Lakes and Reservoirs
Emergent Notice on Strengthening the Disinfection of Urban Sewage in SARS-Striken Areas
Notice on Printing and Distributing the Main Points of the Work on Water Resources 2003
Administrative Measure for the Standard of Sewage Charges Collection
Administrative Regulations on Foreign-Invested Enterprises Engaging in Urban Planning Services
Regulations on Sewage Charges Collection and Use
Measures for Hearing on Government Price Decisions
Interim Measures for Cost Price Monitoring of Key Products and Services
Law of the People's Republic of China on Environmental Impact Assessment
Implementation Rules and Regulations for Certification of Water-Saving Faucet
Implementation Rules and Regulations for Certification of Water-Saving Water Closet
Opinions on Promoting Industrialized Development of Urban Sewage and Garbage Treatment
Water Law of the People's Republic of China (the modified edition)
Regulations on the Implementation of the Trademark Law of the People's Republic of China
Measures for the Administration of Subsidy Fund for Foreign Investment in Environment Construction
Catalogue of Environmental Protection Equipment (Product) Encouraged by the State (the Second Batch)
Measures of the State for Occupation Health Standard
Regulations on Government Price Decisions Act(for Trial Implementation)
Trademark Law of the People's Republic of China
Regulations for the Implementation of the Law on Sino-foreign Equity Joint Ventures
Interim Regulations on Bid Evaluation Committee and Bid Evaluation Measures
Detailed Rules for the Implementation of the Law on Wholly Foreign-Owned Enterprises
Law of the People's Republic of China on Chinese-Foreign Equity Joint Ventures
Regulations on the Scope and Scale of Supervision and Management of Construction Projects
Law of the People's Republic of China on Chinese-Foreign Contractual Joint Ventures
Law of the People's Republic of China on Wholly Foreign-Owned Enterprises
Law of the People's Republic of China on Sino-Foreign Cooperative Enterprises
Law of the People's Republic of China on Foreign Capital Enterprises
Opinions on Strengthening the Work for Industrial Water Saving
Interim Measures for the Release of Invitations to bid
Regulations on the Bidding Scope and Scale of Construction Projects
Tendering and Bidding Law of the People's Republic of China
Contract Law of the People's Republic of China
Regulations on Water Quality of Urban Water Supply
Administrative Measures for Urban Water Supply
Water Law of the People's Republic of China
Price Law of the People's Republic of China
Law of the People's Republic of China on Partnership Enterprises
Measures on Liquidation Procedures for Foreign Investment Enterprises
Law of the People's Republic of China on Prevention and Control of Water Pollution
Rules for the Administration of Employment of Foreigners in China
Administrative Measures on Establishment of Overseas Investment Funds for Chinese Industries
Interim Measures for the Administration of Urban Water Reclamation Facilities
Regulations on Urban Water Supply
Administrative Rules Governing the Registration of Companies
Provisional Regulation of the People's Republic of China on Value-added Tax
Regulations on Exploitation, Utilizaiton and Protection of Urban Underground Water
Measures for the Implementation of Water Intaking Permit System
Administrative Regulations on the Qualification of Urban Water Supply Enterprises
Administrative Measures for Utilization of the Tank of Water Closet in Urban Buildings
Report on Further Strengthening the Work for Urban Water Saving
City Planning Law of the People's Republic of China
Environmental Protection Law of the People's Republic of China
Regulations on Pollution Prevention and Control in Conservation Areas of Drinking Water Sources
Regulations on Urban Water Saving
Measures Concerning Supervision of Environmental Protection of Sewage Treatment Facilities
Patent Law of the People's Republic of China (Amended)
Implementing Regulations of the Patent Law of the People's Republic of China
Policy on Technology of Urban Sewage Treatment and Pollution Prevention and Control
Administrative Measures for Water Functional Area
Outline of the National Ecological Environment Protection
The National Tenth Five-Year Plan for Environmental Protection
Catalogue of Environmental Protection Equipment (Product) Encouraged by the State (the First Batch)
Administrative Measures for Quota on Urban Water Use
Measures Concerning Supervision of Drinking Water Sanitation
Administrative Measures for Water Supply Price of Water Conservancy Projects
Interim Measures for Serious Water Pollution Accident Reporting
Measures for the Control of Water Intaking Permit
Administrative Regulations on Permit for Water Intaking Quality
The Administrative Regulations on the Work Safety of Construction Projects
Marine Environmental Protection Law of the People's Republic of China
Regulations for the Implementation of the Copyright Law of the People's Republic of China
Measures for the Administration of the Water Resources Proof of Construction Projects
Interim Provisions on Guiding the Orientation of Foreign Investment
Interim Regulations on Prevention and Control of Water Pollution in the Huaihe River Valley
PATENT LAW OF THE PEOPLE'S REPUBLIC OF CHINA
Implementing Regulations of the Patent Law of the People's Republic of China
Water Law of the People's Republic of China
Water Law of the People's Republic of China (the modified edition)
Trademark Law of the People's Republic of China
Regulations on the Implementation of the Trademark Law of the People's Republic of China
Law of the People's Republic of China on Prevention and Control of Water Pollution
Rules for the Administration of Employment of Foreigners in China
Administrative Measures on Establishment of Overseas Investment Funds for Chinese Industries
Foreign Trade Law of the People's Republic of China
Law of the People's Republic of China on Chinese-foreign Equity Joint Ventures
Law of the People's Republic of China on Chinese-Foreign Contractual Joint Ventures
Law of the People's Republic of China on Wholly Foreign-Owned Enterprises
Law of the People's Republic of China on Foreign Capital Enterprises
Detailed Rules for the Implementation of the Law on Wholly Foreign-Owned Enterprises
Regulations for the Implementation of the Law on Sino-foreign Equity Joint Ventures
Measures on Liquidation Procedures for Foreign Investment Enterprises
Law of the People's Republic of China on Partnership Enterprises
Administrative Rules Governing the Registration of Companies
Provisional Regulation of the People's Republic of China on Value-added Tax
Measures for the Administration on Foreign Investment in Commercial Fields
Law of the People's Republic of China on Sino-Foreign Cooperative Enterprises
Contract Law of the People's Republic of China
Environmental Protection Law of the People's Republic of China
Marine Environment Protection Law of the People's Republic of China
City Planning Law of the People's Republic of China
The Tendering and Bidding Law of the People's Republic of China
PRICE LAW OF THE PEOPLE'S REPUBLIC OF CHINA
Measures of Tianjin Municipality on Prevention and Control of Water Pollution
Measures of Anhui Province for Implementation of the Water Law of the People's Republic of China
Regulations of Lhasa Municipality on Urban Water Supply
Measures of Henan Province for Sewage Charges Collection and Use
Decision on Modifying the Regulations of Shanghai Municipality on the Administration of Watercourse
Decision on Modifying the Regulations of Shanghai Municipality on Water Drainage
Decision on Modifying the Regulations of Shanghai Municipality on Water Supply
Measures of Shaanxi Province for Water Saving
Regulations of Zhengzhou Municipality on Urban Environmental Sanitation
Franchise Operation of Urban Infrastructure Projects in Beijing
Measures of Hebei Province On Management of Municipal Public Utilities under Franchise
Regulations of Jiangsu Province on Water Resources (Revised in 2003)
Regulation of Zuzhou Municipality on Urban Water Drainage
Regulations of Liaoning Province on Protection of Underground Water Sources
Regulations of Inner Mongolia Autonomous Region on Protection of the Geological Environment
Regulations of Guiyang Municipality on the Bidding Scope and Scale of Construction Projects
Administrative Measures of Quzhou Municipality for Urban Sewage Treatment
Measures of Xinjiang Uygur Autonomous Region for the Administration of Urban Water Drainage
Administrative Measures of Hunan Province for Water Resources
Regulations of Chongqing Municipality on the Administration of the Garbage in Urban Water Areas
Regulations of Baotou Municipality on Environmental Protection
Regulations of Baotou Municipality on Water Resources
Administrative Measures of Yinchuan Municipality for Urban Water Supply and Water-Saving
Regulations of Wuhan Municipality on Urban Water Drainage
Regulations of Changsha Municipality on Urban Water Supply and Use
Administrative Regulations of Zhejiang Province on Water Resources
Measures of Chongqing Municipality on the Administration of Fire Control Facilities
Measures of Tianjin Municipality for Water Protection in Yellow River-to-Tianjin Diversion Project
Regulations of Beijing Municipality on Tendering and Bidding
Regulations of Guangdong Province on Protection of Water Quality of Dongjiang River System
Measures of Chongqing Municipality for Water Charges Collection of Water Conservancy Projects
Regulations of Beijing Municipality on the Bidding Scope and Scale of Construction Projects
Regulations of Fujian Province on Supervision of Water Affairs
Regulations of Beijing Municipality on Water Saving
Measures of Haikou Municipality for Urban Drainage and Sewage Treatment
Measures of Hainan Province for the Administration of Sewage Charges Collection and Use
Quota of Non-Industrial Water of Guiyang Municipality
Measures of Zhejiang Province for Urban Water Supply
Regulations of Guangdong Province on Protection of Water Quality of Zhujiang River Delta
Regulations of Yunan Province on Water Intaking Permit
Measures of Jiangsu Province for the Administration of Urban Sewage Treatment Charges
Measures of Qingdao Municipality for the Administration of Sewage Charges (Revised)
Administrative Regulations of Guiyang Municipality on Urban Water Saving
Measures of Chongqing Municipality for Pollution Prevention and Control of Drinking Water Sources
Measures of Jilin Province for Urban Water Supply
Regulations of Tianjin Municipality on Water Intaking Permit
Detailed Rules of Shanghai Municipality for the Implementation of Water Intaking Permit
Measures of Guangdong Province for Implementation of the Water Law of the People's Republic of China
Measures of Beijing Municipality Concerning Supervision of Drinking Water Sanitation
Administrative Regulations of Shanghai Municipality on Water Drainage
Regulations of Shangdong Province on Environmental Protection
Measures of Shenzhen Municipality for Transfer of Household Water Supply Facilities
Measures of Guangzhou Municipality for Urban Water Supply
Regulations of Shanghai Municipality on Water Supply
Measures of Shanghai Port for Preventing the Ships from Polluting the Water Areas
Regulations of Shenzhen Special Economic Zone for Urban Water Supply and Use
Measures of Jiangsu Province for the Administration of Urban Water Supply Resources
Regulations of Dalian Municipality on Urban Water Supply and Use
Measures of Tianjin Municipality for Implementation of the Regulations on Urban Water Supply
Regulations of Wuxi Municipality on Water Environment Protection
Regulations of Dalian Municipality on Water Resources
Regulations of Beijing Municipality on Administrative Penalties for Urban Water Waste
Measures of Shanghai Municipality for Water Saving
Measures of Jinan Municipality for Urban Tap Water Supply
Regulations of Anhui Province on Prevention and Control of Water Pollution in Huaihe River Valley
Measures of Hunan Province for Implementation of the Regulations on Urban Water Supply
Measures of Henan Province for Implementation of the Water Law of the People's Republic of China
Measures of Nanjing Municipality for the Administration of Urban Water Supply Resources
Regulations on Control of the Water Resources in Beijing
Regulations of Beijing Municipality on Urban Water Saving
Administrative Measures of Beijing Municipallity for Surcharge Collection on Overuse of Water
Administrative Measures of Shanghai Municipality for Urban Water Drainage Facilities
Mesures of Beijing Municipality for Water Balance Test of Water Consumption Units
Measures of Rewards of Beijing Municipality for Urban Water Saving
Provisional Regulations of Hunan Province on Environmental Protection
Detailed Rules of Zhangjiakou Municipality for the Administration of Urban Water Supply Price
Measures of Henan Province for Urban Water Supply Administrative Regulations of Zhengzhou Municipality on Water Resources
Regulations of Heilongjiang Province on Wetlands Protection
Measures of Urumqi Municipality for Urban Water Supply
Measures of Xiamen Municipality for Urban Water Supply
Administrative Regulations of Xiamen Municipality on Water Resources
Measures of Beijing Municipality for Reserve Fund Collection of Underground Water Resources
Regulations of Shanghai Municipality on Environmental Protection
Regulations of Shanghai Municipality on Fire Control
Measures of Lianyungang Municipality for Urban Water Drainage
Interim Measures of Nanjing Municipality for Urban Water Supply
Measures of Nanjing Municipality for Urban Water Supply and Use
Measures of Qingdao Municipality for the Administration of the Utilization of Urban Reclaimed Water
Measures of Shenzhen Special Economic Zone for Usage Charges Collection of Water Drainage Facilities
Interim Measures of Shenzhen Municipality for the Administration of
Measures of Shenzhen Municipality on Management of Public Utilities under Franchise
Regulations of Guangzhou Municipality on Monitoring of Urban Water Drainage
Regulations of Shenzhen Special Economic Zone on Protection for the Sources of Drinking Water
Regulations of Guangzhou Municipality on the Administration of Planned Water Supply and Water Saving
Measures of Guangzhou Municipality for Urban Sewage Charges Collection
Notice on Resiving the Discharge Standard of Water Pollutants for Paper Industry
Notice on Implementing the Medical Pollutants Discharge Standard
Reverse osmosis water treatment equipment
Reply on Relevant Issues concerning the Implementation of the Standards for Irrigation Water Quality
Water treatment chemical - -Poly aluminium chloride
Code for Seismic Design of Outdoor Water Supply, Sewerage, Gas and Heating Engineering
Code for Design of Building Water Supply and Sewerage
Code for Design of Industrial Recirculating Cooling Water
pH - Technical Requirements for Automatic Water Test Kits
Conductivity - Technical Requirements for Automatic Water Test Kits
Turbidity - Technical Requirements for Automatic Water Test Kits
DO - Technical Requirements for Automatic Water Test Kits
Permanganate Index - Technical Requirements for Automatic Water Test Kits
Ammonia Nitrogen - Technical Requirements for Automatic Water Test Kits
Total Nitrogen - Technical Requirements for Automatic Water Test Kits
Total Phosphorus - Technical Requirements for Automatic Water Test Kits
TOC - Technical Requirements for Automatic Water Test Kits
Discharge standard of pollutants for municipal wastewater treatment plant
The reuse of urban recycling water - - Water quality standard for ace-nic environment use
The reuse of urban recycling water - - Class ified standard
Agricultural irrigation equipment--Pressure losses in irrigation valves--Test method
Agricultural irrigation equipment--Manually operated small plastics valves
Agricultural irrigation equipment--Check valves
Agricultural irrigation equipment--Float type air release valves
Waterquality - Vocabulary - Part 3; Amendment 1
Water quality - Vocabulary - Part 8; Amendment 1
Water quality - Determination of dissolved bromate - Method by liquid chromatography of ions
Water quality - Sampling - Part 18: Guidance on sampling of groundwater at contaminated sites
Water quality - Guidance for determination of biodegradability in the marine environment
Automotive LPG steel cylinder multivalve
Water quality - Determination of mercury - Methods involving enrichment by amalgamation
Water quality - Sampling - Part 17: Guidance on sampling of suspended sediments
Water quality - Guidance on validation of microbiological methods
Water quality - Determination of the genotoxicity of water and waste water using the umu-test
Analysis method for oil-bearing waste water from marine petroleum development industry
Water quality - Determination of turbidity
Non-refillable cylinder valve for industry
Water quality - Determination of phenol index by flow analysis (FIA and CFA)
Tubeless valves-Part 1: Snap-in valves
Tyre valves for large core chamber
Tyre valve cores for large core chamber
Oily water separating equipment for machinery space bilges of ships
Water quality - Determination of mercury
Marine cast steel flanged stop valves
Marine cast steel flanged stop check valves
Marine cast steel flanged check valves
Water quality - Determination of acute lethal toxicity to marine copepods (Copepoda, Crustacea)
Water treatment chemicals--Polyacrylamide
Water quality - Determination of adsorbable organically bound halogens (AOX)
Water quality - Sampling - Part 16: Guidance on biotesting of samples
Hydraulic fluid power--Four-and five-port servovalves--Mounting suriaces
Hydraulic fluid power--Identification of valve ports,subplates,control devices and solenoids
Water quality - Spectrometric determination of phosphorus using ammonium molybdate (1998-08-01)
Water quality - Determination of chromium - Atomic absorption spectrometric methods
Water quality - Detection and enumeration of Legionella
Industrial--Process control valves Part 1: Control valve terminology and general considerations
Industrial-process control valves Part 5: Marking
Industrial-process control valves Part 7: Control valve data sheet
Standard for safety evaluation of equipment and protective materials in drinking water system
Hygienic safety evaluation for chemicals used in drinking water treatment
Tyre valves - Terms and definitions
Water quality - Determination of easily released sulfide
Water quality - Guide to analytical quality control for water analysis
Water quality - Vocabulary - Part 9: Alphabetical list and subject index
Water quality - Selection of tests for biodegradability
Water treatment chemicals--Hydrolyzed polymaleic anhydride
Terminal markings for valve device stacks and assemblies and for power convertor
Running result and the monitoring and testing of low-pressure boilers water-treatment equipment
Water quality - Vocabulary - Part 7
Water quality; Determination of ammonium; Potentiometric method
Water quality - Vocabulary - Part 2
Water quality; Determination of ammonium; Potentiometric method
Water quality - Determination of suspended solids by filtration through glass-fibre filters
Ductile iron products for sewage applications
Integrated wastewater discharge standard
Marine cast steel erect check valves
Water quality - Vocabulary - Part 6
Water quality - Vocabulary - Part 1
Water quality - Vocabulary - Part 5
Water treatment chemicals--Poly aluminium chloride
Water quality - Sampling - Part 12: Guidance on sampling of bottom sediments
General technique specifications for cylinder valves
Outlet connections and sizes for cylinder valves
Water quality - Determination of aluminium - Spectrometric method using pyrocatechol violet
Water quality - Determination of alkalinity - Part 2: Determination of carbonate alkalinity
Water quality - Examination and determination of colour
Cast iron and copper alloy ball valves
Face-to-face, centre-to-face, end-to-end and centre-to-end dimensions of valves--Buttwelding valves
Face-to-face, centre-to-face, end-to-end and centre-to-end dimensions of valves--Wafer valves
Face-to-face, centre-to-face, end-to-end and centre-to-end dimensions of valves--Female screw valves
Face-to-face, centre-to-face, end-to-end and centre-to end dimensions of valves--Mals screw valves
Water quality - Sampling - Part 3: Guidance on the preservation and handling of samples
Water quality - Determination of pH
Water quality - Determination of chromium(VI) - Spectrometric method using 1,5-diphenylcarbazide
Marine flanged cast steel over board stop check valve
Marine center-pivoted batterfly valves
Marine duo-eccentric-pivoted butterfly valves
Water quality; determination of cadmium by atomic absorption spectrometry
Water quality; sampling; part 7: guidance on sampling of water and steam in boiler plants
Hydraulic fluid power--Four-port directional control valves--Mounting surfaces
Marine cast iron flanged stop check valves
Marine flanged cast iron single arrangement exhaust stop box valve
Quick shutting valve for marine use
Water quality; determination of selenium; atomic absorption spectrometric method (hydride technique)
Fundamental technical requirements for large and medium inlet valves of hydraulic turbine
Water quality; vocabulary; part 3
Water quality; determination of permanganate index
Marine cast iron flanged lift check valves
Marine bronze flanged check valves
Marine cast iron flanged stop valves
Marine flanged cast iron single arrangement suction stop box valve
Marine flanged cast iron single arrangement suctio stop check box valve
Marine steel flanged steam pressure reducing valves
Marine cast iron flange dual-row stop valves-case
Marine bronze flanged stop valves
Marine bronze flanged stop check valves
Water quality; vocabulary; part 8
Water quality; vocabulary; part 4
Water quality; sampling; part 8: guidance on the sampling of wet deposition
Water quality; sampling; part 11: guidance on sampling of groundwaters
Ductile iron pipelines; rubber sealing rings for pipelines carrying potable water
Halon fire extinguishing systems performance requirements and test methods for selector valves
Halon fire extinguishing system performance requirements and test methods for check valves
Halon fire extinguishing systems performance requirements and test methods for valve actuators
Hydraulic fluid power--Code for identification of valve mounting surfaces
Safety valves for marine air vessel
General specification of hydraulic control valves for ship
Jet-pipe electrohydraulic servo valve
Pressure testing for general purpose valves
General purpose industrial valves - Cast iron swing check valves
Performance test for water treatment equipment--General rules
Shipbuilding and marine structures; filling connection for drinking water tanks; part 2: components
Water quality; measurement of gross beta activity in non-saline water
Water quality; measurement of gross alpha activity in non-saline water; thick source method
Water quality; sampling; part 10: guidance on sampling of waste waters
Water quality; sampling; part 9: guidance on sampling from marine waters
Water quality; determination of dissolved sulfide; photometric method using methylene blue
Pneumatic industrial process control valves
Water quality; determination of nitrogen; catalytic digestion after reduction with Devarda's alloy
Water quality; vocabulary; part 3; amendment 1
General specifications for marine piping valves and fittings
Water quality; sampling; part 2: guidance on sampling techniques
Oily water separating equipment
Polypropylene (PP) pipes and fittings for buried drainage and sewerage systems; specifications
Aircraft; self-propelled potable-water vehicle
Steel tubes for water and sewage
Water quality; sampling; part 6: guidance on sampling of rivers and streams
Water quality; determination of sulfate; gravimetric method using barium chloride
Water quality; determination of borate; spectrometric method using azomethine-H
Water quality; determination of dissolved oxygen; electrochemical probe method
Cardiac valve prostheses general technical specification
General purpose industrial valves - Marking
Metal valves for use in flanged pipe systems - Face-to -face and centre-to-face dimensions
Multi-turn valve actuator attachment
Part-turn valve actuator attachment
General requirements for industrial steel valves
General purpose industrial valves - Specification of copper alloy castings
General purpose industrial valves - Specification of flake graphite iron castings
General purpose industrial valves - Specification of spheroidal graphite iron castings
General purpose industrial valves - Specification of carbon steel forgings
General purpose industrial valves - Diaphragm valves
General purpose industrial valves - Iron plug valves
Safety valves - General requirements
Performance test methods for safety valves
General specification for pressure reducing valves
Methods of performance test for pressure reducing valves
Pilot-operated reducing valves
General purpose industrial valves - Specification of carbon steel castings
General purpose industrial valves - Specification of austenitic steel castings
General purpose industrial valves - Flanged iron gate valves
General purpose industrial valves - Casting iron globe valves and lift check valves
General purpose industrial valves - Flanged and butt-weld steel gate valves
General purpose industrial valves - Flanged steel globe valves and lift check valves
General purpose industrial valves - Steel swing check valves
General purpose industrial valves - Flanged and butt-weld end steel ball valves
General purpose industrial valves - Flanged and wafer butterfly valves
Water quality; determination of tritium activity concentration; liquid scintillation counting method
Marine cast steel flanged stop valves
Marine cast steel flanged lift check valves
Metal valves for use in marine flanged pipe systems--Face-to-face and centre-to-face dimensions
Small craft waste water fittings
Water quality; determination of the chemical oxygen demand
General specification of electro-hydraulic servo valve for ship
Specification of the steam converting valve for fossil power stations
Specification of control valves for fossil power stations
Hot rolled steel sheets for compressor valves
Marks for marine piping valves and fittings
Marine sewage treatment system specification
Water treating chemicals--Ferrous sulphate
Water treatment chemicals--Polyacrylic acid
Hygienic standard for water consumption in rural areas
Water quality; determination of nitrate; part 3: spectrometric method using sulfosalicylic acid
Water quality; general guide to the enumeration of micro-organisms by culture
Internal combustion engine--Technical requirements for valve springs
Water quality; determination of iron; spectrometric method using 1,10-phenanthroline
Drinking water for survival craft
Hygienic standard for beryllium in drinking water sources
Hydraulic fluid power--Two-port slip-in cartridge valves--Cavities--Technical requirements
Water quality; Sampling; Part 4 : Guidance on sampling from lakes, natural and man-made
Methods for the measurement of direct interelectrode capacitances of electronic tubes and valves
Water quality; Determination of ammonium; Distillation and titration method
Water quality; Test for inhibition of oxygen consumption by activated sludge
Water quality; Determination of calcium and magnesium; Atomic absorption spectrometric method
Water quality; Determination of manganese; Formaldoxime spectrometric method