GB/T 6909-2008 in English

SUPERSEDED

Analysis of water used in boiler and cooling system - Determination of hardness

Issued on:2008-04-01
Implemented on:2008-09-01
File Format:PDF
Delivery:Via email within 1~3 business days

Price(USD)： $120.00
$117.00

Standard No:	GB/T 6909-2008
Document status:	SUPERSEDED
Superseded by:	GB/T 6909-2018 Analysis of water used in boiler and cooling system—Determination of hardness
Superseded on:	2019-01-01
Title in English:	Analysis of water used in boiler and cooling system - Determination of hardness
Title in Chinese:	锅炉用水和冷却水分析方法硬度的测定
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 1~3 business days
Issued on:	2008-04-01
Implemented on:	2008-09-01
Superseding:	GB/T 6909.1-1986 Methods for analysis of water for boiler and for cooling--The determination of hardness--High hardness GB/T 6909.2-1986 Methods for analysis of water for boiler and for cooling; The determination of hardness; Low hardness
ICS Classification:	71.040.40-Chemical analysis
Chinese Classification:	G76-Basic standards and general methods for water treatment agent
Professional Classification:	GB-National Standard
Related Keywords:	natural water demineralized water feed water samples water hardness measurement range
Related Topics:	, water analysis Boiler Water and Cooling Water Analysis Methods water analysis Cooling water Hardness analysis GB/T 6909-2008 water analysis method boiler cooling water GB/T 6909-2018 gb/t+6909 How to use the moisture analyzer gb/t6909-2008 cooling water method Hardness analysis GB/T6909-2018 Common Methods for Moisture Determination Commonly used methods for moisture determination gb/t6909 water analysis Common Moisture Determination Methods boiler hardness water Analytical test water boiler water boiler water GB/T 6909 2018 gb6909 Analytical methods for boiler water and cooling water - Determination of sulfates - Barium chromate photometric method Common methods for moisture determination Commonly used methods for determining moisture Three methods commonly used in moisture determination Determination of water hardness Commonly used moisture determination methods Common methods of moisture determination What methods are commonly used for moisture determination hard water cooling GB/T6909-2008 Hardness analysis GBT6909 GB/T 6909-2008 GB/T 6909-2018 use water Crystallization Gradient Furnace DR6000 measures water hardness Analysis of Experimental Error in Water Hardness Determination GB/T6909 download Error analysis of water hardness measured by edta titration method Methods for testing water hardness of industrial boilers Method for determination of volatile phenol in boiler water Boiler water and cooling water analysis methods zinc reagent spectrophotometric curve How to measure hardness in water Method for determination of chloride in boiler water Accurate method for determining water hardness Manual determination method of boiler flue gas blackness Conductivity method for measuring water hardness Tablet Hardness Analysis Method Calculation method for cooling water of resistance furnace Method for determination of electrical conductivity of boiler water and cooling water Cooling water testing Scope of application of boiler water and cooling water analysis methods Boiler water hardness test method Wastewater hardness testing method Resistance furnace cooling water consumption The method of measuring water activity is National standard for water hardness detection method Water hardness testing method Ammonia concentration analysis method Water hardness testing method Methods used for moisture determination in the third phase Simulation analysis method of heating furnace Standards and methods for boiler water hardness testing National standard water hardness measurement method What are the methods for measuring water hardness? How to measure water hardness Determination method and calculation formula of water hardness

《GB/T 6909-2008锅炉用水和冷却水分析方法　硬度的测定》由TC63（全国化学标准化技术委员会）归口，TC63SC5（全国化学标准化技术委员会水处理剂分会）执行，主管部门为中国石油和化学工业联合会。
本标准适用于天然水、冷却水、软化水、H型阳离子交换器出水、锅炉给水水样硬度的测定。本标准同时代替ＧＢ／Ｔ６９０９．１―１９８６《锅炉用水和冷却水分析方法　硬度的测定　高硬度》和ＧＢ／Ｔ６９０９．２―１９８６《锅炉用水和冷却水分析方法　硬度的测定　低硬度》。
本标准与ＧＢ／Ｔ６９０９．１―１９８６和ＧＢ／Ｔ６９０９．２―１９８６相比，技术上没有差异，只是将ＧＢ／Ｔ６９０９．１―１９８６和ＧＢ／Ｔ６９０９．２―１９８６进行了合并。

Scope

This standard is applicable to the determination of the hardness of natural water, cooling water, demineralized water, H-type cation exchanger effluent, and boiler feed water samples. When chrome black T is used as the indicator, the hardness measurement range is 0.1mmol/L～5mmol/L. When the hardness exceeds 5mmol/L, the sampling volume can be appropriately reduced and diluted to 100ml for measurement. When acid chrome blue K is used as the indicator , the hardness measurement range is 1μmol/L～100μmol/L.

More samples: JGJ 94-2008 NB/T 47013.2-2015 QC/T 942-2021

Sample only — not a preview of GB/T 6909-2008

Loading PDF document...

Error loading PDF. Please make sure the file is valid and try again.

We also recommend

GB/T 32116-2015 in English

Determination of total organic carbon(TOC) in industrial circulating cooling water
2015-10-09
GB/T 37883-2019 in English

Determination of chromium,cadmium,lead and arsenic in water treatment chemicals—Inductively coupled plasma atomic emission spectrometry
2019-08-30
GB/T 26322-2010 in English

Examination of nitrite bacteria in industrial circulating cooling water—MPN test
2011-01-14
GB/T 43098.1-2023 in English

Analysis of water treatment chemicals—Part 1: Determination of phosphorus
2023-09-07
GB/T 13689-2007 in English

Water for industrial circulating cooling system and boiler—Determination of copper
2007-10-17
GB/T 15452-2009 in English

Industrial circulating cooling water - Determination of calcium and magnesium - EDTA titration method
2009-05-18
GB/T 20780-2006 in English

Industrial circulating cooling water - Determination of carbonate alkalinity
2006-12-29
GB/T 6904-2008 in English

Water used in industrial circulating cooling system and boiler - Determination of pH
2008-04-01
GB/T 16632-2019 in English

Determination of scale inhibition performance of water treatment chemicals—Calcium carbonate precipitation method
2019-08-30
GB/T 14636-2021 in English

Determination of calcium and magnesium in industrial circulating cooling water and scale—Atomic absorption spectrometric method
2021-08-20