GB/T 34532-2017 in English

VALID

Coking wastewater - Determination of ammonia nitrogen content - Formaldehyde method

Issued on:2017-10-14
Implemented on:2018-05-01
File Format:PDF
Delivery:Via email within 1~3 business days

Price(USD)： $100.00
$97.00

Standard No:	GB/T 34532-2017
Document status:	VALID
Title in English:	Coking wastewater - Determination of ammonia nitrogen content - Formaldehyde method
Title in Chinese:	焦化废水氨氮含量的测定甲醛法
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 1~3 business days
Issued on:	2017-10-14
Implemented on:	2018-05-01
ICS Classification:	71.080-Organic chemicals
Chinese Classification:	G15-Organic chemicals in general
Professional Classification:	GB-National Standard
Related Keywords:	determination method formaldehyde determination method formaldehyde method formaldehyde method introduction ammonia nitrogen content
Related Topics:	Hydrazine Ammonia nitrogen Formaldehyde standard formaldehyde Aldehyde Content Method Wastewater ammonia nitrogen Nitrogen content determination Ammonia+ Formaldehyde effect Coke Nitrogen Content Ammonia content in water waste water tar Hydrazine + ammonia nitrogen Ammonia nitrogen Wastewater Detarring Ammonia nitrogen content Ammonia nitrogen measurement Determination method of ammonium formate tar wastewater Aldehyde and ketone content determination method Hydrazine wastewater Wastewater toluene content Determination of ammonia nitrogen Ammonia nitrogen determination Naphthalene content in ammonia water Determination method of waste water in waste water Ammonia nitrogen determination method Content standard wastewater Determination of ammonia nitrogen content Ammonia nitrogen measurement Liquid phase method formaldehyde content Determination of ammonia salt by formaldehyde method Formaldehyde content detection method Formaldehyde content analysis Wastewater ammonia nitrogen Ammonia nitrogen removal from wastewater Wastewater Zinc Content waste water ammonia Water Nitrogen Oxygen Content Horiba ammonia nitrogen Ammonia method Ammonia content Ammonia nitrogen in wastewater Ammonia Nitrogen Rapid Determination Method Ammonia nitrogen content Nitrogen content in water Nitrogen content standard Ammonia nitrogen content in water How to detect the presence or absence of ammonia Test method for formaldehyde in aqueous phase Determination of ammonia content in ammonia water Nitrogen content in water Aldehyde Content Determination Method Method for Determination of Ammonia Nitrogen Coke Nitrogen Content Determination of ammonia nitrogen content in water The Past and Present of Ammonia Nitrogen Methanol content in wastewater Method for Determination of Ammonia Nitrogen in Wastewater Ammonia nitrogen definition Ammonia-nitrogen ratio Method for Determination of Ammonia Nitrogen in Wastewater Ammonia nitrogen Ammonia nitrogen content Method for Determination of Ammonia Nitrogen in Wastewater Ammonia nitrogen definition Dichloromethane content in wastewater Determination of wastewater content Measuring nitrogen content in water wastewater nitrogen Ammonia nitrogen in wastewater Ammonia nitrogen content in water Wastewater Ammonia Nitrogen Method Nitrogen transformation in water Determination of ammonia nitrogen content in water Ammonia Nitrogen Determination Method Chlorine Hydrazine and ammonia nitrogen Ammonia ammonia wastewater Ammonia nitrogen zero Does it contain formaldehyde? 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《GB/T 34532-2017焦化废水氨氮含量的测定甲醛法》由TC469（全国煤化工标准化技术委员会）归口，TC469SC3（全国煤化工标准化技术委员会炼焦化学分会）执行，主管部门为国家标准化管理委员会。

Introduction

1. Background and purpose of the standard

GB/T 34532-2017 specifies the determination method of ammonia nitrogen content in coking wastewater, which is tested by formaldehyde method. This standard is applicable to the quantitative analysis of ammonia nitrogen in coking wastewater samples, and the determination range is between $10.0\mathrm{mg/L}{\sim}3500.0\mathrm{mg/L}$.

2. Comparison of standard frameworks

Standard items	GB/T 34532—2017	HJ 537—2009 (reference)
Determination method	Formaldehyde method	Distillation-neutralization titration method
Scope of application	Coking wastewater	Various water samples
Determination scope	$10.0\mathrm{mg/L}{\sim}3500.0\mathrm{mg/L}$	$0.002\mathrm{mg/L}{\sim}1.0\mathrm{mg/L}$

3. Implementation Suggestions and Notes

Step Description:

Choose the appropriate sample volume according to the sample concentration, refer to the following table:

Ammonia nitrogen content/(mg/L) Sample volume/(mL)

10.0~1 000.0 25.0

>1 000.0~3 500.0 10.0
Add 20 mL sulfuric acid solution and 25 mL water to a conical flask and boil for 2-3 minutes.
After cooling, add methyl red indicator for preliminary titration and record the volume of sodium hydroxide solution consumed.
Then add 15 mL neutral formaldehyde solution, add phenolphthalein indicator solution, and titrate with standard sodium hydroxide solution to the pink endpoint.

Notes:

Make sure all reagents are analytically pure and use distilled water of grade 3 or above that meets the requirements of GB/T 6682.
Avoid skin contact with the test solution during the experiment, and the waste liquid needs to be recycled to meet environmental protection requirements.
During the titration process, the liquid addition speed must be strictly controlled to ensure accurate color changes.

More samples: JC/T 2453-2018 JGJ 94-2008 GB 50021-2001(2009)

Sample only — not a preview of GB/T 34532-2017

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