GB/T 16632-2019 in English

VALID

Determination of scale inhibition performance of water treatment chemicals—Calcium carbonate precipitation method

Issued on:2019-08-30
Implemented on:2020-07-01
File Format:PDF
Delivery:Via email within 1~3 business days

Price(USD)： $90.00
$88.00

Standard No:	GB/T 16632-2019
Document status:	VALID
Title in English:	Determination of scale inhibition performance of water treatment chemicals—Calcium carbonate precipitation method
Title in Chinese:	水处理剂阻垢性能的测定碳酸钙沉积法
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 1~3 business days
Issued on:	2019-08-30
Implemented on:	2020-07-01
Superseding:	GB/T 16632-2008 Determination of scale inhibition performance of water treatment agents - Calcium carbonate precipitation method
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:	water treatment chemicals calcium carbonate precipitation method introduction technical background calcium carbonate supersaturated calcium carbonate solution circulating water system cooling water systems
Related Topics:	water antiscalant Determination of scale inhibition performance of antiscalants for desalination membranes Artificial concentrated seawater calcium carbonate deposition method GB/T 16632-2008 gb/t16632 Antiscalant Performance of Membrane Antiscalants seawater calcium carbonate Calcium Carbonate Deposition Method for Determination of Scale Inhibition Performance of Water Treatment Agents Excellent descaling performance Membrane antiscalant performance Determination of calcium in water Calcium reagent Carbon deposition calcium carbonate hemihydrate Impedance processing Water treatment scaling Water treatment material calcium carbonate What is the scale? Antiscalant Test calcium carbonate deposition GB/T16632-2008 GBT16632 GBT16632-1996 GB/T 16632-2008 GB/T 16632-2019 Calcium Sulfate Antiscalant Water side fouling thermal resistance detection Method for determination of moisture in calcium carbide Sediment particle size pretreatment Thermal resistance detection of dirt in water Experimental determination method for antiscalants Calcium sulfate scale inhibition rate detection method Calcium carbonate purity determination Anti/antiscalant quality Calcium phosphate scale inhibition rate Sulfate scale inhibition Calcium sulfate scale detection method Carbon resistance control Antiscaling performance test Sediment sulfate determination method sediment treatment NMR deconvolution processing method Methods for measuring volatile acids in water High temperature and high pressure water fouling deposition gb/t16632-2019 gb/t 16632 Calcium-based water treatment agent standards gbt16632

《GB/T 16632-2019水处理剂阻垢性能的测定碳酸钙沉积法》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。

Introduction

Technical background of the standard

This standard replaces GB/T16632-2008 and revise the method for determining the scaling tendency of calcium carbonate in circulating cooling water systems. The main updates include:

Comparison dimensions	2008 edition	2019 edition
Sampling volume	Not specified	100mL±1mL
Stirring speed	300rpm	300-500rpm adjustable
Result representation	mg/L CaCO₃	mg/L±0.1 accuracy

Detailed explanation of the method principle

By adding supersaturated calcium carbonate solution into the water sample, reacting at a constant temperature of 80±1℃ for 4 hours, the precipitate is separated by a vacuum filtration device, and then dried and weighed.

Key instrument requirements

Constant temperature water bath: temperature control accuracy ±0.5℃
Magnetic stirrer: speed range 300-1500rpm
Microporous filter membrane: pore size 0.45μm

Implementation Precautions

Application Case of Thermal Power Plant

The detection of the circulating water system of a 600MW unit showed that when the measured value was 700mg/L, the scaling rate of the condenser tube wall increased by 3 times, and the acid addition adjustment program needed to be started.

Key points for error control

Complete analysis within 24 hours after sampling
Relative deviation of parallel samples ≤5%
Blank test consumption ≤0.2mg

More samples: DL/T 368-2010 YD/T 3934-2021 GB 18306-2015

Sample only — not a preview of GB/T 16632-2019

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