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HYT196-2015 English PDF

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HYT196-2015: Determination of dissolved inorganic carbon in sea water using non-dispersive infrared absorption
Status: Valid

Standard ID	Contents [version]	USD	STEP2	[PDF] delivered in	Standard Title (Description)	Status	PDF
HY/T 196-2015	English	169	Add to Cart	3 days [Need to translate]	Determination of dissolved inorganic carbon in sea water using non-dispersive infrared absorption	Valid	HY/T 196-2015

PDF similar to HYT196-2015

Standard similar to HYT196-2015

GB/T 33584.3 GB/T 33584.2 GB 18420.1 HY/T 203.2 HY/T 203.3 HY/T 203.1

Basic data

Standard ID	HY/T 196-2015 (HY/T196-2015)
Description (Translated English)	Determination of dissolved inorganic carbon in sea water using non-dispersive infrared absorption
Sector / Industry	Marine Industry Standard (Recommended)
Classification of Chinese Standard	Z17
Classification of International Standard	07.060; 13.060
Word Count Estimation	7,729
Date of Issue	2016-03-02
Date of Implementation	2016-06-01
Regulation (derived from)	State Oceanic Administration Notice No. 1, 2016 (No. 25)
Issuing agency(ies)	State Oceanic Administration
Summary	This standard specifies the non-dispersive infrared absorption method for the determination of total dissolved carbon in seawater, the operating principle and the results of the calculation. This standard is applicable to the determination of total dissolved inorganic carbon in oceanic, coastal seawater and estuarine seawater, and the determination range is 1 650 ��mol/kg ~ 2 350 ��mol/kg.

HYT196-2015: Determination of dissolved inorganic carbon in sea water using non-dispersive infrared absorption

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Determination of dissolved inorganic carbon in sea water using non-dispersive infrared absorption ICS 07.060;13.060 Z17 People's Republic of China Marine Industry Standard Determination of total dissolved inorganic carbon in sea water Non-dispersive infrared absorption method Released on.2016-02-16 2016-06-01 Implementation Issued by the State Oceanic Administration

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard was proposed by the National Marine Environmental Monitoring Center. This standard is under the jurisdiction of the National Marine Standardization Technical Committee (SAC/TC283). Drafting organization of this standard. National Marine Environmental Monitoring Center. The main drafters of this standard. Zheng Nan, Wang Juying, Xu Xuemei, Zang Kunpeng, Zhao Huade, Huo Cheng, Mu Jingli. Determination of total dissolved inorganic carbon in sea water Non-dispersive infrared absorption method

1 Scope

This standard specifies the principle, operation steps and calculation of the method for the determination of total dissolved inorganic carbon in seawater by the non-dispersive infrared absorption method. This standard applies to the determination of total dissolved inorganic carbon content in oceanic seawater, coastal seawater, and estuary seawater. The measurement range is 1650μmol/kg~2350μmol/kg.

2 Normative references

The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this article Pieces. For undated references, the latest version (including all amendments) applies to this document. GB/T 12763.7 Ocean Survey Specification Part 7.Ocean Survey Data Exchange

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 Total dissolved inorganic carbon dissolvedinorganiccarbon, DIC. The total amount of dissolved inorganic carbon (including dissolved CO2, H2CO3, HCO-3, CO2-3) contained in each kilogram of seawater, single The position is micromole per kilogram (μmol/kg).

4 Principle of the method

The total dissolved inorganic carbon in seawater is transformed into free carbon dioxide (CO2) under acidic conditions, and the resulting carbon dioxide is generated by using high-purity nitrogen as the carrier gas. The carbon oxide is blown into the drying system to dry, and enters the non-dispersive infrared analysis detector to determine the amount of carbon dioxide, and calculate the total dissolved inorganic carbon in the seawater content.

5 Reagents and materials

Unless otherwise stated, the reagents used in this standard are analytically pure, and the water is deionized water or equivalent pure water. 5.1 Nitrogen. purity ≥99.999%. 5.2 Silicone grease. it can be fully ashed when calcined at 450℃. 5.3 Magnesium perchlorate. fine particles. 5.4 Seawater standard sample. The total dissolved inorganic carbon content can be accurate to 0.1μmol/kg. Under normal circumstances, it will be effective within 3d after opening. Store at room temperature and avoid light or refrigerate at 4°C. If the remaining seawater standard sample volume is less than 2/3 of the bottle volume, it should be replaced. 5.5 Phosphoric acid solution. Dissolve 100g of sodium chloride in about 500mL of water, after it is completely dissolved, add 100mL of phosphoric acid (ρ=1.685g/mL), Dilute to 1000mL. 5.6 Saturated mercuric chloride solution. Dissolve 8.0g of mercuric chloride in about 100mL of water, stir well, and there is a small amount of mercuric chloride in the solution after standing still

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