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HYT171-2014 English PDF

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HYT171-2014: Technical specification for preparation and storage of reference materials for marine plants component analysis
Status: Valid

Standard ID	Contents [version]	USD	STEP2	[PDF] delivered in	Standard Title (Description)	Status	PDF
HY/T 171-2014	English	259	Add to Cart	3 days [Need to translate]	Technical specification for preparation and storage of reference materials for marine plants component analysis	Valid	HY/T 171-2014

PDF similar to HYT171-2014

Standard similar to HYT171-2014

GB/T 33673 DZ/T 0175 HY/T 172 HY/T 173 HY/T 170

Basic data

Standard ID	HY/T 171-2014 (HY/T171-2014)
Description (Translated English)	Technical specification for preparation and storage of reference materials for marine plants component analysis
Sector / Industry	Marine Industry Standard (Recommended)
Classification of Chinese Standard	A45
Classification of International Standard	07.060; 17.020
Word Count Estimation	10,119
Date of Issue	6/25/2014
Date of Implementation	12/1/2014
Quoted Standard	JJF 1005-2005; JJF 1006-1994; JJF 1135-2005
Regulation (derived from)	Industry Standard Filing Notice 2014 No. 9 (Overall No. 177)
Issuing agency(ies)	State Oceanic Administration
Summary	This Standard specifies the standard material of marine plants and conservation methods and the development of technical requirements. This Standard applies to large marine algae (mainly kelp, wakame seaweed and other large algae) inorganic component anal

HYT171-2014: Technical specification for preparation and storage of reference materials for marine plants component analysis

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Technical specification for preparation and storage of reference materials for marine plants component analysis ICS 07.060;17.020 A45 People's Republic of China Marine Industry Standard Development and preservation of marine plant reference materials specifications Released on.2014-06-25 2014-12-01 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 Second Institute of Oceanography, State Oceanic Administration. This standard is under the jurisdiction of the National Marine Standardization Technical Committee (SAC/TC283). This standard was drafted. Second Institute of Oceanography, State Oceanic Administration, Zhejiang University. The main drafters of this standard. Lu Haiyan, Wang Zhengfang, Zhang Shiyong, Zhou Qingsong. Development and preservation of marine plant reference materials specifications

1 Scope

This standard specifies the methods and technical requirements for the development and preservation of marine plant reference materials. This standard is applicable to the research of standard materials for the analysis of inorganic components of macroalgae (mainly kelp, wakame, seaweed and other macroalgae) in the ocean. Preparation and storage, other component analysis standard materials can refer to this standard.

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. JJF1005-2005 Commonly used terms and definitions of reference materials JJF1006-1994 Technical Specification for Grade One Reference Material JJF1135-2005 Evaluation of Uncertainty in Chemical Analysis Measurement

3 Terms and definitions

The following terms and definitions established by JJF1005-2005 and are applicable to this document. 3.1 Marineplants Autotrophic organisms with chlorophyll, photosynthesis, and organic matter production, including marine algae, fungi, lichens and vascular plants Wait. In this standard, marine plants mainly refer to macroalgae such as kelp, wakame, and laver. 3.2 Vacuumfreeze-drying A method of freezing the object to fix its biological characteristics and structure, and then drying it under vacuum (that is, the solid Body water directly sublimate into gaseous state), so as to achieve the purpose of dehydration technology. Note 1.Vacuum freeze drying is also called sublimation drying, freeze drying, and vacuum freeze drying. Note 2.The vacuum freeze-drying process includes three basic operations. freezing, sublimation (primary drying) and desorption (secondary drying), the object can hardly be structured Changes in upper or biological characteristics, and has a high degree of dehydration (more than 95% to 99% of water can be discharged), so it is conducive to long-term storage. object The drying process is carried out under vacuum conditions, so it is not easy to oxidize. 3.3 [Nuclear] irradiation sterilization A "cold disinfection" method to kill bacteria in objects by irradiation with cobalt-60 gamma rays with a given ratio of energy.

4 Preparation of marine plant reference materials

4.1 The preparation process of marine plant reference materials Before analysis, the samples (including uniformity, stability inspection and multiple fixed values) should be dried at (60±1)℃ for 2h.

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