GB/T 40272-2021 English PDF

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GB/T 40272-2021: Paper, board, pulps and cellulose nanomaterials - Determination of acid-soluble magnesium, calcium, manganese, iron, copper, sodium and potassium
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 40272-2021	339	Add to Cart	4 days	Paper, board, pulps and cellulose nanomaterials - Determination of acid-soluble magnesium, calcium, manganese, iron, copper, sodium and potassium	Valid

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Basic data

Standard ID: GB/T 40272-2021 (GB/T40272-2021)
Description (Translated English): Paper, board, pulps and cellulose nanomaterials - Determination of acid-soluble magnesium, calcium, manganese, iron, copper, sodium and potassium
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: Y30
Word Count Estimation: 18,110
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 40272-2021: Paper, board, pulps and cellulose nanomaterials - Determination of acid-soluble magnesium, calcium, manganese, iron, copper, sodium and potassium

---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.
Paper, board, pulps and cellulose nanomaterials-Determination of acid-soluble magnesium, calcium, manganese, iron, copper, sodium and potassium ICS 85.010 Y30 National Standards of People's Republic of China Paper, cardboard, pulp and cellulose nanomaterials Determination of acid-soluble magnesium, calcium, manganese, iron, copper, sodium and potassium (ISO 12830.2019, MOD) Released on 2021-05-21 2021-12-01 implementation State Administration of Market Supervision and Administration Issued by the National Standardization Management Committee

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard uses the redrafting method to amend and adopt ISO 12830.2019 ``Paper, paperboard, pulp and cellulose nanomaterials acid-soluble magnesium, calcium, Determination of manganese, iron, copper, sodium and potassium. Compared with ISO 12830.2019, the structural adjustments of this standard are as follows. ---Merge 8.2 and 8.3 into 8.2, modify 8.4 to 8.3.1, and modify 8.5 to 8.3.2; ---Merge 10.1 and 10.2 into Chapter 10; --- Split Chapter 11 into 3 articles; --- Change A.1 and A.4 to a sub-clause expression. Compared with ISO 12830.2019, the main technical differences of this standard and the reasons are as follows. ---Modified the scope, increased the detection limit of the method, and made the standard technical content more perfect; --- Regarding normative reference documents, this standard has made adjustments with technical differences to adapt to my country's technical conditions and adjustments. The situation is collectively reflected in Chapter 2 "Normative Reference Documents", with specific adjustments as follows. ● Replace ISO 186 with GB/T 450, which is modified to adopt international standards; ● Replace ISO 638 with GB/T 462, which is modified to adopt international standards; ● Replace ISO 7213 with GB/T 740 which is equivalent to adopting international standards; ● Replace ISO 3696 with GB/T 6682 modified to adopt international standards; ● Replace ISO 1762 with GB/T 22877 which is modified to adopt international standards; --- The notes to 3.1, 3.2 and 3.3 in terms and definitions have been deleted. This part of ISO 12830.2019 is mainly used to explain the "introduction" The content in "Shao", this standard does not have this part; ---Modified the content in 5.1, in line with my country's test method standard compilation rules; ---Added the requirements for the purity of the metal used when preparing the standard element stock solution, as well as the storage time and environmental requirements of the stock solution, Make the standard technical content more perfect and easy to operate. Please note that some of the contents of this document may involve patents. The issuing agency of this document is not responsible for identifying these patents. This standard was proposed by the China National Light Industry Council. This standard is under the jurisdiction of the National Paper Industry Standardization Technical Committee (SAC/TC141). This standard was drafted by. China Light (Jinjiang) Hygiene Products Research Co., Ltd., China Light Paper Inspection and Certification Co., Ltd., Xiaoxian Lin, Anhui Province Ping Paper Co., Ltd., Huazhiding (Xiamen) Commodity Co., Ltd., Zhejiang Huafeng Paper Technology Co., Ltd., China Pulp and Paper Research Institute have Limited company. The main drafters of this standard. Liu Yang, Li Jianyong, Chen Xi, Li Jianshe, Zhang Ruochen, Chen Yuefang, Wang Haipei. Paper, cardboard, pulp and cellulose nanomaterials Determination of acid-soluble magnesium, calcium, manganese, iron, copper, sodium and potassium Warning 1---The personnel using this standard should have practical experience working in a formal chemical laboratory. This standard does not indicate all possible For safety issues, users have the responsibility to take appropriate safety and health measures and to ensure compliance with the conditions stipulated by relevant national laws and regulations. Warning 2-The method specified in this standard involves the use of nanomaterials. Care should be taken to ensure compliance with nanotechnology laboratory safety and best practices Relevant preventive measures and guidelines in practice.

1 Scope

This standard specifies the use of atomic absorption spectroscopy (AAS) or inductively coupled plasma emission spectrometry (ICP-OES) for the determination of paper, paper A method of acid-soluble magnesium, calcium, manganese, iron, copper, sodium, and potassium in board, pulp and cellulose nanomaterials. This standard applies to paper, cardboard, pulp and cellulose nanomaterials. The detection limit of magnesium in this standard is 0.4mg/kg; the detection limit of calcium is 0.2mg/kg; the detection limit of manganese is 0.4mg/kg; the detection limit of iron is The limit of detection is 1.0mg/kg; the detection limit of copper is 0.6mg/kg; the detection limit of sodium is 0.4mg/kg; the detection limit of potassium is 1.2mg/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 reference documents, the latest version (including all amendments) is applicable to this document. The collection of GB/T 450 paper and paperboard samples and the determination of the longitudinal and transverse directions, front and back sides of the samples (GB/T 450-2008, ISO 186. 2002, MOD) GB/T 462 Determination of the moisture content of paper, paperboard and pulp analysis samples (GB/T 462-2008, ISO 287.1985, ISO 638. 1978, MOD) The collection of GB/T 740 pulp samples (GB/T 740-2003, ISO 7213.1981, IDT) GB/T 6682 Analytical laboratory water specifications and test methods (GB/T 6682-2008, ISO 3696.1987, MOD) GB/T 22877 Determination of burning residue (ash content) of paper, paperboard and pulp (525 ℃) (GB/T 22877-2008, ISO 1762.2001, MOD)

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 Celulosenanomaterial A material composed of cellulose with a diameter between 1nm and 100nm, and the internal or external structure is composed of nanometer (3.2) fibers Elementary composition of the material. 3.2 Nanoscale The size is between 1nm and 100nm. ......

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