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GB/T 33277-2016 English PDF

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US$119.00 · In stock
Delivery: <= 2 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 33277-2016: Tissue paper -- Determination of lead and arsenic released
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 33277-2016	119	Add to Cart	2 days	Tissue paper -- Determination of lead and arsenic released	Valid

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Basic data

Standard ID: GB/T 33277-2016 (GB/T33277-2016)
Description (Translated English): Tissue paper -- Determination of lead and arsenic released
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: Y30
Classification of International Standard: 85.060
Word Count Estimation: 6,647
Date of Issue: 2016-12-13
Date of Implementation: 2017-07-01
Regulation (derived from): National Standard Announcement No.217 of 2016
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China

GB/T 33277-2016: Tissue paper -- Determination of lead and arsenic released

---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.
Tissue paper - Determination of lead and arsenic released ICS 85.060 Y30 National Standards of People's Republic of China Determination of traceability of lead and arsenic in living paper 2016-12-13 released 2017-07-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China China National Standardization Management Committee released

Foreword

This standard is drafted in accordance with the rules given in GB/T 1.1-2009. Please note that some of the contents of this document may involve patents. The release of this document The Agency does not assume responsibility for identifying these patents. This standard is proposed by the China Light Industry Federation. This standard by the National Paper Industry Standardization Technical Committee (SAC/TC141) centralized. The drafting of this standard. China Pulp and Paper Research Institute, Beijing Hai Guang Instrument Co., Ltd., China Paper Association Standardization Professional Committee, National Paper Quality Supervision and Inspection Center. The main drafters of this standard. Liu Yang, Gao Jun, Li Ping, Du Jiang. Determination of traceability of lead and arsenic in living paper

1 Scope

This standard specifies the determination of migratable lead and arsenic content in tissue. This standard applies to the use of tissue (tissue paper, toilet paper, paper towels, kitchen paper towels, etc.) in the determination of migratory lead and arsenic content.

2 normative reference documents

The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article Pieces. For undated references, the latest edition (including all modifications) applies to this document. GB/T 450 paper and cardboard samples taken and the sample longitudinal and horizontal, positive and negative determination GB/T 462 Paper, board and pulp analysis - Determination of moisture content GB/T 6682 Analytical laboratory water specifications and test methods

3 principle

The sample was washed with acetic acid solution for a predetermined time and temperature and then treated as a sample. The contents of lead in the soaking solution were measured by atomic absorption spectrophotometer The content of arsenic in soaking solution was measured by atomic fluorescence spectrometer.

4 Experimental reagents

4.1 Pretreatment reagent 4.1.1 Water. GB/T 6682, two or more. 4.1.2 acetic acid solution (4%). take 40mL acetic acid (analytical grade), add water diluted to 1000mL. 4.2 Reliable reagents for the determination of lead content 4.2.1 concentrated nitric acid, ρ = 1.40g/mL, mass fraction of 65% to 68%. 4.2.2 nitric acid (1 1). take 50mL concentrated nitric acid (4.2.1) slowly add 50mL of water. 4.2.3 nitric acid (6 94). take 3mL concentrated nitric acid (4.2.1) slowly add 50mL of water, diluted to 100mL. 4.2.4 ammonium dihydrogen phosphate solution (20g/L). Weigh 2.0g ammonium dihydrogen phosphate, diluted with water to 100mL. 4.2.5 lead standard solution. self-preparation or to have the appropriate qualifications of the institutions to buy. Self-preparation can be done in two ways. a) lead standard stock solution. accurately weighed 1.000g metal lead (99.99%) graded plus a small amount of nitric acid (1 1) (4.2.2) dissolved by heating, The total does not exceed 37mL, into the 1000mL volumetric flask, add water to the mark. The solution contained 1.0 mg of lead per milliliter. b) lead standard stock solution. accurately weighed 0.1598g lead nitrate (excellent grade pure) in the beaker, add a small amount of water, then add 20mL thick Nitric acid (4.2.1) dissolved, into the 100mL volumetric flask, diluted with water to the mark, the solution per milliliter equivalent to 1.0mg lead. 4.2.6 Lead Standard working solution. concentration of 100ng/mL, diluted with nitric acid (6 94) (4.2.3). 4.3 Reagents for the determination of migratory arsenic content 4.3.1 hydrochloric acid, ρ = 1.18g/mL, the mass fraction of 36% to 38%. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 33277-2016_English be delivered?

Answer: Upon your order, we will start to translate GB/T 33277-2016_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 2 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 33277-2016_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 33277-2016_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.