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GB/T 35755-2017 English PDF

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US$199.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 35755-2017: Surfactants and detergents -- Determination of formaldehyde contents
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 35755-2017	199	Add to Cart	3 days	Surfactants and detergents -- Determination of formaldehyde contents	Valid

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Basic data

Standard ID: GB/T 35755-2017 (GB/T35755-2017)
Description (Translated English): Surfactants and detergents -- Determination of formaldehyde contents
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G72
Classification of International Standard: 71.100.40
Word Count Estimation: 10,138
Date of Issue: 2017-12-29
Date of Implementation: 2018-07-01
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 35755-2017: Surfactants and detergents -- Determination of formaldehyde contents

---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.
Surfactants and detergents - Determination of formaldehyde contents ICS 71.100.40 G72 National Standards of People's Republic of China Determination of formaldehyde content of surfactants and detergents 2017-12-29 Posted 2018-07-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China China National Standardization Administration released

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard proposed by the China Light Industry Federation. This standard by the National Surfactants and Detergents Standardization Technical Committee (SAC/TC272) centralized. This standard was drafted. China Daily Chemical Industry Institute [National Detergents Quality Supervision and Inspection Center (Taiyuan)], Chan Yu-technology set Group Co., Ltd., Xi'an Kai meters Co., Ltd., Zhejiang just Inspection Center Co., Ltd. The main drafters of this standard. Li Xiaorui, Gezan, Yao Chen, Gao Huanquan, Xia Xiong Yan, Baozhong Ding. Determination of formaldehyde content of surfactants and detergents

1 Scope

This standard specifies the use of spectrophotometry and liquid chromatography method for the determination of formaldehyde content of surfactants and detergents. This standard applies to the determination of formaldehyde content of surfactants and detergents. This standard spectrophotometry is suitable for the determination of the total formaldehyde content of the sample (containing formaldehyde emission body) content, liquid chromatography for the determination of test Free formaldehyde content in the sample.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version applies to this article Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 6682 analytical laboratory water specifications and test methods QB/T 2739-2005 Common test methods for cleaning products Preparation of test solution for titration analysis (volumetric analysis) 3 total formaldehyde (containing formaldehyde emission body) content determination --- Spectrophotometry 3.1 principle Formaldehyde reacts with acetylacetone in the presence of ammonium acetate to form a yellow complex, which is measured with a spectrophotometer at a wavelength of 410 nm Absorbance of the compound. 3.2 Reagents Unless otherwise specified, only reagents identified as analytical grade and Grade III water conforming to GB/T 6682 are used in the analysis. 3.2.1 Glacial acetic acid. 3.2.2 Ammonium acetate. 3.2.3 isopropanol. 3.2.4 Acetylacetone. 3.2.5 Preparation of Acetylacetone Reagent. Dissolve 75 g of ammonium acetate (3.2.2) in about.200 mL of water, add 1.0 mL of acetylacetone (3.2.4) And 1.5mL glacial acetic acid (3.2.1), diluted with water to 500mL mix. This reagent should be used now with. 3.2.6 Preparation of reference reagents. Prepared according to 3.2.5 but without acetylacetone. 3.3 Instruments Common laboratory equipment and the following. 3.3.1 Spectrophotometer, the wavelength range of 360nm ~ 800nm, with a light path length of 10mm cuvette. 3.3.2 water bath, can be controlled at (60 ± 1) ℃. 3.3.3 Analytical balance, flu 0.1mg. 3.3.4 volumetric flask. 50mL, 100mL, 500mL. 3.3.5 Pipette. 1mL, 2mL, 5mL, 10mL, 15mL. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 35755-2017_English be delivered?

Answer: Upon your order, we will start to translate GB/T 35755-2017_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 35755-2017_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 35755-2017_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.