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GB/T 23977-2009 English PDF

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US$189.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 23977-2009: Dyestuffs -- Determination of content of salt -- Conductance method
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 23977-2009	189	Add to Cart	3 days	Dyestuffs -- Determination of content of salt -- Conductance method	Valid

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Basic data

Standard ID: GB/T 23977-2009 (GB/T23977-2009)
Description (Translated English): Dyestuffs -- Determination of content of salt -- Conductance method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G55
Classification of International Standard: 71.100.01; 87.060.10
Word Count Estimation: 8,870
Date of Issue: 2009-06-02
Date of Implementation: 2010-02-01
Quoted Standard: GB/T 2374-2007; GB/T 6682-2008
Regulation (derived from): National Standard Approval Announcement 2009 No.8 (Total No.148)
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
Summary: This standard specifies the method for determining the amount of dye salt with conductivity meter (as NaCl) is. This standard applies to the dye content (NaCl) is determined.

GB/T 23977-2009: Dyestuffs -- Determination of content of salt -- Conductance method

---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.
Dyestuffs. Determination of content of salt. Conductance method ICS 71.100.01; 87.060.10 G55 National Standards of People's Republic of China Determination of the amount of the dye salt conductivity method Posted 2009-06-02 2010-02-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

The standard proposed by China Petroleum and Chemical Industry Association. This standard by the National Standardization Technical Committee Dye (SAC/TC134) centralized. This standard was drafted. Zhejiang Ruihua Chemical Co., Ltd., Anhui Fengyang dye Chemical Co., Ltd., Shenyang Chemical Research Institute, National dye Material Quality Supervision and Inspection Center. The main drafters of this standard. Wang Yong, Nguyen GB , Zhihua, Kiran piano, Ruanfang Ping, Ma Junqing. Determination of the amount of the dye salt conductivity method

1 Scope

This standard specifies the method for determining the amount of the dye of salt with conductivity meter (as NaCl) of. This standard applies to dye salinity (as NaCl) were measured.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. General conditions GB/T 2374-2007 Determination of dyes provisions GB/T 6682-2008 analytical laboratory use specifications and test methods (ISO 3696. 1987, MOD) Principle 3 Within a certain range of concentration, the salt content of the solution was positively correlated with the electrical conductivity, the higher the salinity, the greater the osmotic pressure of the solution, the conductivity is also more Big. Dubbed a certain concentration of the dye solution or suspension, by measuring the electrical conductivity of the solution, you can calculate the salt content of the sample.

4 Equipment and Materials

Equipment and materials shall comply with GB/T 2374-2007 the provisions relating to equipment and materials; experimental water should comply with GB/T 6682-2008 The three water requirements. a) conductivity meter. b) analytical balance. a sense of the amount of 0.0001g. c) volumetric flask. 100mL, 250mL, 500mL, 1000mL. d) a single marking straw. 10mL, 20mL, 50mL. e) Sodium chloride, analytical grade.

5 measurement method

5.1 Standard curve preparation work 5.1.1 Preparation of standard solutions Accurately weighed sodium chloride 1g (accurate to 0.0005g), dissolved in water to 1000mL volumetric flask, dubbed 1000mg/L The standard solution. Single marking straw from Pipette 50mL solution, were placed in 100mL, 250mL and 500mL flask Diluted with water to the mark, dubbed 500mg L, 200mg/L, 100mg L solution//. Then a single straw from marking solution 100mg/L of Solution Pipette 50mL, 20mL, 10mL in three 100mL flask, diluted with water to the mark, formulated as 50mg/L, 20mg/L, 10mg/L of standard solution. 5.1.2 Determination of standard solution Determination of the file in accordance with this standard 5.1.1 formulated standard solution conductivity δx with conductivity meter, respectively. 5.1.3 Draw the standard curve Values \u200b\u200bare plotted according to the conductivity of the standard solution of sodium chloride concentration and the measured conductivity - concentration curve. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 23977-2009_English be delivered?

Answer: Upon your order, we will start to translate GB/T 23977-2009_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 23977-2009_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 23977-2009_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.