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GB/T 30742-2014 English PDF

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US$209.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 30742-2014: Determination of total carbon in ocean atmospheric dry deposition -- Nondispersive infrared absorption spectrometry
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 30742-2014	209	Add to Cart	3 days	Determination of total carbon in ocean atmospheric dry deposition -- Nondispersive infrared absorption spectrometry	Valid

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Basic data

Standard ID: GB/T 30742-2014 (GB/T30742-2014)
Description (Translated English): Determination of total carbon in ocean atmospheric dry deposition -- Nondispersive infrared absorption spectrometry
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: Z17
Classification of International Standard: 07.060; 13.040
Word Count Estimation: 9,965
Date of Issue: 6/9/2014
Date of Implementation: 10/1/2014
Regulation (derived from): National Standards Bulletin No. 11 of 2014
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 determination Oceanic and Atmospheric dry deposition samples total carbon non-dispersive infrared absorption method. This Standard applies to the determination of marine sediment samples were dried in the total carbon concentra

GB/T 30742-2014: Determination of total carbon in ocean atmospheric dry deposition -- Nondispersive infrared absorption spectrometry

---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.
Determination of total carbon in ocean atmospheric dry deposition. Nondispersive infrared absorption spectrometry ICS 07.060; 13.040 Z17 National Standards of People's Republic of China Determination of the ocean-atmosphere dry deposition of total carbon Non-dispersive infrared absorption method Issued on. 2014-06-09 2014-10-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. This standard was proposed by the State Oceanic Administration. This standard by the National Standardization Technical Commission for Oceanography (SAC/TC283) centralized. This standard by the State Oceanic Administration, the South China Sea Environmental Monitoring Center is responsible for drafting. The main drafters of this standard. Ni Zhixin, square HTC, Chang Chao, Ye Jianping, Wu Lingling, Zhang Bao-Xue, Xin Haihong, He Xiaoyuan, forest side, Huangchu Guang, Cai Wei Syria, Wujin Xiao, Qu read East. Determination of the ocean-atmosphere dry deposition of total carbon Non-dispersive infrared absorption method

1 Scope

This standard specifies the determination of the ocean-atmosphere dry sediment samples total carbon non-dispersive infrared absorption method. This standard applies to the determination of marine sediment samples dry atmosphere of total carbon concentration.

2 Terms and definitions

The following terms and definitions apply to this document. 2.1 Ocean-atmosphere dry deposition oceanatmosphericdrydeposition In the air - sea interface stays aerosol particle size in the range of 100μm or less collectively Oceanic and Atmospheric suspended particles. 2.2 Total carbon totalcarbon (TC) Reference material or samples of carbon contained in the totality of the organic carbon and inorganic carbon, carbon mass fraction to FIG.

3 PRINCIPLE OF THE METHOD

This method is a way to the ocean-atmosphere carbon dioxide dry sediment filter samples after high temperature combustion produced by non-dispersive infrared detector Device (the NDIR) method for measuring. According to the response signal generated by the infrared absorption of carbon dioxide and a signal value corresponding to the unit mass of carbon Number value to calculate the carbon content in the sample.

4 Reagents and materials

4.1 Reagent * * Unless otherwise specified, the reagents 4.1 of analytical grade. 4.1.1 acetanilide (acetanilide), analytical grade or higher purity level, the drying temperature. 60 ℃, drying time. not less than 1h, dried The dish was cooled to room temperature before use. 4.1.2 Other elements of the instrument manufacturer's recommended analytical standards. Gas 4.2 4.2.1 helium or argon gas (carrier gas), not less than 99.995% purity, moisture not more than 10-6g/L, gas valve, pressure gauge range. 0MPa ~ 0.4MPa. 4.2.2 oxygen purity of not less than 99.995%, moisture not more than 10-6g/L, oxygen valve, pressure gauge measuring range. 0MPa ~ 0.6MPa. 4.3 Material 4.3.1 Ball valve type injector, to use a ceramic crucible or foil. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 30742-2014_English be delivered?

Answer: Upon your order, we will start to translate GB/T 30742-2014_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 30742-2014_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 30742-2014_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.