GB/T 7702.4-1997 PDF EnglishUS$70.00 · In stock · Download in 9 seconds
GB/T 7702.4-1997: Standard test method for granular activated carbon from coal - Determination of apparent density Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure GB/T 7702.4: Historical versions
Similar standardsGB/T 7702.4-1997: Standard test method for granular activated carbon from coal - Determination of apparent density---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT7702.4-1997 GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA Standard Test Method for Granular Activated Carbon from Coal – Determination of Apparent Density Issued on: DECEMBER 03, 1997 Implemented on: JUNE 01, 1998 Issued by. State Bureau of Technical Supervision Table of ContentsForeword ... 3 1 Scope ... 4 2 Normative references ... 4 3 Summary of method ... 4 4 Instruments and devices... 4 5 Sample and preparation ... 5 6 Determination procedures ... 5 7 Process of determination results ... 6 8 Test report ... 6ForewordThis Standard is a revised edition of GB 7702.4-87 according to American Society for Testing Material standard ASTM D 2854-89 (certified in 1993) “Standard Test Method for Apparent Density of Activated Carbon”. It adopts equivalent standard content of ASTM D 2854-89 (certified in 1993) on main technical content. Determination of apparent density is changed from manual tapping in GB 7702.4-87 to electric vibration falling in this Standard. After issued and implemented, this Standard supports the use of national standard GB/T 7701.1-1997 ~ 7701.7-1997 “Granular Activated Carbon from Coal”. This Standard replaces GB 7702.4-87, from the effective date. Implementation transitional period of this Standard is one year. This Standard was proposed by China North Industries Corporation. This Standard shall be under the jurisdiction of the Institute of China Ordnance Industrial Standardization. Drafting organization of this Standard. Shanxi Xinhua Chemical Plant. Main drafters of this Standard. Wang Yueyi, Zhang Xu, Zhang Chongjie, Wang Jianguang, Zhang Lirong, and Yuan Zhi. This Standard was issued in April, 1987 for the first time. This Standard is entrusted to Shanxi Xinhua Chemical Plant for interpretation. National Standard of the People’s Republic of China Standard Test method for Granular Activated Carbon from Coal — Determination of Apparent Density Replacing GB 7702.4-871 ScopeThis Standard specifies the contents such as instruments, determination procedures, processing of determination results that are required for the determination of apparent density of granular activated carbon from coal. This Standard applies to the determination of apparent density of granular activated carbon from coal (hereinafter referred to as activated carbon). 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this Standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties who enter into agreement based on this Standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. GB/T 7702.1 Standard Test Method for Granular Activated Carbon from Coal - Determination of Moisture Content 3 Summary of method Activated carbon falls into a measuring cylinder through vibration. Weigh the mass of 100 mL of activated carbon. Calculate the apparent density. 4 Instruments and devices 4.1 Apparent density measuring device (see Figure 1). 4.2 Vibrating sieve machine. Revolving speed is 280 r/min ~ 320 r/min. Knocking speed is 140 beats/min ~ 160 beats/min. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of English version of GB/T 7702.4-1997 be delivered?Answer: The full copy PDF of English version of GB/T 7702.4-1997 can be downloaded in 9 seconds, and it will also be emailed to you in 9 seconds (double mechanisms to ensure the delivery reliably), with PDF-invoice.Question 2: Can I share the purchased PDF of GB/T 7702.4-1997_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 7702.4-1997_English will be deemed to be sold to your employer/organization who actually paid for it, including your colleagues and your employer's intranet.Question 3: Does the price include tax/VAT?Answer: Yes. 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