GB/T 21877-2015 English PDFUS$109.00 ยท In stock
Delivery: <= 2 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 21877-2015: Dyestuffs and intermediate of dyes -- Determination of tapping density Status: Valid GB/T 21877: Historical versions
Basic dataStandard ID: GB/T 21877-2015 (GB/T21877-2015)Description (Translated English): Dyestuffs and intermediate of dyes -- Determination of tapping density Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: G55 Classification of International Standard: 71.100.01; 87.060.10 Word Count Estimation: 5,591 Date of Issue: 2015-05-15 Date of Implementation: 2015-12-01 Older Standard (superseded by this standard): GB/T 21877-2008 Regulation (derived from): National Standard Announcement 2015 No. 15 Issuing agency(ies): General Administration of Quality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 determination of dyes and dye intermediates bulk density. This Standard applies to dyes and dye intermediates stacked density determination. GB/T 21877-2015: Dyestuffs and intermediate of dyes -- Determination of tapping density---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 and intermediate of dyes. Determination of tapping density ICS 71.100.01; 87.060.10 G55 National Standards of People's Republic of China Replacing GB/T 21877-2008 Determination of dyes and dye intermediates bulk density Issued on. 2015-05-15 2015-12-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released ForewordThis standard was drafted in accordance with GB/T 1.1-2009 given rules. This standard replaces GB/T 21877-2008 "dyes and dye intermediates Determination of bulk density", and GB/T 21877-2008 phase Ratio, in addition to editorial changes outside the main technical changes are as follows. --- Increased loose bulk density, and tap bulk density of the definition (see 2.2, 2.3); --- Increased the determination of loose bulk density (see 4.1). 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. Ou Yancheng Chemical Industry Co., dye State Quality Supervision and Inspection Center, Shenyang Chemical Research Institute have Limited. The main drafters of this standard. Zhao, Yang Jiemin, Shen Jiong day. This standard replaces the standards previously issued as follows. --- GB/T 21877-2008. Determination of dyes and dye intermediates bulk density1 ScopeThis standard specifies the method for determination of dye and dye intermediates bulk density. This standard applies to dyes and dye intermediates bulk density determination.2 Terms and definitionsThe following terms and definitions apply to this document. 2.1 Bulk density bulkdensity The sample was placed in a container, after the filling is completed the measured mass per unit volume. The bulk density can be divided into loose bulk density, and tap bulk density. 2.2 Loose bulk density loosebulkdensity Including inside and outside the pores of the particles and the particles having an average density of loose granular packs voids, with accumulation in a natural state without the tap The total mass of particulate material divided by the total volume of the bulk material is obtained. 2.3 Tap bulk density tapbulkdensity By the average density of the tap after particle packing body, not including inner and outer pores of the particles and particle voids.3 devices and materialsDevices and materials include the following. a) measuring cylinder. 100mL; b) the funnel; c) frame plate Drug balance. a sense of not more than 0.01g; d) a rubber hammer.4 Determination4.1 Determination of loose bulk density The sample was poured into a number of conical funnel, the latch to open the sample to naturally flow down, is collected in a container of known volume, then After Calibrating material weighed. Depending on the quality of the material, to calculate the mass per unit volume. 4.2 Determination of tapped bulk density The cylinder weighed after washing to dry naturally, and then the sample was loaded into the 100mL graduated cylinder lightly with a rubber hammer to gently tap the bottom, and then Add the sample volume times continue tapping, until the sample just 100mL full scale, called quality. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 21877-2015_English be delivered?Answer: Upon your order, we will start to translate GB/T 21877-2015_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 21877-2015_English with my colleagues?Answer: Yes. 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Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 21877-2015 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically. |
