GB/T 12809-2015 English PDF

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GB/T 12809-2015: Laboratory glassware -- Principles of design and construction of volumetric glassware
Status: Valid

GB/T 12809: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 12809-2015	399	Add to Cart	4 days	Laboratory glassware -- Principles of design and construction of volumetric glassware	Valid
GB/T 12809-1991	519	Add to Cart	4 days	Laboratory glassware. Principles of design and construction of volumetric glassware	Obsolete

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Basic data

Standard ID: GB/T 12809-2015 (GB/T12809-2015)
Description (Translated English): Laboratory glassware -- Principles of design and construction of volumetric glassware
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: N64
Classification of International Standard: 81.040.01
Word Count Estimation: 19,153
Date of Issue: 2015-12-31
Date of Implementation: 2016-07-01
Older Standard (superseded by this standard): GB/T 12809-1991
Regulation (derived from): State Standard Announcement 2015 No.43
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 12809-2015: Laboratory glassware -- Principles of design and construction of volumetric glassware

---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.
Laboratory glassware - Principles of designand construction of volumetric glassware ICS 81.040.01 N64 National Standards of People's Republic of China Replacing GB/T 12809-1991 Laboratory glassware Design and construction principles of Glass Container (ISO 384. 1978, NEQ) Issued on. 2015-12-31 2016-07-01 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 replaces GB/T 12809-1991 "principles of design and construction of laboratory glassware Glass Container." And GB/T 12809- 1991 The main difference is as follows. --- Increasing the terms and definitions; --- Forfeited modify standard reference currently valid standards. The standard reference method using redrafted ISO 384. 1978 "design and construction principles of laboratory glassware gauge the" establishment, And ISO 384. 1978 of the non-equivalent. Please note that some of the content of this document may involve patents. Release mechanism of the present document does not assume responsibility for the identification of these patents. The standard proposed by China National Light Industry Council. This standard by National Instrument Standardization Technical Committee on Glass (SAC/TC178) centralized. This standard was drafted. China Institute of Metrology, national light industrial glass products Quality Supervision and Testing Center, Shandong Province of Metrology Institute. The main drafters. Zhang Long, Wang Jintao, Tong Lin, Yuan Chunmei, Ji Jianying. This standard replaces the standards previously issued as follows. --- GB/T 12809-1991. Laboratory glassware Design and construction principles of Glass Container

1 Scope

This standard specifies the design and construction principles of Glass Container. This standard applies to capacity range in 0.1mL ~ 2000mL glass gauges, including graduated cylinder, measuring cup, Buret, indexing straw (suck The amount of pipe), a single marking pipette (pipette) and the flask and the like.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. GB/T 21297 tapered frosted glass laboratory equipment swap connector GB/T 28214 Laboratory glassware color-coded pipette

3 Terms and Definitions

The following terms and definitions apply to this document. 3.1 Unit of capacity capacityunits Capacity measuring unit milliliter (mL) or cubic centimeter (cm3). Also available cubic decimeter (dm3) or cubic millimeters under special circumstances (Mm3), i.e. liters (L) or microliters (μL). 3.2 Standard temperature standardtemperature Temperature of the glass used to gauge or measure out the amount of its nominal volume (capacity) when, as 20 ℃. Accuracy 4 Capacity 4.1 When a specification is required, there are two levels of accuracy, the higher should be labeled as "A-class"; a lower level shall be marked as "B-class." 4.2 Capacity tolerance should be determined according to the method used for each gauge, objects, and levels of accuracy. 4.3 Glass Container capacity usually tolerance value should be a multiple of the number of columns or a suitable 10-12-15-20-25-30-40-50-60-80 10 Select. Note. This is the preferred value of R10 series, using it, in order to avoid certain non-integer (eg 31.5) decimal precision value factor, in fact, it will not be able measure. 4.4 pairs of a series of specifications of the measure and the provisions of the capacity of tolerance as shown in Appendix A logarithmic chart, should provide an appropriate and uniform series. The chart should include as an appendix in a predetermined gauge all the technical requirements of 3 or more of the specifications. 4.5 equiv has A, B two levels of accuracy when, B-level capacity tolerance should normally be approximately twice the A-level tolerances. 4.6 With the division of the table the measure and any level of accuracy of the maximum capacity of tolerance should not normally exceed the capacity of its minimum scale values. ......

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