GB/T 28215-2011 English PDF

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GB/T 28215-2011: Glass for thermometer bulbs
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 28215-2011	169	Add to Cart	3 days	Glass for thermometer bulbs	Valid

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Basic data

Standard ID: GB/T 28215-2011 (GB/T28215-2011)
Description (Translated English): Glass for thermometer bulbs
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: N64
Classification of International Standard: 81.040.01
Word Count Estimation: 7,747
Date of Issue: 2011-12-30
Date of Implementation: 2012-09-01
Quoted Standard: GB/T 191; GB/T 2828.1; GB/T 6543; GB/T 6580; GB/T 6581; GB/T 6582; GB/T 15726; GB/T 15728; GB/T 16920
Adopted Standard: ISO 4795-1996, NEQ
Regulation (derived from): Announcement of Newly Approved National Standards No. 23 of 2011
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 technical requirements of glass thermometers, test methods, inspection rules, marking, packaging, transport and storage. This standard applies to all kinds of liquid thermometers with glass.

GB/T 28215-2011: Glass for thermometer bulbs

---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.
Glass for thermometer bulbs ICS 81.040.01 N64 National Standards of People's Republic of China Glass Thermometer (ISO 4795.1996, NEQ) Issued on. 2011-12-30 2012-09-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard is based on GB/T 1.1-2009 given rule drafting. The standard reference method using redrafted ISO 4795.1996 "with a glass thermometer" preparation, and ISO 4795.1996 process consistency Degree is not equivalent. 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. Glass National Light Industry Product Quality Supervision and Inspection Center. The main drafters of this standard. Du Yuhai, Yuan Chunmei, Liang Ye, Yang Jianxin. Glass Thermometer

1 Scope

This standard specifies the technical requirements with a glass thermometer, test methods, inspection rules, marking, packaging, transportation and storage. This standard applies to all kinds of liquid glass thermometer.

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 191 Packaging - Pictorial signs GB/T 2828.1 Sampling procedures for inspection - Part 1. by acceptance quality limit (AQL) retrieval batch inspection sampling plan GB/T 6543 transport packaging corrugated box with a single and double corrugated boxes GB/T 6580 Glass - Resistance to boiling aqueous solution of mixed alkali erosion test methods and classification GB/T 6581 acid-etched glass at 100 ℃ Flame emission or atomic absorption spectrometric method GB/T 6582 Test methods and classification of glass particles at 98 ℃ water resistance Within the GB/T 15726 glassware stress testing methods GB/T 15728 glass resistant to boiling hydrochloric acid attack by weight of the test method and classification Determination of GB/T 16920 glass average linear thermal expansion coefficient

3 Technical requirements

3.1 Appearance and internal defects Glass thermometer should be colorless and transparent quality glass, and any defects intensity readings are not affected. 3.2 Physical and Chemical Properties Physical and chemical properties shall comply with the requirements of Table 1. Table 1 Physical and chemical performance requirements Project Requirements Linear thermal expansion coefficient of not more than 9.0 × 10-6K-1 (20 ℃ ~ 300 ℃) Alkali resistance A1 Acid resistance level H1 or sodium oxide precipitation amount ≤100μg/dm2 Glass particles at 98 ℃ resisfance HGB 2 3.3 stress Glass should be well-annealed, residual stress birefringence of the optical path difference is not more than 80nm/cm. ......

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