GB/T 6488-2022 in English

VALID

Single-mode optical fibres for telecommunication—Part 7: Characteristics of a bending loss insensitive single-mode optical fibre

Issued on:2022-10-12
Implemented on:2023-05-01
File Format:PDF
Delivery:Via email within 1~3 business days

Price(USD)： $120.00
$117.00

Standard No:	GB/T 6488-2022
Document status:	VALID
Title in English:	Single-mode optical fibres for telecommunication—Part 7: Characteristics of a bending loss insensitive single-mode optical fibre
Title in Chinese:	液体化工产品折光率的测定
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 1~3 business days
Issued on:	2022-10-12
Implemented on:	2023-05-01
Superseding:	GB/T 6488-2008 Liquid chemicals - Determination of refrative index at 20℃
ICS Classification:	71.040.50-Physicochemical methods of analysis
Chinese Classification:	G04-Basic standards and general methods
Professional Classification:	GB-National Standard
Related Keywords:	single-mode optical fibres insensitive single-mode optical fibre introduction automatic optical detection technology telecommunication part bending loss
Related Topics:	Chemical Products GB/T 6488 Refractometer Refractive Cosmetics Refractive index Refractive Cosmetics liquid wavelength Refractive index instrument Refractive index instrument liquid tools liquid sample light The refractive index of the sample is measured each time Determination of liquid spectrophotometry birefringence liquid tools Refractive index detector in liquid phase Refractive index based on Chemical Products Customized products liquid refractive index liquid refractive index Refractometer method Refractive index method liquid chemicals Refractive index instrument gb/t6488 gb/t6488-2008 gold refractive index refraction fluid Gold + Refractive Index Refractive Index Instruments liquid chemical Refractive index liquid phase Refractive index of naphthalene, Refractive index of naphthalene solid liquid refractive index Method for Determination of Refractive Index Dispenser products Determination of Refractive Index GBT6488 GBT6488-1986 GB/T 6488-2008 GB/T 6488-2022 Powder Refractive Index Refractive index of chemical products Refractive Index of Inorganic Chemical Products Anton Paar The role of refractive index Liquids with a refractive index of 1.4 to 2.3 Refractive index measurement error analysis Alcohol gas phase liquid phase refractive index How to detect refractive index Magnetic susceptibility determination National standard for refractive index of petroleum products Condensation point detection of liquid chemical products Determination method of chemical transmittance Liquid phase standard curve to measure yield Solid powder refractive index test Method steps for measuring refractive index of solid samples Optical rotation measurement solution preparation method How to measure the refractive index of different samples Refractive index test gb/t 6488-2022 Chemical product liquid particle testing gb6488 Determination method of refractive index and refractive index

《GB/T 6488-2022液体化工产品折光率的测定》由TC63（全国化学标准化技术委员会）归口，主管部门为中国石油和化学工业联合会。

Introduction

1. Background of standard formulation and technological evolution

GB/T6488-2022 "Determination of refractive index of liquid chemical products" is the second revision of the original standard GB/T6488-2008. The main updates include:

The temperature range has been extended to 20℃~60℃
The principle and determination method of the fully automatic refractometer have been introduced
The technical requirements and calibration methods of the Abbe refractometer have been optimized

The background of the standard revision is mainly based on technological progress and changes in industry demand, especially driven by the development of automated detection technology, and the use specifications of the fully automatic refractometer have been added.

2. Principle and method of refractive index determination

The refractive index is an important indicator for measuring the physical properties of liquid chemical products, and its determination is based on the law of refraction. This standard provides two main methods:

Method name	Principle overview	Applicable scenarios	Accuracy requirements
Abbe refractometer method	Based on the principle of prism refraction, the refractive index is calculated by measuring the incident angle and refraction angle.	Suitable for precise laboratory measurement.	±0.0001
Fully automatic refractometer method	Using automatic optical detection technology, rapid measurement is achieved through critical angle measurement.	Suitable for mass production and automated detection needs.	±0.0001

3. Comparative Analysis of Standard Frameworks

The following is a comparison of the main differences between GB/T6488-2022 and the original standard GB/T6488-2008:

Technical Requirements	GB/T6488-2008	GB/T6488-2022
Temperature Range	20℃ Fixed	20℃~60℃ Adjustable
Instrument Requirements	Abbe refractometer only	New fully automatic refractometer
Calibration method	Single water drop calibration	Support calibration with multiple standard solutions

4. Implementation suggestions

To ensure the effective implementation of the standard, the following measures are recommended:

Equipment update:Equip with fully automatic refractometer that meets the requirements of the new standard.
Staff training:Systematic training of operators on new technologies and methods.
Quality control:Establish an internal quality control system to ensure the accuracy of measurement results.
Data management:It is recommended to use professional software to record and analyze measurement data.

More samples: DL/T 5154-2012 GB 50021-2001(2009) QC/T 942-2021

Sample only — not a preview of GB/T 6488-2022

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