GB/T 30773-2014 in English

《GB/T 30773-2014气相色谱法测定 酚醛树脂中游离苯酚含量》由TC15（全国塑料标准化技术委员会）归口，TC15SC11（全国塑料标准化技术委员会热固性塑料分会）执行，主管部门为中国石油和化学工业联合会。
本标准规定了酚醛树脂中游离苯酚含量的两种气相色谱测试方法。
本标准适用于酚醛树脂中游离苯酚含量的测定。

Determination of residual phenol content in phenolic resins by gas chromatography

1 Scope

This standard specifies two methods, using gas chromatography, of measuring the residual phenol content of phenolic resins.

This standard is applicable to the determination of residual phenol content in phenolic resins.

2 Normative references

The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

ISO 1042: 1998 Laboratory glassware - One-mark volumetric flasks
ISO 6353-2: 1983 Reagents for chemical analysis - Part2: Specifications - First series
ISO 10082: 1999 Plastics - Phenolic resins - Classification and test methods

3 Principle

A test portion is dissolved in a suitable solvent and the residual phenol content determined by gas chromatography.

4 Terms and definitions

For the purposes of this document, the terms and definitions contained in ISO 10082: 1999 and the following terms and definitions apply.

4.1
internal standard
reference material added in known quantity to the test solution to determine the response factor for the phenol

4.2
mass ratio
ratio of the mass of the phenol to the mass of an internal standard in the test solution

 
4.3
peak area ratio
ratio of the phenol peak area to the internal-standard peak area

Foreword i
1 Scope
2 Normative references
3 Principle
4 Terms and definitions
5 Reagents and materials
6 Apparatus
7 Procedure
8 Expression of results
9 Precision
10 Test report
Annex A (Informative) Examples of operating conditions
Annex B (Informative) Examples of operating conditions
Annex C (Informative) Precision