GB/T 1549-2008 in English

《GB/T 1549-2008纤维玻璃化学分析方法》由TC245（全国玻璃纤维标准化技术委员会）归口，主管部门为中国建筑材料联合会。
本标准规定了纤维玻璃化学分析的通则、试样制备以及玻璃中二氧化硅、三氧化二硼、总铁、氧化亚铁、二氧化钛、氧化锰、二氧化锆、三氧化二铝、氧化钙、氧化镁、氧化锂、氧化钠、氧化钾、氟化物、总砷、总锑、总硫、五氧化二磷、氧化锶、氧化锌、二氧化铈和钡、镉、铬、汞、铅等化学成分测定的试剂、分析步骤、结果计算和精密度等。

1 Warning

In this standard, the use or dilution of commercially available volatile strong acids like hydrochloric acid, nitric acid, hydrofluoric acid, etc., the use of sulfuric acid, nitric acid, hydrochloric acid, perchloric acid, hydrofluoric acid, etc. for sample dissolving and the use of potassium pyrosulfate, etc. on blast burner for sample fusing shall be carried out in fume hood. Plastic gloves shall be worn when using such strongly corrosive acids as hydrofluoric acid, sulfuric acid, nitric acid, perchloric acid, etc.

This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

2 Scope

This standard specifies general rules and specimen preparation for fibrous glass chemical analysis as well as reagents, analytical procedures, result calculation, precision, etc. of determination of such chemical components as silicon dioxide, boron trioxide, total iron, ferrous oxide, titanium dioxide, manganese oxide, zirconium dioxide, aluminium oxide, calcium oxide, magnesium oxide, lithium oxide, sodium oxide, potassium oxide, fluoride, total arsenic, total antimony, total sulfur, phosphorus pentoxide, strontium oxide, zinc oxide, cerium dioxide, barium, cadmium, chromium, mercury, lead, etc. in glass.

This standard is applicable to the determination of chemical components in alkali-free (E and ECR), medium-alkali (C), alkali-resisting (AR), high-alkali (A), high-silica, high-strength (S), basalt, glass wool, rock wool, mineral wool and aluminum silicate wool glasses as well as fibrous glasses and the determination of chemical components in other glasses with similar chemical composition.

3 Normative References

The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments (excluding corrections), or revisions, of any of these publications do not apply to this standard. However parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies.

GB/T 601-2002 Chemical Reagent - Preparatoins of Standard Volumetric Solutions
GB/T 602-2002 Chemical Reagent - Preparations of Standard Solutions for Impurity
GB/T 4842 Pure Argon
GB/T 6682 Water for Analytical Laboratory Use - Specification and Test Methods
GB 6819 Dissolved Acetylene
GB/T 8980 High Purity Nitrogen
GB/T 10624 High Purity Argon

4 General Rules

4.1 Instruments and calibration

Electric furnace used for drying sample; chamber electric resistance furnace used for sample ignition; one-ten-thousandth analytical balance used for accurate weighing; volumetric flask, pipet and burette used for glassware instrument in scaling volume; visible spectrophotometer used in spectrophotometric method; atomic absorption spectrometer used in atomic absorption spectrophotometry (AAS); flame photometer used in flame atomic emission spectrometry (FES); inductively coupled plasma atomic emission spectrometer used in inductively coupled plasma atomic emission spectrometry (ICP), etc. The above-mentioned instruments and equipment shall be periodically calibrated so that they meet the testing requirements.

Foreword i
1 Warning
2 Scope
3 Normative References
4 General Rules
5 Specimen Preparation
6 Determination of Silicon Dioxide
6.1 Gravimetric Method - Silicon-molybdenum Blue Spectrophotometry (Method I)
6.2 Potassium Fluosilicate Volumetric Method (Method II)
7 Determination of Boron Trioxide
8 Determination of Total Iron
8.1 Chemical Reduction Spectrophotometric Method (Method I)
8.2 Photochemical Reduction Spectrophotometric Method (Method II)
8.3 Atomic Absorption Spectrophotometry (AAS) (Method III)
9 Determination of Titanium Dioxide
9.1 Diantipyryl Methane Spectrophotometric Method (Method I)
9.2 Spectrophotometric Method with Hydrogen Peroxide (Method II)
10 Determination of Manganese Oxide
10.1 Atomic Absorption Spectrophotometry (Method I)
10.2 Inductively Coupled Plasma Atomic Emission Spectrometry (ICP) Method (Method II)
11 Determination of Zirconium Dioxide
12 Determination of Aluminum Oxide
12.1 Zinc Acetate Back Titration Method
12.2 Copper Sulfate Back Titration Method (Method II)
13 Determination of Calcium Oxide
13.1 Complexometric Titration Method with EDTA (Method I)
13.2 Atomic Absorption Spectrophotometry (Method II)
14 Determination of Magnesium Oxide
14.1 Complexometric Titration Method with EDTA (Method I)
14.2 Atomic Absorption Spectrophotometry (Method II)
15 Determination of Lithium Oxide, Sodium Oxide and Potassium Oxide
15.1 Atomic Absorption Spectrophotometry (AAS) (Method I)
15.2 Sodium Oxide and Potassium Oxide Determination by Flame Atomic Emission Spectrometry (FES) (Method II)
16 Determination of Ferrous Oxide
17 Determination of Fluoride
17.1 Distillation - Eriochrome Cyanine R - Zirconium Spectrophotometric Method (Method I)
17.2 Precipitate - Eriochrome Cyanine R - Zirconium Spectrophotometric Method (Method II)
17.3 Ion Selective Electrode Method (Method III)
18 Determination of Total Arsenic
18.1 Distillation - As - Molybdenum Blue Spectrophotometric Method (Method I)
18.2 Arsenic Expelling Difference - Molybdenum Blue Spectrophotometric Method (Method II)
18.3 Inductively Coupled Plasma Atomic Emission Spectrometry (ICP) (Method III)
19 Determination of Total Antimony
20 Determination of Total Sulfur
20.1 Barium Sulfate Precipitate Gravimetric Method (Method I)
20.2 Inductively Coupled Plasma Atomic Emission Spectrometry (ICP) (Method II)
21 Determination of Phosphorus Pentoxide
21.1 Spectrophotometric Method (Method I)
21.2 Inductively Coupled Plasma Atomic Emission Spectrometry (ICP) (Method II)
22 Determination of Strontium Oxide
22.1 Atomic Absorption Spectrophotometry (AAS) (Method I)
22.2 Inductively Coupled Plasma Atomic Emission Spectrometry (ICP) (Method II)
23 Determination of Zinc Oxide
23.1 EDTA Complexometric Titration (Method I)
23.2 Atomic Absorption Spectrophotometry (AAS) (Method II)
23.3 Inductively Coupled Plasma Atomic Emission Spectrometry (ICP) (Method III)
24 Determination of Cerium Dioxide
24.1 Oxidation Reduction Titration (Method I)
24.2 Inductively Coupled Plasma Atomic Emission Spectrometry (ICP) (Method II)
25 Determination of Barium, Cadmium, Chromium, Mercury and Lead
26 Test Report
Annex A (Normative) Determination of the Content of Aluminium Oxide, Calcium Oxide, Magnesium Oxide, Zirconium Dioxide, Total Iron and Titanium Dioxide in Fiberglass via Inductively Coupled Plasma Atomic Emission Spectrometry (ICP)