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GB/T 30158-2013Determination of nickel released from accessories on textile products (English PDF)

纺织制品附件镍释放量的测定

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

December 17, 2013

Implementation date

October 15, 2014

Scope

GB/T 30158-2013 is the English-translated version of 纺织制品附件镍释放量的测定.

GB/T 30158-2013 is the Chinese standard "Determination of nickel released from accessories on textile products". Its scope clause reads: This standard specifies the method for determination of textile products in direct contact with the skin frequently Annex nickel release.

This standard applies to textile products accessories such as zippers, buttons and other nickel release determination, other types of attachments can be implemented by reference. Its clauses include reagents.

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Document preview — GB/T 30158-2013

National Standard of the People's Republic of China

ICS
59.080.01
Classification
W 04

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Contents

  • 1 Scope
  • 2 Normative references
  • 4 Reagents
  • 4.2 DL- lactic acid
  • 4.4 Sodium hydroxide
  • 4.7 hydrochloric acid
  • 4.9 Nitric acid
  • 4.10 dilute nitric acid solution

1 Scope

This standard specifies the method for determination of textile products in direct contact with the skin frequently Annex nickel release.

This standard applies to textile products accessories such as zippers, buttons and other nickel release determination, other types of attachments can be implemented by reference.

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.

Laboratory use specifications and test methods GB/T 6682 Analysis

GB/T 8170 repair digital representation about rules and limit values and judgment

GB/T 30156 Textiles Accessories corrosion coating method and Wear

Principle 3

The samples were tested for nickel release attachment placed in artificial sweat for one week [(168 ± 2) h], by atomic absorption spectrometry, inductively

Coupled plasma emission spectrometer or other suitable analytical instrument measuring the concentration of nickel release solution, combined with the attached sample area calculation

Member of nickel release. Nickel release in micrograms per square centimeter per week [µg/(cm2 · week)] FIG.

4 Reagents

Unless otherwise indicated, the reagents used were of analytical grade, and should not contain nickel. Test water should meet the three GB/T 6682 stipulated

Above the level of water or water.

4.1

sodium chloride.

4.2 DL- lactic acid

greater than 88% (mass fraction), rho = 1.21g/mL.

4.3

urea.

4.4 Sodium hydroxide

solid, purity of 98% or more.

Cooled to room temperature, the solution was transferred to a 100mL volumetric flask, dilute with water to volume.

Scale.

4.7 hydrochloric acid

rho = 1.16g/mL, 32% (volume fraction).

4.9 Nitric acid

65% (mass fraction), rho = 1.40g/mL.

4.10 dilute nitric acid solution

about 5% (mass fraction). The 30mL of nitric acid (4.9) was transferred to pre-loaded with 350mL 500mL beaker of water

Stirred and cooled to room temperature, the solution is transferred to 500mL volumetric flask, dilute to the mark.

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

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