GB/T 14214-2019Spectacle frames - General requirements and test methods (English PDF)

Foreword

This Standard is drafted in accordance with the rules given in GB/T 1.1-2009.

This Standard replaces GB/T 14214-2003 "Spectacle frames - General

requirements and test methods". Compared with GB/T 14214-2003, the main

technical changes of this Standard are as follows.

- Delete tensile properties from mechanical stability (see 5.7.1 of the 2003

edition);

- CHANGE "Plating adhesion" to "Adhesion of coating layer" (see 4.7.2; 5.8.1

of the 2003 edition);

- ADD test methods for materials other than metallic materials (see 8.5);

- Modify the test conditions for resistance to perspiration. The lowest part of

the sample is 15 mm +/- 3 mm above the solution, which is changed to not

less than 12 mm (see 8.4.2.1; 9.7.2.1 of the 2003 edition);

- ADD the requirements for nickel release and corresponding test method

(see 4.2.2 and 5.2);

- ADD the requirements for resistance to optical radiation and corresponding

test method (see 4.10 and 8.9).

This Standard uses the redraft law to modify and adopt ISO 12870.2016

"Ophthalmic optics - Spectacle frames - Requirements and test methods".

Compared with ISO 12870.2016, this Standard has a lot of adjustments in

structure. Annex A lists the comparison table for clause-subclause number of

this Standard and ISO 12870.2016.

The main technical differences between this Standard and ISO 12870.2016 and

their reasons are as follows.

- As for the normative references, this Standard has adjusted the technical

differences, to adapt to the technical conditions of China. The adjustments

are mainly reflected in Clause 2 "Normative references". The specific

adjustments are as follows.

 ADD GB/T 11533 (see 7.2.1);

 Replace ISO 105-A02 with GB/T 250-2008 identical to the

international standard (see 4.10);

 Replace ISO 11381 with GB/T 197 which modifies and adopts the

international standard (see 4.5);

 Replace ISO 3696 with GB/T 6682 which modifies and adopts the

international standard (see 8.4.1.4);

 Replace ISO 105-B02 with GB/T 8427 which modifies and adopts the

international standard (see 8.9.1.2);

 Replace ISO 7998 with GB/T 26397 which modifies and adopts the

international standard (see Clause 3);

 Replace ISO 8624.2011 with GB/T 38004 identical to the international

standard (see 4.4);

 Replace ISO/TS 24348.2014 with GB/T 38009 which modifies and

adopts the international standard (see 4.2.2);

 Delete ISO 8596 and ISO 11380;

- ADD terms and definitions "metal frame", "plastic frame", "boxed

measurement system", "boxed center", "distance between centre",

"horizontal boxed lens size", "distance between lenses", and "overall length

of side" (see 3.4 to 3.11);

- ADD "4.7.2 Adhesion of coating layer" requirement and "8.5 Adhesion of

coating layer" test method;

- Unify the material used for rimless and semi-rimless frames in 6.1.1 "test

lens" and modify it to "resin material";

- In Table 1, add the provision that "The subclauses with which compliance

is optional for dimensional tolerances of rimless and semi-rimless mounts

(4.4) do not include the overall length of side";

- ADD "9.2 Label identification".

The following editorial changes have been made to this Standard.

- Modify standard name;

- Delete ISO 12870.2016 Clause 11 "Reference to this International

Standard", Annex A (Informative) "Recommendations for the design of

spectacle frames", and Annex C (Informative) "European requirements and

legislation on nickel release";

- ADD Annex A (Informative) "Comparison table for clause-subclause

number of this Standard and ISO 12870.2016";

- ADD Annex C (Informative) "Composition of nominal materials".

This Standard was proposed by and shall be under the jurisdiction of China

National Light Industry Council.

Drafting organizations of this Standard. Donghua University, China National

Inspection & Testing Centre for Ophthalmic Optic Glass and Enamel Products,

Zhejiang Yingchang Glasses Industry Co., Ltd., Zhejiang Taiheng Optical Co.,

Ltd.

Main drafters of this Standard. Zhang Nini, Huang Hongliang, Tang Lingling,

Guo Lin, Zhou Yong, Hou Dongcai, Tang Tianri.

The previous editions of the standard replaced by this Standard were released

as follows.

- GB/T 14214-1993, GB/T 14214-2003.

Spectacle frames - General requirements and test

methods

1 Scope

This Standard specifies the technical requirements for spectacle frames, the

selection of test samples, sample pretreatment and requirements, testing,

inspection and compliance, test methods, and marking.

2 Normative references

The following documents are indispensable for the application of this document.

For the dated references, only the editions with the dates indicated are

applicable to this document. For the undated references, the latest edition

(including all the amendments) are applicable to this document.

GB/T 197 General purpose metric screw threads - Tolerances (GB/T 197-

2018, ISO 965-1.2013, MOD)

3 Terms and definitions

The terms and definitions defined in GB/T 26397 and the following ones apply

to this document. In order to facilitate the use, some of the terms and definitions

in GB/T 26397 are repeatedly listed below.

4 Technical requirements

If a spectacle frame is manufactured using materials (e.g. plastics, alloys,

coatings or pigments) not previously used in spectacle frame manufacture, the

clinical evaluation shall be made according to the appropriate standard(s),

either using the spectacle frame itself or using studies where the identical

material is used in other medical devices.

5 Selection of test samples

6 Sample pretreatment and requirements

Sample conditioning and test conditions

Before starting the series of tests, the test samples shall be conditioned for at

least 4 h at an ambient temperature of (23 +/- 5) °C, in the condition as received

from the manufacturer or supplier, without prior realignment, adjustment or

lubrication. Carry out the testing in an atmosphere maintained within the same

temperature range.

7 Testing, inspection and compliance

In accordance with the requirements and sequence of Tables 1 and 2, test

samples 1 and 2.If all items meet, the product is considered to meet this

Standard.

If two or more items do not meet, the product is considered to not to comply

with this Standard.

8 Test methods

The test apparatus consists of an annular clamp, a pressure peg and a linear

measuring device with an accuracy better than 0.1 mm. The annular clamp shall

be capable of holding the test sample without twist or slip and have a diameter

of (25 +/- 2) mm, with two contact surfaces, E1 and E2, made of an elastic material

(e.g. polyamide).

9 Marking

At the designated locations on the product, there shall be clear and firm

markings.

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