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  • Testing and inspection
  • Overseas tests and tests requested by buyers
  • GB tests of China
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GB tests of China

What is GB

GB is an abbreviation for Guó Jiā Biāo Zhǔn, which means a national standard in Chinese, similar with the case of the Korean Industrial Standards. Established by the government of China, the standard should be followed across the nation, is enforced for all applicable items, and is treated at the same status of laws.

GB

GB 18401 tests

GB 18401 (National General Safety Technical Code for Textile Products) is a national standard established according to <Standardization Law of the People’s Republic of China> and <Product Quality Law of the People’s Republic of China>. It is a compulsory standard that is designed to ensure safety and quality regarding all types of textile products that are produced, imported, and sold in China. In China, the standard suggests basic technical requirements regarding safety. Products are selected and inspected when necessary to prevent defective products from being distributed and to manage the quality of textile products.

KATRI–BWJS cooperation agreement and reception and issuance of GB test reports

In a cooperation agreement with Beijing Wool Jute & Silk Fabrics Quality Supervision Laboratory, which is a government-authorized test institute, KATRI receives application for tests for the GB standard and issues test reports accordingly, helping proactively companies launch in the markets in China.

KATRI-BWJS 상호업무협정

인증서1

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Example of KATRI labels

Items applicable for GB 18401

Items applicable for GB 18401
Classificationg Classification by usage
Category A Textile products for infants Such as diapers, underwear, gloves, socks, outer clothing, hats, and beddings
Category B Textile products for direct contact skin Such as brassieres, underwear, vests, shirts, blouses, covers, cotton and wool pants, short pants, and bed sheets
Category C Textile products for non direct contact skin Such as sweaters, outer clothing, skirts, pants, curtains, linings, fillers, and bed sheets>

GB 18401 test items and criteria

GB 18401 test items and criteria
Content Test methods Category A Category B Category C
Formaldehyde content (mg/kg) GB/T 2912.1 ≤ 20 ≤ 75 ≤ 300
pH GB/T 7573 4.0 ~ 7.5 4.0 ~ 8.5 4.0 ~ 9.0
Color
Fastness
(Grade)
Water (change, staining) GB/T 5713 ≥ 3-4 ≥ 3 ≥ 3
Sweat (change, staining) GB/T 3922 ≥ 3-4 ≥ 3 ≥ 3
Dry rubbing GB/T 3920 ≥ 4 ≥ 3 ≥ 3
Saliva (change, staining) GB/T 18886 ≥ 4 - -
Odor GB 18401 6.7 None
Azo dye (mg/kg) GB/T 17592.1 Prohibite

- pH 4.0–10.5 is possible in case of the products for which wet processing is to the finished products

- Products that are to be discolored, following the laundry do not need the criteria for fastness

Work procedures

1. Applying for tests and paying the fees

KATRI’s main office and branches

KATRI’s offices in China : Shanghai, Yantai, Qingdao, and Dalian

2. Test and analysis

GB/ISO/KS standards tests

BWJS of Beijing

KATRI’s main office and the office in Shanghai

3. Issuing the test report

KATRI’s main office and the office in Shanghai.

BWJS of Beijing

51, WANGSAN-RO, DONGDAEMUN-SU, SEOEL, KOREA

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