GB/T 23981.1-2019 Active National standards

GB/T 23981.1-2019 Paints and varnishes—Determination of hiding power—Part 1:Determination of contrast ratio of white and light coloured paints

Publish Date: 2019-03-25 Implement Date: 2020-02-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 23981.1-2019

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Paints, pigments, and dyes

ICS Name: Paints and varnishes

Publish Date: 2019-03-25

Implement Date: 2020-02-01

Publisher: 国家市场监督管理总局、中国国家标准化管理委员会

Technical Committee: 全国涂料和颜料标准化技术委员会(SAC/TC 5)

Pages: 16 pages

Scope

GB/T 23981的本部分规定了测定三刺激值Y大于25的白色或浅色漆漆膜的遮盖力（通过对比率测量）的方法。本部分中三刺激值法适用于色漆漆膜以涂布率为20 m2/L施涂于黑白卡片纸或无色透明的聚酯薄膜上的情况，在后者情况下，三刺激值Y是随后将涂漆聚酯薄膜依次置于黑色和白色底板上测量的。本部分中反射率法适用于色漆漆膜以固定规格的涂布器施涂于黑白卡片纸或无色透明的聚酯薄膜上的情况，在后者情况下，反射率是随后将涂漆聚酯薄膜依次置于黑色和白色底板上测量的。本部分适用于三刺激值Y大于25的白色或浅色漆对比率的测定。

Development Information

Drafting Units:

江苏兰陵高分子材料有限公司、标格达精密仪器(广州)有限公司、宣城亚邦化工有限公司、浙江天女集团制漆有限公司、中航百慕新材料技术工程股份有限公司、中车唐山机车车辆有限公司、深圳市广田环保涂料有限公司、阿克苏诺贝尔太古漆油(上海)有限公司、黄河三角洲京博化工研究院有限公司、中海油常州涂料化工研究院有限公司、河北晨阳工贸集团有限公司、中华制漆(深圳)有限公司、佛山市顺德区巴德富实业有限公司、浙江明泉工业涂装有限公司、浙江博星化工涂料有限公司、美巢集团股份公司、株洲市九华新材料涂装实业有限公司、黑龙江省科学院石油化学研究院、东来涂料技术(上海)股份有限公司、上海普申化工机械有限公司、山东东佳集团股份有限公司等

Drafting Persons:

吴璇、陈建刚、徐磊、王崇武、周磊、孙立德、高军、王燕、杨振波、汪国建、董群锋、吴勇、董双建、楚会来、王智、周才俊、黄立明、王君瑞、刘凤仙、龚文晶、刘莉春、孙德旺、李化全、康伦国、李杨波

Word Count: 28 Thousand words Pages: 16 pages

Replace the following standards

GB/T 23981-2009 Determination of contrast ratio of white and light coloured paints

Referenced Standards

GB/T 1725-2007 Paints,varnishes and plastics—Determination of non-volatile-matter content GB/T 6750-2007 Paints and varnishes—Determination of density—Pyknometer method ISO 2811-2 ISO 2811-3 ISO 2811-4 GB 3186-1982 Sampling paint products GB/T 3186-2006 Paints, varnishes and raw materials for paints and varnishes—Sampling GB/T 20777-2006 Paints and varnishes—Examination and preparation of samples for testing

Adopt standards

ISO 6504-3:2006

Related Standards

GB 3186-1982 Replaced

GB 3186-1982 Sampling paint products

Publish Date: 1982-09-01

GB/T 4653-1984 Active

GB/T 4653-1984 The general technical specifications on infrared radiation paints

Publish Date: 1984-08-20

GB/T 5206.1-1985 Replaced

GB/T 5206.1-1985 Paints and varnishes—Vocabulary—Part 1:General terms

Publish Date: 1985-07-16

GB/T 5207-1985 Abolished

GB/T 5207-1985 Coatings—Determination of the danger classification by flash testing (rapid equilibrium method)

Publish Date: 1985-07-16

GB/T 5208-1985 Replaced

GB/T 5208-1985 Coatings—Flash point test—Rapid equilibrium method

Publish Date: 1985-07-16

GB/T 5209-1985 Active

GB/T 5209-1985 Paints and varnishes—Determination of resistance to water—Water immersion method

Publish Date: 1985-07-16