GB/T 8325-2026 Pending National standards

GB/T 8325-2026 Plastics—Polymer dispersions and rubber latices—Determination of pH

Publish Date: 2026-03-31 Implement Date: 2026-10-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 8325-2026

Standard Type: National standards

Standard Status: Pending

is_force_gb: no

CCS Name: Basic standards and general methods for synthetic resins and plastics

ICS Name: Plastic Composite

Publish Date: 2026-03-31

Implement Date: 2026-10-01

Publisher: 国家市场监督管理总局、国家标准化管理委员会

Technical Committee: 全国塑料标准化技术委员会(SAC/TC 15)

Pages: 12 pages

Scope

本文件描述了通过配有玻璃和银复合参比电极的pH计测定聚合物分散体和橡胶胶乳(天然和合成)pH值的方法。
本文件适用于预硫化胶乳和含有聚合物分散体或橡胶胶乳的化合物,包括黏合剂。
注1:pH值大于11时,本方法的准确度会降低。
注2:配备其他电极的pH计,只要与上述pH计得到的结果相同也能使用。

Development Information

Drafting Units:

中蓝晨光成都检测技术有限公司、浙江新和成特种材料有限公司、中蓝晨光化工研究设计院有限公司、新疆吐鲁番自然环境试验研究中心、中山市弘丰电器有限公司、浙江万盛股份有限公司、青岛市产品质量检验研究院、濮阳蓝星新材料有限公司

Drafting Persons:

马超强、陈小锋、唐椰璐、郭春云、金振世、褚昭宁、李建兵、王咪咪、周丽霞、闫大中

Word Count: 15 Thousand words Pages: 12 pages

Replace the following standards

GB/T 8325-1987 Determination for pH of aqueous dispersions of polymers and copolymers

Referenced Standards

GB 3186-1982 Sampling paint products GB/T 3186-2006 Paints, varnishes and raw materials for paints and varnishes—Sampling GB/T 6682-1992 Water for analytical laboratory use—Specification and test methods GB/T 6682-2008 Water for analytical laboratory use—Specification and test methods GB/T 8290-1987 Natural rubber latex concentrate—Sampling GB/T 8290-2008 Natural rubber latex concentrate—Sampling GB/T 8290-2021 Rubber latex—Sampling GB/T 27501-2011 Preparation method of buffer solutions for the measurement of pH value

Adopt standards

ISO 976:2013

Related Standards

GB/T 12000-1989 Replaced

GB/T 12000-1989 Plastics—Test methods of exposure to damp heat, steady state

Publish Date: 1989-12-25

GB/T 15585-1995 Abolished

GB/T 15585-1995 Determination of shrinkage for injection moulding thermoplastics

Publish Date: 1995-06-12

GB/T 15596-1995 Replaced

GB/T 15596-1995 Plastics—Determination of changes in Color and variations in properties after exposure to daylight under glass, natural weathering or artificial light

Publish Date: 1995-06-12

GB/T 15598-1995 abolished_transferred

GB/T 15598-1995 Testing methods for shear strength of plastics by punch tool

Publish Date: 1995-06-12

GB/T 1843-1996 Replaced

GB/T 1843-1996 Plastics—Determination of izod impact strength

Publish Date: 1996-06-14

GB/T 2035-1996 Replaced

GB/T 2035-1996 Terms and definitions for plastics

Publish Date: 1996-06-14