GB/T 8297-2008 (English Version) PDF

Standard No.: GB/T 8297-2008
Language: Chinese, Available in English version
Release Date: 2008
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Status: Be replaced 2018-07
Replace By: GB/T 8297-2017
Latest: GB/T 8297-2023
Replace: GB/T 8297-2001

Scope: Warning: Personnel using this standard should be familiar with the operating procedures of formal laboratories. This standard does not intend to address all safety issues that may arise from the use of this standard. Users formulate corresponding safety and health rules and ensure compliance with relevant national laws and regulations. This standard specifies the method for the determination of potassium hydroxide (KOH) value of concentrated natural rubber latex preserved entirely or partially in ammonia. This standard applies to latex containing boric acid. This standard does not apply to latex preserved with potassium hydroxide, nor to natural latex, compound latex, vulcanized latex and emulsified latex other than Hevea brasiliensis latex.

GB/T 8297-2008 Referenced Document

GB/T 18012 Rubber latex—Determination of pH*， 2021-10-11 Update
GB/T 8290 Rubber latex—Sampling*， 2021-10-11 Update
GB/T 8294 Natural rubber latex concentrate. Determination of boric acid content
GB/T 8298 Latex, rubber.Determination of total solids content*， 2017-12-29 Update
GB/T 8300 Natural rubber latex concentrate.Determination of alkalinity*， 2016-12-13 Update
ISO/TR 9272 Rubber and rubber products - Determination of precision for test method standards

2023 GB/T 8297-2023 Determination of potassium hydroxide (KOH) value of concentrated natural rubber latex
2017 GB/T 8297-2017 Rubber, natural latex concentrate.Determination of KOH number
2008 GB/T 8297-2008 Natural rubber latex concentrate.Determination of KOH number
1987 GB 8297-1987 Determination of Potassium Hydroxide Value of Natural Concentrated Latex