GB/T 8289-2008
Natural rubber latex concentrate. Centrifuged or creamed, ammonia-preserved types. Speecification (English Version)
- Standard No.
- GB/T 8289-2008
- 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
- 2017-07
- Replace By
- GB/T 8289-2016
- Latest
- GB/T 8289-2023
- Replace
- GB/T 8289-2001
- Scope
- This standard specifies the specifications, packaging, marking, storage and transportation of concentrated natural rubber latex produced by centrifugation and creaming methods preserved in whole or in part with ammonia. This standard applies to the concentrated natural rubber latex produced by the centrifugation or creaming method of the following Hevea brasiliensis latex: High ammonia concentrated natural rubber latex, centrifuged concentrated latex preserved only with ammonia after concentration, with an alkalinity (calculated as latex) of at least 0.6% (mass fraction ); Concentrated natural rubber latex with low amine, centrifuged concentrated latex preserved with ammonia and other preservatives after concentration, the alkalinity (based on latex) is not more than 0.29% (mass fraction); Concentrated natural rubber latex with medium ammonia, concentrated with ammonia and other preservatives Centrifugal concentrated latex preserved in a preservative, with an alkalinity (calculated as latex) of at least 0.30% (mass fraction); high-ammonia creamed concentrated natural latex, after concentration, creamed concentrated latex preserved only with ammonia, with an alkalinity (calculated as latex) ) is at least 0.55% (mass fraction); low-ammonia creamed concentrated natural latex, the creamed concentrated latex preserved with ammonia and other preservatives after concentration, the alkalinity (based on latex) shall not exceed 0.35% (mass fraction).
GB/T 8289-2008 Referenced Document
- GB/T 8290 Rubber latex—Sampling*， 2021-10-11 Update
- GB/T 8291 Determination of latex clot content (sieve residue)*， 2023-08-06 Update
- GB/T 8292 Rubber latex,natural,concentrate.Determination of volatile fatty acid number
- GB/T 8293 Rubber latex, natural concentrate—Determination of sludge content*， 2019-06-04 Update
- GB/T 8295 Natural rubber and latex.Determination of copper content.Photometric method*， 2008-06-04 Update
- GB/T 8296 Raw natural rubber and rubber latices. Determination of manganese content. Sodium periodate photmetric methods*， 2008-06-04 Update
- GB/T 8297 Determination of potassium hydroxide (KOH) value of concentrated natural rubber latex*， 2023-09-07 Update
- GB/T 8298 Latex, rubber.Determination of total solids content*， 2017-12-29 Update
- GB/T 8299 Natural rubber latex concenttrate. Determination of dry rubber content
- GB/T 8300 Natural rubber latex concentrate.Determination of alkalinity*， 2016-12-13 Update
- GB/T 8301 Natural rubber latex concenttrate. Determination of mechanical stability
- NY/T 924 Technical Regulations for Processing of Concentrated Natural Rubber Ammonia Preserved Centrifugal Latex*， 2021-11-09 Update
GB/T 8289-2008 history
- 2023 GB/T 8289-2023 Concentrated natural latex ammonia preservation centrifugal or cream latex specifications
- 2016 GB/T 8289-2016 Natural rubber latex concentrate.Centrifuged or creamed, ammonia-preserved types.Specifications
- 2008 GB/T 8289-2008 Natural rubber latex concentrate. Centrifuged or creamed, ammonia-preserved types. Speecification
- 1987 GB 8289-1987 Specifications of Natural Concentrated Latex Ammonia Preserved Centrifugal Latex
