ICS 83.040.70                          PCD 13

Reaffirmed 2023

1. Scope

This standard prescribes the requirements for concentrated natural rubber latices, concentrated by centrifugal process.

2. REFERENCES

The following standards contain provisions, which through reference in this test, constitute provisions of the standard. At the time of publication, the edition indicated were valid. All standards are subject to revision and parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below.

3708 Methods of test for natural rubber latex:

(Part 1) : 1985 Determination of dry rubber content (NRL:1) (first revision)

(Part 2) : 2001 Determination of sludge content (NRL:5) (first revision)

(Part 4) : 2008/ISO 125 : 2003 Determination of total alkalinity (NRL:7) (first revision)

(Part 5) : 2005/ISO 127 : 1995 Determination of KOH number (second revision)

(Part 6) : 1985 Determination of mechanical stability (NRL:9) (first revision)

(Part 7) : 2005/ISO 506 : 1992 Determination of volatile fatty acid number (second revision)

(Part 11) : 2001 Determination of magnesium (Direct Titration Method) (NRL:18) (second revision)

4905 : 2015 Random Sampling and Randomization Procedures (first revision)

5190 : 1993 Code of packaging natural rubber latex in drums

9316 Methods of test for rubber latex :

(Part 3) : 1988 Determination of coagulum content (Sieve Residue (RL:3) (first revision)

(Part 4) : 1988 Determination of total solids content (RL:4) (first revision)

(Part 5) : 1988 Drawing of samples (RL:5) (first revision)

(Part 7) : 1987 Determination of total copper (RL:7)

(Part 9) : 1987 Determination of total manganese (RL:9)