ASTM D 1076 : 2021
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Standard Specification for Rubber—Concentrated, Ammonia Stabilized, Creamed, and Centrifuged Natural Latex
Hardcopy , PDF
24-06-2023
English
24-06-2021
Committee |
D 11
|
DocumentType |
Standard
|
Pages |
13
|
PublisherName |
American Society for Testing and Materials
|
Status |
Superseded
|
SupersededBy | |
Supersedes |
1.1This specification covers requirements for first grade concentrated natural rubber latex (see Table 1) of the following categories:
Category 1—Centrifuged Hevea natural latex stabilized with ammonia only.
Category 2—Creamed Hevea natural latex stabilized with ammonia only.
Category 3—Centrifuged Hevea natural latex stabilized with low ammonia.
Category 4—Centrifuged, or centrifuged and creamed, guayule latex, or other natural rubber latex, containing less than 200 µg total protein per gram dry weight of latex, with ammonia or other hydroxide.
Category 5—Centrifuged Hevea natural latex treated with aluminum hydroxide or by other means, stabilized with ammonia only containing less than 0.5 % non-rubber content.
1.2This specification is not necessarily applicable to latices prepared, stabilized, or preserved by other methods, and shall not be construed as limiting the desirability or usefulness of other categories of latices. It does apply to natural latex sources other than Hevea brasiliensis but does not apply to compounded latex concentrates.
1.3The analytical procedures applicable to the specifications are included and appear in the following order:
Section | |
Sampling | 6 and 7 |
Total Solids | 8 |
Dry Rubber Content | 9 |
Protein Content | 10 |
Total Alkalinity | 11 |
Viscosity | 12 |
Sludge Content | 13 |
Coagulum Content | 14 |
KOH Number | 15 |
pH | 16 |
Mechanical Stability | 17 |
Copper and Manganese | 18 |
Density | 19 – 31 |
Volatile Fatty Acids | 32 – 36 |
Boric Acid | 37 |
Dry Films | 38 |
Precision for All Test Methods | 39 |
1.4The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.5This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
ASTM D 4004 : 2006 : R2017 | Standard Test Methods for Rubber—Determination of Metal Content by Flame Atomic Absorption (AAS) Analysis |
ASTM D 3772 : 2015 | Standard Specification for Industrial Rubber Finger Cots |
ASTM D 1417 : 2016 | Standard Test Methods for Rubber Latices—Synthetic |
ASTM D 3492 : 2016 | Standard Specification for Rubber Contraceptives (Male Condoms) |
ASTM F 623 : 2019 | Standard Performance Specification for Foley Catheter |
ASTM D 1566 : 2021 | Standard Terminology Relating to Rubber |
ASTM D 4004 : 2006 : R2021 | Standard Test Methods for Rubber—Determination of Metal Content by Flame Atomic Absorption (AAS) Analysis |
ASTM D 3314 : 2002 : R2021 | Standard Test Method for Rubber—Chemical Analysis for Polystyrene Blocks In SBR (Styrene-Butadiene Rubber) and Styrene-Reinforced Latices |
ASTM D 3772 : 2015 : R2021 | Standard Specification for Industrial Rubber Finger Cots |
ASTM D 1417 : 2016 : R2021 | Standard Test Methods for Rubber Latices—Synthetic |
ASTM D 1566 : 2021 : REV A | Standard Terminology Relating to Rubber |
ASTM D 3314 : 2002 : R2017 | Standard Test Method for Rubber—Chemical Analysis for Polystyrene Blocks In SBR (Styrene-Butadiene Rubber) and Styrene-Reinforced Latices |
ASTM D 6499 : 2018 : R2023 | Standard Test Method for Immunological Measurement of Antigenic Protein in Hevea Natural Rubber (HNR) and its Products |
ASTM D 6499 : 2018 | Standard Test Method for Immunological Measurement of Antigenic Protein in Hevea Natural Rubber (HNR) and its Products |
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