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ASTM D 1076 : 2021

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.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

Available format(s)

Hardcopy , PDF

Superseded date

24-06-2023

Superseded by

ASTM D 1076 : 2023

Language(s)

English

Published date

24-06-2021

€74.48
Excluding VAT

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Superseded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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