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ASTM D 1076 : 2015 : R2020

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by
superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Standard Specification for Rubber—Concentrated, Ammonia Preserved, Creamed, and Centrifuged Natural Latex
Available format(s)

Hardcopy , PDF

Superseded date

21-06-2023

Language(s)

English

Published date

26-06-2020

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 preserved with ammonia only or by formaldehyde followed by ammonia.

Category 2—Creamed Hevea natural latex preserved with ammonia only or by formaldehyde followed by ammonia.

Category 3—Centrifuged Hevea natural latex preserved with low ammonia with other necessary preservatives.

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, with other necessary preservatives and stabilizers.

Category 5—Centrifuged Hevea natural latex treated with aluminum hydroxide or by other means, preserved with ammonia only or by formaldehyde followed by ammonia containing less than 0.5 % non-rubber content.

1.2This specification is not necessarily applicable to latices prepared 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.

Committee
D 11
DocumentType
Standard
Pages
13
PublisherName
American Society for Testing and Materials
Status
Superseded
SupersededBy
Supersedes

ASTM D 1566 : 2021 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 4004 : 2006 : R2017 Standard Test Methods for Rubber—Determination of Metal Content by Flame Atomic Absorption (AAS) Analysis
ASTM F 623 : 2019 Standard Performance Specification for Foley Catheter
ASTM D 1566 : 2019 Standard Terminology Relating to Rubber
ASTM D 1417 : 2016 Standard Test Methods for Rubber Latices—Synthetic
ASTM D 3492 : 2016 Standard Specification for Rubber Contraceptives (Male Condoms)
ASTM D 3772 : 2015 Standard Specification for Industrial Rubber Finger Cots

ASTM D 1278 : 1991 : REV A : R2020 Standard Test Methods for Rubber from Natural Sources—Chemical Analysis

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