ASTM D264-47 Specification for Pure Para Red Toner (Withdrawn 1948)

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APPROVED AS AMERICAN STANDARD

BY THE AMERICAN STANDARDS ASSOCIATION

ASA NO.: K3!-1947

Standard Specifications for

A.S.T.lVI Designation: D 264- 47 ADOPTED 1928: REVISED 1939, 1940 1941 1947 2

II, p 146 (D 264- 47)

Standard Specifications D 264- 47 were withdrawn June, 1948

Scope

1 These specifications cover the red

pigment commercially known as reduced

para red The pigment may be

pur-chased in the dry form or as a paste in

oil

Composition and Properties

2 (a) Dry Pigment.-The pigment

shall consist of a mixture of

para-nitra·nil-ine toner and substrate, made either by

precipitating the toner on the substrate

or by mixing slurries Unless

other-wise specified by the purchaser, the

substrate shall be calcium carbonate

The pigment shall conform to the

fol-lowing requirements:

Pure organic coloring matter (para red),

min., per cent 15

Calcium carbonate, max., per cent 85

Moisture and other volatile matter, max.,

per cent 1.0

Coarse particles (total residue retained on

a No 325 (44-micron) sieve), max., per

cent 1.5

these specifications are under the jurisdiction of the

and Related Products

were published as tentative from 1927 to 1928, being

re-visecf in 1928

146

(b) Paste in Oit.-The paste in oil

shall be a dispersion of the specified pigment in linseed oil' As received it shall not be caked in the container and shall break up readily in oil to form a smooth paint of brushing consistency

It shall mix readily in all proportions, without curdling, with linseed oil, tur-pentine, or volatile petroleum spirits,

or any mixture of these substances The paste shall conform to the follow-ing requirements: '

Pigment, min., per cent 74 Linseed oil, max., per cent 26 Moisture and other volatile matter, max., per cent 0 7

Coarse particles and skins (total residue retained on a No 325 (44-micron) sieve), max., per cent of the dry pigment 2 0

(c) The mass color and character of the tint formed by mixture with a white pigment shall be the same as, and the strength not less than, that of a refer-ence sample mutually agreed upon by the purchaser and the seller

Number of Tests

3 Two samples shall be taken at random from different packages from

SPECIJ?ICATIONS FOR REDUCED PARA RED (D 264 - 47) 147

each lot, batch, clay's pack, or other unit

of production in a shipment When no

markings distinguishing between units

of production appear, samples shall be

taken from different packages in the

ratio of two samples for each 10,000 lb.,

except that for shipments of less than

10,000 lb two samples shall he taken

At the option of the purchaser, the

samples may be tested separately or

after blending in equal quantities the

samples from the same production unit

to form a composite sample

Methods of Testing

4 Tests shall be conducted in ac-cordance with the appropriate methods

of the American Society for Testing Materials, where applicable Test pro-cedures not covered by A.S.T.M meth-ods shall be mutually agreed upon by the purchaser and the seller