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UDC 667.6: 665.345.4 Ref. No. : IÇO/R 276- 1962 (E)
IS0
I NT ERN AT1 ON A L O RG A N IZ AT I O N FO R STA N DA R D IZATl ON
IS0 RECOMMENDATION
R 276
LINSEED STAND OILS
1st EDITION
November 1962
COPYRIGHT RESERVED
The copyright of IS0 Recommendations and IS0 Standards
belongs to IS0 Member Bodies. Reproduction of these
documents, in any country, may be authorized therefore only
by the national standards organization of that country, being
a member of ISO.
For each individual country the only valid standard is the national standard of that country.
Printed in Switzerland
Also issued in French and Russian. Copies to be obtained through the national standards organizations.
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BRIEF HISTORY
The IS0 Recommendation R 276, Linseed Stand Oils, was drawn up by Technical Com-
mittee ISO/TC 35, Raw Materials for Paints, Varnishes and Sindar Products, the Secretariat of
which is held by the Nederlands Normalisatie-instituut ("1).
Work on this question by the Technical Committee began in 1950 and led in 1959 to the
adoption of a Draft IS0 Recommendation.
In November 1959, this Draft IS0 Recommendation (No. 328) was circulated to all the IS0
Member Bodies for enquiry. It was approved by the following Member Bodies :
.-
Greece New Zealand
Austria
Belgium India Portugal
Burma Ireland Spain
Chile Israel Sweden
Czechoslovakia United Kingdom
Italy
Denmark Japan U.S.A.
Germany Netherlands U.S.S.R.
One Member Body opposed the approval of the Draft:
France
The Draft IS0 Recommendation was then submitted by correspondence to the IS0 Coun-
cil, which decided in November 1962, to accept it as an IS0 RECOMMENDATION.
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ISO/R 276 - 1962 (E)
IS0 Recommendation R 276 November 1962
LINSEED STAND OILS
1. SCOPE
This IS0 Recommendation defines the important requirements of linseed stand oils and the
methods of test for these requirements.
2. DEFINITION
Linseed stand oils are polymerized linseed oils obtained only by heat from linseed oil and con-
forming to the requirements given below.
NOTE. - Certain of these materials are also referred to as “lithographic varnishes”.
3. REQUIRED CHARACTERISTICS AND THEIR TOLERANCES
The linseed stand oils should have the following characteristics :
~
~- ~~~
I Claus
Stand oil 1 Stand oil 2 Stand oil 3 Stand oil 4 Stand oil 5 describi
Propert)
extra low low medium high extra high test
metha
I
l
viscos- I at 20 OC 1 max. IO 40 to 80 80 to I60 min. 160
IO to 40
5. I
ity, *
(60 to 1 !O)
(at25”C) (8) I (8 to 30) (30 to 60) (I 10)
poises I
o. I0 0.10
0.10 o. 10 0.10 5.2
Ash, max. 20
~~ ~ ~ ~
6 10 15 20 20 5.3
Acid value, max.
~ ~ ~~
Saponification
’ 186 to 200 186 to 200 186 to 200 5.4
186 to 200 186 to 200
value
I
,
Unsaponifiable
2.0 2.0 2.0 2.0 2.0 5.5
matter, max. %
,
~
I
Polybromide test negative I - -
5.6
~~
Test for presence 1
l negative negative negative negative negative 5.7
of colophoiiy I
~~
I ~
Test for presence 1
negative negative 5.8
negative negative
of blown oils
Clearness and
To be agreed between purchaser and vendor
colour
Similar to that of a reference sample agreed between
Odour
purchaser and vendor ** I
A deviation
* For lithographic varnishes, the viscosity to be specified should be agreed between purchaser and vendor.
of 10% from the specific viscosities is permitted.
** The arbitration method should be agreed beforehand between purchaser and vendor.
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ISO/R 276 - 1962 (E)
4. SAMPLING
See IS0 Recommendation R , * Sampling Raw Materials for Paints and Varnishes.
5. TEST METHODS
5.1 Viscosity
Any method by which can be measured the viscosity of liquids by means of a falling sphere.
5.2 Ash
Refer to the relevant method described in the Annex to IS0 Recommendation R 150 **.
5.3 Acid value
Refer to the relevant method described in the Annex to 1SO Recommendation R 150. **
5.4 Saponification value
Refer to the relevant method described in the Annex to IS0 Recommendation R 1.50. **
5.5 Unsaponifiable matter
Refer to the relevant method described in the Annex to IS0 Recommendation R 150. **
The solvent to be used should be agreed between purchaser and vendor.
5.6 Polybromide test
5.6.1 Reagents
5.6.1.1 Sulphuric acid, 4N.
5.6.1.2 Potassium hydroxide, 1N ethanolic solution.
5.6.1.3 Sodium sulphate, anhydrous.
5.6.1.4 Bromine, analytical grade.
5.6.1.5 Diethyl ether, d,, = 0.712 to 0.716 having a residue non-volatile at 80 “C of not
more than 0.001 %.
Light petroleum, boiling range 40 to 60 OC.
5.6.1.6
* At present Draft IS0 Recommendation No. 73 1.
** IS0 Recommendation
...