 Colour Standards for the US Naval Stores Rosin Scale
The colour standards specified in ASTM D509 for measuring the US Naval Stores Rosin scale are in the form of coloured glasses mounted in metal cubes for direct comparison with the rosin samples.
Tintometer Ltd has discontinued supply of these rosin cubes and now supplies graded glasses for the US Naval Stores Rosin scale in metal holders, similar to conformance filters, as listed below. These modified colour standards should appear in the next method revision of ASTM D509.
| Code |
Standard |
Code |
Standard |
| 245220 |
XC |
245280 |
K |
| 245210 |
XB |
245290 |
I |
| 245200 |
XA |
24530 |
H |
| 245230 |
X |
245310 |
G |
| 245240 |
WW |
245320 |
F |
| 245250 |
WG |
245330 |
E |
| 245260 |
N |
245340 |
D |
| 245270 |
M |
|
FF |
A special grade FF is used for dark wood resins.
The Rosin Comparator 3000 (US Naval Stores) and PFX195 Automatic Colorimeters include the facility to grade US Naval Stores Rosin scale.
Sets of 15, 12 and 8 Lovibond® US Naval Stores Rosin standards supplied in a presentation case are also available.
| Code |
No Standards |
Range Covered |
| 245090 |
15 |
XC, XB, XA, X, WW, WG, N, M, K, I, H, G, F, E, D |
| 245080 |
12 |
X, WW, WG, N, M, K, I, H, G, F, E, D |
| 245100 |
8 |
X, WW, WG, N, M, K, H, D |
|
