Elements
Old Rule, New Rule
Other Sources
Misc Rules
Not on Quiz but Still Important
100

This element used to never be allowable due to its pyrotechnic origins. It is now allowed in level C. What is it?

Magnesium 

100

This element, that overlaps with one of the pGSR elements, was never allowed and still is never allowed.

Titanium 

100

This source includes one or more of the following elements at level A: Mg, Al, K, Cl

Fireworks

100

What particle type got demoted for ASTM E 1588?

Lead Antimony (PbSb)

100

What is the minimum number of characteristic particles needed to stop relocating?

5

200

There are 5 elements who used to be allowed in A, B, C and still are allowed in these quantities, meaning the rule has (generally) not changed. Name one of these elements. 

Aluminum, Calcium, Copper, Silicon, or Tin

200

The old rule for Nickel was that it could be minor or trace. What is the new rule?

B or C

200

Brake pads typically contain what element at level A?

Iron (Fe)
200

If PbBa particles have S at level A, the particles may resemble glass shards and that is allowable. Why?

It can be from glass frictionators. 

200

Our PSEM rule file currently stops after finding 100 PbBaSb particles. What will it stop at, once we apply the ASTM changes?

50

300

This element is allowed in A, B, or C in all particle types. However, if it is 0.22 cal ammunition, it can only be in level C. What is it?

Aluminum 

300

The old rule for Silicon is that it could be major, minor or trace. What is the new rule?

It can be A, B or C unless in BaAl particles, where it must be < 1/2 Al. 

300

Why must Si be less than 1/2 of Al in BaAl particles?

BaAl with high amounts of Si can indicate aluminosilicate minerals. 

300

Which of the Sinoxid particle types has specific morphology criteria, and what is that criteria?

BaCaSi- spherical, elongated or teardrop

300

What is the new name for "one component particles"? 

Particles with limited associations to pGSR

400

There are 2 elements that used to never be allowed. However, they are now permissible in levels B or C as long as they also found in PbBaSb particles. Name one of these elements.

Bismuth or Strontium

400

The old rule for Strontium was that it was not allowed. What is the new rule?

It can be B or C, but cannot be in consistent particles unless present in characteristic particles. 

400

What combination of two elements (together) can be indicative of Airbags?

Copper-Cobalt (Cu-Co)

400

What is the primary element type of 0.22cal ammunition?

Lead Barium (PbBa)

400

What does ASTM stand for?

American Society for Testing and Materials

500
Explain the rule for Zinc.

Can be A, B or C when present with Cu and less than Cu. When it is by itself, it can only be C. 

500

The old rule for Sulfur was that it could only be minor or trace, and we used the 3rd peak of barium as a guide on this. What is the new rule, generally?

It can be A, B or C but must be less than 1/2 of the Ba Lα peak (1st Ba peak)

500

What is indicative of Galvanized Steel?

Fe, Zn and Cu when Zn>Cu

500
In Sinoxid particles, typically all necessary elements can be A, B or C. (Meaning the particles that make up it's classification type). What is the exception?

In BaAl, both must be A. 

500

Name one of the types of non-Sinoxid pGSR characteristic particles 

Gadolinium, Titanium, Zinc
Gallium, Copper, Tin
Gallium, Titanium, Zinc