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CIDQ IDPX Exam - Topic 4 Question 12 Discussion

Posted by Vince on Oct 29, 2025 at 03:13 AM

Formaldehyde, PVC, and phthalates are examples of chemicals included in

Suggested Answer: A

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29 comments · newest first
GA
Garry 6 months ago
I’m not sure, but I feel like A) The Red List is the safest bet.
LE
Leslie 7 months ago
I’m leaning towards C) Hazardous building types. They’re often used in construction.
SI
Sina 7 months ago
I agree, A) The Red List makes sense. They’re harmful to health.
RO
Rosann 7 months ago
I thought PVC was safe now?
LA
Latrice 8 months ago
Wait, are they really that dangerous?
DE
Desiree 8 months ago
Totally agree, they should be banned in construction.
MA
Maile 8 months ago
These are all known toxic substances!
DI
Dierdre 8 months ago
Wait, is this a trick question? I'm going with C. Hazardous building types. Sounds legit.
MO
Moon 8 months ago
Hazardous building types? Really? I think I'll stick with B. Class C finishes.
CE
Cecil 8 months ago
D. CAL 133 compliant products. Easy peasy.
AB
Abraham 9 months ago
Hmm, I'll go with A. The Red List. Sounds like the right answer.
KI
Kimberely 9 months ago
Definitely B. Class C finishes. Formaldehyde and phthalates are all over those.
RE
Renato 9 months ago
I'm pretty sure it's D. CAL 133 compliant products.
LE
Lenita 9 months ago
I recall that the Red List is specifically for materials to avoid, so I’m leaning towards A, but I could be mixing it up with Class C finishes.
LE
Lezlie 9 months ago
I’m a bit confused. I thought CAL 133 was more about fire safety standards, not necessarily about chemicals like formaldehyde.
RO
Rolland 9 months ago
I practiced a question about hazardous materials, and I feel like PVC and phthalates were mentioned there. Maybe it's related to hazardous building types?
RA
Raylene 10 months ago
I think it's A) The Red List. Those chemicals are definitely hazardous.
GE
Georgiana 10 months ago
Yup, definitely on the Red List!
GE
Geoffrey 11 months ago
I think I remember something about the Red List including harmful chemicals, but I'm not entirely sure if all of these are on it.
DE
Deane 11 months ago
This seems straightforward. Formaldehyde, PVC, and phthalates are all found in hazardous building products, so the answer is clearly D. CAL 133 compliant products.
JA
Jaleesa 11 months ago
I'm a little confused by this question. I know those chemicals are bad, but I'm not sure how they relate to building materials. I'll have to review my notes and see if I can figure this out.
MA
Malcom 11 months ago
Okay, I've got this. Formaldehyde, PVC, and phthalates are all chemicals found in hazardous building materials, so the answer has to be C. Hazardous building types. Easy peasy!
FR
France 11 months ago
Hmm, this is a tricky one. I know formaldehyde and phthalates are considered hazardous, but I'm not sure about the other options. I'll have to think this through carefully.
GL
Glory 12 months ago
I think this is asking about hazardous building materials, so I'll focus on options C and D. Hazardous building types sounds like the right category, but I'm not sure if that's the full answer.
JO
Jolanda 6 months ago
↳ replying to Glory
C seems like the best choice overall.
LA
Lauran 6 months ago
↳ replying to Glory
I think D is more about fire safety, not chemicals.
CH
Charlette 10 months ago
↳ replying to Glory
Hazardous building types definitely fits the chemicals listed.
IN
Inocencia 10 months ago
↳ replying to Glory
I agree, C sounds right.
IV
Ivette 10 months ago
↳ replying to Glory
But what about D? CAL 133 compliant could be relevant too.
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