There are several specific topics in Paper II of UPSC exams that require knowledge of international standards and regulations. These topics are important as they help in assessing the candidates' understanding of global issues and their ability to analyze and interpret international policies. Here are some of the key topics that necessitate knowledge of international standards and regulations:

1. International Organizations and Institutions:
- Knowledge of international standards and regulations is vital to comprehend the functioning and roles of various global organizations, such as the United Nations (UN), World Trade Organization (WTO), International Monetary Fund (IMF), and World Bank.
- Candidates should be aware of the international standards and regulations set by these organizations in areas like trade, finance, and development.

2. Global Agreements and Treaties:
- Understanding of international standards and regulations is crucial to comprehend the provisions and implications of global agreements and treaties.
- Candidates should be familiar with agreements like the Paris Agreement on Climate Change, the Nuclear Non-Proliferation Treaty (NPT), and the Universal Declaration of Human Rights (UDHR), among others.
- Knowledge of the standards and regulations set by these agreements helps in analyzing their impact and assessing compliance.

3. International Trade and Commerce:
- International standards and regulations play a significant role in trade and commerce. Candidates should have knowledge of the regulations established by organizations like the WTO and the International Organization for Standardization (ISO).
- Understanding of international trade agreements, such as the General Agreement on Tariffs and Trade (GATT) and the Trans-Pacific Partnership (TPP), is also essential.
- Knowledge of these standards and regulations enables candidates to comprehend trade disputes, tariff negotiations, and the impact of trade policies.

4. Human Rights and International Law:
- Familiarity with international standards and regulations related to human rights and international law is crucial.
- Candidates should have knowledge of documents like the UDHR, International Covenant on Civil and Political Rights (ICCPR), and International Covenant on Economic, Social, and Cultural Rights (ICESCR).
- Understanding these standards and regulations helps in analyzing human rights violations and assessing the legal implications of international conflicts.

In conclusion, knowledge of international standards and regulations is essential for several specific topics in Paper II of UPSC exams. Understanding these standards and regulations is crucial for comprehending the functioning of international organizations, analyzing global agreements, assessing trade policies, and understanding human rights and international law.